The Excretory System

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Mrs. Keadle JH Science Name__________________________________ period _____ date assigned_____________ date due ______________ date returned ___________ The Excretory System Match the following vocabulary words to their definition. Please write a capital letter in the blank. A. tube that urine travels to leave the body. 1. kidneys B. sac-like muscular organ that stores urine. 2. ureters C. tiny structures that filter blood in the kidneys. 3. bladder D. filters blood and eliminates cellular waste. Returns salt, ions and glucose to the blood. 4. urethra E. two narrow tubes that urine flows through to get to the bladder. 5. nephron F. excess salt is released when you sweat. 6. sweat gland 1 The Excretory System Mrs. Keadle JH Science Which of the following is NOT an 7 Two body systems work together 8 organ of excretion? to help remove waste products from blood. What are these two systems? F the kidneys A circulatory and excretory G the skin B skeletal and digestive H the lungs J the pancreas C circulatory and digestive D muscular and excretory Which cell organelle has a 9 The main function of the 10 excretory system is to - similar function to the excretory system? Hint: which organelle helps the cell get rid of waste? A produce enzymes to help digest food F mitochondria B collect and remove waste products from the body G nucleus C prevent disease and fight H lysosome infections J ribosome D carry oxygen and nutrients to the body’s cells 2 The Excretory System Mrs. Keadle JH Science 11 The excretory system in the human body has several components. Some of them are identified in the diagram below. What is the relationship between the kidneys, ureters, and urinary bladder? A They work together to transport blood. B They work independently with specialized functions. C They work together to maintain the chemical balance of blood. D They work as storage organs for fluids to prevent dehydration. 12 A ureter carries liquid waste 13 Which cell organelles have a between which structures? similar function the excretory system? F a kidney and the bladder A nucleus and cell membrane G a nephron and a kidney B cell wall and golgi body H a glomerulus and a nephron C lysosome and golgi J the bladder and the outside D mitochondria and nucleus of the body 3 The Excretory System Mrs. Keadle JH Science 15 Which of the following correctly 14 Which of these organs is part of the excretory system? pairs the structure and function of the bladder? F kidney A a pair of tubes; waste G liver transport H small intestine B a muscular sac; storage of liquid waste J stomach C a network of blood vessels; waste elimination D a thin tube; filtration of waste from the blood 16 The diagram below shows some structures of the human excretory system. Which of these structures filters wastes from the blood and regulates the amount of water in the body to maintain homeostasis? F R G S H T J W 4 The Excretory System .

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Primary Excretory System Organs Kidneys Are Bean-Shaped Organs of a Reddish Brown Colour That Are Found in the Sides of the Vertebral Column
Organs in the Excretory System and Their Functions The excretory system is essential to one’s health. Its responsibility is to remove waste from the body. The excretory system is made up of numerous organs that work in unison to ensure that waste is effectively removed from your body. Below are the details of the organs of excretory system, along with the roles they play in detoxification. Primary Excretory System Organs Kidneys are bean-shaped organs of a reddish brown colour that are found in the sides of the vertebral column. Once the body has extracted what it needs from food and drink, it sends the wastes to the kidneys. The kidneys filter the wastes, including urea, salt and excess water, which are flushed out of the body as urine. s 2. Skin The skin performs its excretory function via the sweat glands. These glands produce sweat that contains salt, excess oils, water, and other unnecessary substances which are then excreted out of the body through small pores. Sweating also helps to cool the body during evaporation. 3. Lungs The lungs are very important excretory organs as they expel carbon dioxide from the body via exhalation. The lungs use cells known as alveoli to remove the carbon dioxide from our blood. Otherwise, the carbon dioxide would accumulate and have a detrimental effect to our body. Accessary Excretory System Organs 1. Liver Although considered a secondary, or accessary excretory system organ, the liver plays a vital part in keeping the body clean. Harmful poisons and chemicals that are either produced in the body or consumed are broken down and detoxified by the liver.
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Excretory Products and Their Elimination
290 BIOLOGY CHAPTER 19 EXCRETORY PRODUCTS AND THEIR ELIMINATION 19.1 Human Animals accumulate ammonia, urea, uric acid, carbon dioxide, water Excretory and ions like Na+, K+, Cl–, phosphate, sulphate, etc., either by metabolic System activities or by other means like excess ingestion. These substances have to be removed totally or partially. In this chapter, you will learn the 19.2 Urine Formation mechanisms of elimination of these substances with special emphasis on 19.3 Function of the common nitrogenous wastes. Ammonia, urea and uric acid are the major Tubules forms of nitrogenous wastes excreted by the animals. Ammonia is the most toxic form and requires large amount of water for its elimination, 19.4 Mechanism of whereas uric acid, being the least toxic, can be removed with a minimum Concentration of loss of water. the Filtrate The process of excreting ammonia is Ammonotelism. Many bony fishes, 19.5 Regulation of aquatic amphibians and aquatic insects are ammonotelic in nature. Kidney Function Ammonia, as it is readily soluble, is generally excreted by diffusion across 19.6 Micturition body surfaces or through gill surfaces (in fish) as ammonium ions. Kidneys do not play any significant role in its removal. Terrestrial adaptation 19.7 Role of other necessitated the production of lesser toxic nitrogenous wastes like urea Organs in and uric acid for conservation of water. Mammals, many terrestrial Excretion amphibians and marine fishes mainly excrete urea and are called ureotelic 19.8 Disorders of the animals. Ammonia produced by metabolism is converted into urea in the Excretory liver of these animals and released into the blood which is filtered and System excreted out by the kidneys.
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Essential Question: How Do Major Organ Systems Work Together in Living Organisms?
Essential Question: How do major organ systems work together in living organisms? Standards: S7L2d. Explain that tissues, organs, and organ systems serve the needs cells have for oxygen, food, and waste removal. S7L2e. Explain the purpose of the major organ systems in the human body (i.e., digestion, respiration, reproduction, circulation, excretion, movement, control and coordination, and for protection from disease). Watch the video clip below and identify which system of the body has a similar function. http://www.youtube.com/ watch?v=8erOa6W67IM [watch 1 min 30 seconds] Digestive System Role of the Digestive System Series of organs that convert food into essential nutrients, and moves unwanted waste out How does it do it? Chewing • Mechanical Digestion – Breaking down food into smaller pieces • Teeth are used to break food into smaller pieces Esophagus Pipe connecting the mouth to the stomach (involuntary muscles) Stomach Food is chemically broken down by acid to form paste called Chyme Chemical Digestion Food is converted (changed) into substances that can be absorbed by the body Small Intestine Where the nutrients (glucose, protein, etc.) are absorbed into the bloodstream Large Intestine • Pulls out water from left overs • Last portion called rectum • Anus is the opening at the end Finish the Story Because Mrs. Fizzle’s class doesn’t want to exit Arnold “the back way”, they decide to go back the way they came. Write a brief explanation of the route they will take and what they will see and experience as they go back the way they
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Excretory System
Excretory System Excretory System • Functions • Removes wastes from blood • Removes harmful substances from blood • Regulates body fluids • Maintains homeostasis • Main Parts • Kidneys • Urinary bladder • Large intestine • Lungs • Skin Urinary System: • Not all the waste products that leave the body are solid. • Most liquid wastes formed by the body are excreted by the urinary system. Bladder • Muscular sac in the pelvis • Urine is made in the kidneys and travels down two tubes called ureters to the bladder • Urine exits the bladder into the urethra, which carries out of the body Large Intestine: • The undigested material not absorbed by the large intestine forms a semi- solid waste product known as feces. These solid wastes are removed by the body through the rectum. Kidneys: • The main organs of the urinary system • Bean-shaped organs in your abdomen that filter blood and remove waste. • The wastewater, or urine, that has been filtered out of the blood moves into the ureters, tubes that connect the kidneys to the bladder. • The bladder is a muscular sac that holds urine until it exits the body through the urethra. The Lungs: • The lungs are another part of the excretory system. • Lungs are part of the respiratory system, also. • Wastes removed by the lungs include carbon dioxide and water vapor produced by cellular respiration. The Skin • The skin also functions in excretion. • Sweat glands in the skin produce perspiration. • When a person perspires, the skin excretes water and salts. Working Together Works with the circulatory system in transporting blood through kidneys. Urea, uric acid, and water are removed from the blood and most of the water is put back in the system.
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Ch. 38 Excretory System Vena Cava Aorta
Digestive System Mouth • Digestion begins in the ________Mouth . ________Chewing begins the process of digestion • __________________Mechanical digestion - is the physical breakdown of large pieces of food into smaller pieces. • __________________Chemical digestion - large food molecules are broken down into smaller food molecules with the help of different enzymes. Mouth • _______________salivary glands secrete saliva, which contains the enzyme _________amylase to break the bonds in _________starches (which is what type of macromolecule: ______________)Carbohydrate and releases sugar. It also contains the enzyme __________lysozyme that fights infection by digesting the cell walls of ________bacteria . The saliva also helps ___________moisten the food and make it easier to chew. The release of saliva is under the control of the ________________nervous system Esophagus • Your ________tongue and your throat_______ muscles help you swallow your food, which (after swallowing) is now called a _______bolus . As you swallow, the epiglottis________ closes over the _______trachea and the bolus enters the __________.esophagus Gravity______ is not responsible for food going down into the stomach. Esophagus • A series of contractions of _______smooth muscle squeeze the food through the ___________esophagus . This is called peristalsis_________ . A thick ring of muscle called the cardiac_____________sphincter closes the esophagus and prevents the contents of the ________stomach from moving back into the esophagus (also known as acid reflux____). ***Remember: No Digestion_ occurs in the esophagus. Stomach • Food from the esophagus empties into a large muscular sac called the ___________stomach . Alternating contractions of the stomach’s ____3 smooth muscle layers churn_____ and mix the food____. Stomach- Chemical digestion: • The stomach contains microscopic _______________Gastric glands that produce and release various substances. Some of these include: • ________Mucus - a fluid that __________lubricates and _________protects the stomach wall.
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Excretory System
Excretory system Components The excretory system, or urinary system, is made up of the two kidneys, ureters, bladder and urethra, together with the branches of the two renal arteries and veins. Functions The kidneys are responsible for osmoregulation and the elimination of toxic wastes, including nitrogenous excretion. Osmoregulation is important as extracellular fluid must not induce osmosis either by causing cells to lose water and shrink or to gain water and swell up. Nitrogenous excretion is necessary as amino acids cannot be stored by the body. Proteins obtained in food invariably contain an imbalance of certain amino acids – they are not in the correct Figure 1 The excretory system. proportions for use in protein synthesis in the body. Those that cannot be assimilated are deaminated by the liver, forming fatty acids and ammonia. Most of the highly toxic ammonia is rapidly converted to urea to be removed from the body by the kidneys in urine. The kidneys not only excrete metabolic wastes including ammonia, urea, uric acid and creatinine, but have the main responsibility for maintaining the stability of extracellular fluid volume, inorganic ion composition and osmolarity (solute concentration). They contribute to maintenance of pH and also secrete certain hormones. Key mechanisms The functional unit in a kidney is the nephron (kidney tubule). Blood is filtered: Each nephron is made up of a filtering unit - Bowman’s capsule, and a tubule. Each capsule contains a tight knot of capillaries, called the glomerulus. Blood flows into the glomeruli under pressure forcing a filtrate free of cells and protein through the capillary walls.
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Human Systems
CONSEJERÍA DE EDUCACIÓN Dirección General de Participación e Innovación Educativa Identificación del material AICLE TÍTULO Human systems NIVEL LINGÜÍSTICO A1.2 SEGÚN MCER IDIOMA Inglés ÁREA / MATERIA Conocimiento del Medio Natural, Social y Cultural Aspectos básicos sobre los diferentes aparatos del ser humano, los órganos NÚCLEO TEMÁTICO que los componen y cómo funcionan. Secuencia didáctica que describe los diferentes aparatos que conforman el ser humano, destacando el aparato digestivo, respiratorio, circulatorio, reproductor GUIÓN TEMÁTICO y digestivo, así como sus órganos y las funciones y procesos que desarrollan en el ser humano. FORMATO PDF CORRESPONDENCIA 4º de Educación Primaria CURRICULAR AUTORÍA Miguel Ángel Cabo Sánchez. TEMPORALIZACIÓN 7-8 sesiones APROXIMADA - Aprender a aprender: los alumnos/as trabajan de forma autónoma en múlti- ples de las actividades a lo largo de la unidad. - Competencia lingüística: los alumnos/as interactúan de forma oral y escrita en diversidad de actividades. Se integran todas las destrezas en las diferentes actividades. También se presenta el proyecto de forma oral. - Competencia en el conocimiento e interacción con el mundo físico: los alum- nos/as conocen y descubren su cuerpo y funcionamiento de este. COMPETENCIAS - Competencia digital y tratamiento de la información: los alumnos/as hacen BÁSICAS uso de las TIC para ampliar información en torno al ser humano y sus carac- terísticas. - Competencia cultural y artística: los alumnos/as realizan un proyecto sobre un aparato humano usando diferentes materiales de reciclado u otros. Fo- mento de la creatividad. - Autonomía e iniciativa personal: los alumnos/as investigan y eligen el aparato que desean para llevar a cabo su proyecto.
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Human Anatomy and Body Systems Levels of Organization
Human Anatomy and Body Systems Levels of Organization Remember, the human body is organized in several levels, from the simplest to the most complex. Cells – the basic unit of life Tissues – clusters of cells performing a similar function Organs – made of tissues that perform one specific function Organ Systems – groups of organs that perform a specific purpose in the human body ***The purpose of the 11 organ systems is for the human body to maintain homeostasis. 4- Cell types muscle tissue most abundant tissue controls internal movement digestion, blood through veins external movement of body epithelial tissue covering for body & organs linings of organs & vessels connective tissue holds organs in place ligaments, tendons, some keep organs in place nervous tissue receives messages from body’s internal and external messages analyze data & direct response The 11 Human Body Systems The 11 human body systems are as follows: -- nervous system -- integumentary system -- respiratory system -- digestive system -- excretory system -- skeletal system -- muscular system -- circulatory system -- endocrine system -- reproductive system -- lymphatic (immune) system The Circulatory System Purpose: to deliver oxygenated blood to the various cells and organ systems in your body so they can undergo cellular respiration Cell type - Muscle Major Organs and Their Functions Heart – the major muscle of the circulatory system -- pumps deoxygenated blood into the lungs, where it gets oxygenated, returned to the heart, and then pumped out through the aorta to
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Urinary System 1
THE URINARY SYSTEM 1 BY Dr. BHAGAT SINGH JAISWAL ASSISTANT PROFESSOR SCHOOL OF STUDIES IN PHARMACEUTICAL SCIENCES JIWAJI UNIVERSITY GWALIOR M.P., INDIA 2 The urinary system plays a vital part in maintaining homeostasis of water and electrolytes within the body. The kidneys produce urine that contains metabolic waste products, including the nitrogenous compounds urea and uric acid, excess ions and some drugs. The urinary system is the main excretory system and consists of the following structures: • 2 kidneys, which secrete urine • 2 ureters that convey the urine from the kidneys to the urinary bladder • Urinary bladder, which collects and stores urine the urethra through which urine leaves the body 3 The main functions of the kidneys are: Formation of urine, maintaining water and electrolyte Regulating blood pH Excretion of waste products and foreign substances Production and secretion of Calcitriol (active form of Vitamin D) and Erythropoietin, the hormone that stimulates formation of RBC Production and secretion of Renin, an important enzyme in the control of blood pressure Maintaining blood osmolarity Regulating blood glucose level Regulating blood volume • Urine is stored in the bladder and excreted by the process of micturition. KIDNEYS 4 The kidneys lie on the posterior abdominal wall, one on each side of the vertebral column, behind the peritoneum and below the diaphragm. They extend from the level of the 12th thoracic vertebra to the 3rd lumbar vertebra, receiving some protection from the lower rib cage. • The right kidney is usually slightly lower than the left, probably because of the considerable space occupied by the liver. • Kidneys are bean-shaped organs, about 11 cm long, 6 cm wide, 3 cm thick and weigh 150 g.
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The Human Body—Respiratory and Excretory Systems April 20 – April 24 Time Allotment: 30 Minutes Per Day
Life Science 7: The Human Body—Respiratory and Excretory Systems April 20 – April 24 Time Allotment: 30 minutes per day Student Name: ________________________________ Teacher Name: ________________________________ Life Science 7: Respiratory and Excretory Systems April 20 – April 24 Packet Overview Date Objective(s) Page Number Monday, April 20 1. Explain the functions of the respiratory system. 2 2. Assess the importance of gas exchange and surface area in the respiratory system. Tuesday, April 21 1. Explain how humans breathe and what other 4 organ systems are directly involved with the respiratory system. 2. Assess how speech is formed and compare speech in humans to communication in elephants. Wednesday, April 22 1. Analyze the respiratory system function through 6 hands on lab. Thursday, April 23 1. Explain the function of the excretory system. 8 2. Analyze what chemical analysis of urine can tell us about human health. Friday, April 24 School Holiday N/A Additional Notes: Welcome to your fifth week of Life Science distance learning. Your lab on Wednesday will include a write up of your observations and conclusions, which will count for a minor assessment grade. I encourage you all to attend Zoom sessions, even if you don’t think you have questions about the material…we’ve had great discussions to augment the material in the packets! Be well, my fine Great-Hearted scholars! Zoom Office Hours: 2nd Period: Monday & Wednesday, 11:00 am to 11:50 am 3rd Period: Monday & Wednesday, 1:00 pm to 1:50 pm 4th Period: Tuesday & Thursday, 10:00 am to 10:50 am 5th Period: Tuesday & Thursday, 11:00 am to 11:50 am 6th Period: Tuesday & Thursday, 1:00 pm to 1:50 pm Academic Honesty I certify that I completed this assignment I certify that my student completed this independently in accordance with the GHNO assignment independently in accordance with Academy Honor Code.
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NOTES: Urinary (Excretory) System (CH 15) Part 1 – Anatomy of the Urinary System Urinary (Excretory) System…
NOTES: Urinary (Excretory) System (CH 15) Part 1 – Anatomy of the Urinary System Urinary (Excretory) System… *The urinary system consists of the kidneys, ureters, urinary bladder, and urethra.. Functions of the Urinary System: 1) remove salts and nitrogenous wastes from the blood 2) maintain normal water and electrolyte concentrations within body fluids 3) regulates pH and volume of body fluids 4) helps control red blood cell production and blood pressure ORGANS OF THE URINARY SYSTEM 1) KIDNEYS: remove substances from the blood; form urine 2) URETERS: transport urine from the kidneys 3) URINARY BLADDER : stores urine 4) URETHRA : conveys urine to the outside of the body ● KIDNEYS located high on the posterior abdominal wall each kidney is divided into the: *CORTEX : outer region *MEDULLA : inner region *PELVIS : funnel-shaped region where superior end of ureters expands KIDNEY FUNCTIONS: 1) remove metabolic wastes from the blood & combine them with water formation of urine 2) secrete hormone erythropoietin control of red blood cell formation 3) involved in activation of vitamin D 4) help to maintain blood pressure KIDNEY BLOOD SUPPLY: • RENAL ARTERIES : arise from abdominal aorta ; supply blood to kidney branches into smaller arteries & eventually into the AFFERENT ARTERIOLES • blood returns to the inferior vena cava through the RENAL VEINS ● URETERS each ureter is about 25 cm long begin at the renal pelvis; extend downward and join the URINARY BLADDER from underneath ● URETERS 3 layers: 1) inner layer (mucous coat): continuous
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Respiratory & Excretory Systems Respiratory System Path of Air
34.2 and 34.3 Respiratory and Excretory Systems Respiratory System Respiratory · sustains cellular respiration (making ATP) by supplying O2 to body cells & Excretory Systems removing CO2 waste from cells Sections 34.2 & 34.3 · 2 processes breathing = moving air into and out of lungs respiration = exchange of gases in the body external = gas exchange between air and blood internal = gas exchange between blood and body cells Path of Air · enters mouth and nose Breathing hairs filter out dust and lg. particles · rate controlled by brain cilia sweep foreign particles responds to levels of CO2 toward throat in bloodstream mucous membranes warm and · inhalation moisten diaphragm contracts, · filtered air enters the pharynx (throat) ribcage expands, and · passes through epiglottis into the air fills lungs larynx (voice box) · exhalation · trachea (windpipe) bronchi lungs diaphragm relaxes, · inside each lung bronchi branch into ribcage contracts, and air flows out of lungs bronchioles · bronchioles lead to alveoli (little air sacs) where external respiration occurs O2 into capillaries CO2 back into lungs for exhale Excretory System Kidneys · aka urinary system · bean-shaped · functions · filter out wastes, water, and remove water (nitrogen-based) and excess water salts from the blood from body · renal cortex - outer layer maintain pH of blood · renal medulla - inner layer · structures · composed of nephrons kidneys, ureters, urinary bladder, urethra 34.2 and 34.3 Respiratory and Excretory Systems Nephrons · filtering unit of the kidney about 1 million in each kidney · blood is filtered in the glomerulus · anything the body needs or can reuse is reabsorbed as it travels through the nephron ex.
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