Glossary • Amalgam: Common Filling Material, Also Known As “Silver Fillings,” Containing Mercury (Approx
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Mouth Esophagus Stomach Rectum and Anus Large Intestine Small
1 Liver The liver produces bile, which aids in digestion of fats through a dissolving process known as emulsification. In this process, bile secreted into the small intestine 4 combines with large drops of liquid fat to form Healthy tiny molecular-sized spheres. Within these spheres (micelles), pancreatic enzymes can break down fat (triglycerides) into free fatty acids. Pancreas Digestion The pancreas not only regulates blood glucose 2 levels through production of insulin, but it also manufactures enzymes necessary to break complex The digestive system consists of a long tube (alimen- 5 carbohydrates down into simple sugars (sucrases), tary canal) that varies in shape and purpose as it winds proteins into individual amino acids (proteases), and its way through the body from the mouth to the anus fats into free fatty acids (lipase). These enzymes are (see diagram). The size and shape of the digestive tract secreted into the small intestine. varies in each individual (e.g., age, size, gender, and disease state). The upper part of the GI tract includes the mouth, throat (pharynx), esophagus, and stomach. The lower Gallbladder part includes the small intestine, large intestine, The gallbladder stores bile produced in the liver appendix, and rectum. While not part of the alimentary 6 and releases it into the duodenum in varying canal, the liver, pancreas, and gallbladder are all organs concentrations. that are vital to healthy digestion. 3 Small Intestine Mouth Within the small intestine, millions of tiny finger-like When food enters the mouth, chewing breaks it 4 protrusions called villi, which are covered in hair-like down and mixes it with saliva, thus beginning the first 5 protrusions called microvilli, aid in absorption of of many steps in the digestive process. -
Tooth Size Proportions Useful in Early Diagnosis
#63 Ortho-Tain, Inc. 1-800-541-6612 Tooth Size Proportions Useful In Early Diagnosis As the permanent incisors begin to erupt starting with the lower central, it becomes helpful to predict the sizes of the other upper and lower adult incisors to determine the required space necessary for straightness. Although there are variations in the mesio-distal widths of the teeth in any individual when proportions are used, the sizes of the unerupted permanent teeth can at least be fairly accurately pre-determined from the mesio-distal measurements obtained from the measurements of already erupted permanent teeth. As the mandibular permanent central breaks tissue, a mesio-distal measurement of the tooth is taken. The size of the lower adult lateral is obtained by adding 0.5 mm.. to the lower central size (see a). (a) Width of lower lateral = m-d width of lower central + 0.5 mm. The sizes of the upper incisors then become important as well. The upper permanent central is 3.25 mm.. wider than the lower central (see b). (b) Size of upper central = m-d width of lower central + 3.25 mm. The size of the upper lateral is 2.0 mm. smaller mesio-distally than the maxillary central (see c), and 1.25 mm. larger than the lower central (see d). (c) Size of upper lateral = m-d width of upper central - 2.0 mm. (d) Size of upper lateral = m-d width of lower central + 1.25 mm. The combined mesio-distal widths of the lower four adult incisors are four times the width of the mandibular central plus 1.0 mm. -
Study Guide Medical Terminology by Thea Liza Batan About the Author
Study Guide Medical Terminology By Thea Liza Batan About the Author Thea Liza Batan earned a Master of Science in Nursing Administration in 2007 from Xavier University in Cincinnati, Ohio. She has worked as a staff nurse, nurse instructor, and level department head. She currently works as a simulation coordinator and a free- lance writer specializing in nursing and healthcare. All terms mentioned in this text that are known to be trademarks or service marks have been appropriately capitalized. Use of a term in this text shouldn’t be regarded as affecting the validity of any trademark or service mark. Copyright © 2017 by Penn Foster, Inc. All rights reserved. No part of the material protected by this copyright may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the copyright owner. Requests for permission to make copies of any part of the work should be mailed to Copyright Permissions, Penn Foster, 925 Oak Street, Scranton, Pennsylvania 18515. Printed in the United States of America CONTENTS INSTRUCTIONS 1 READING ASSIGNMENTS 3 LESSON 1: THE FUNDAMENTALS OF MEDICAL TERMINOLOGY 5 LESSON 2: DIAGNOSIS, INTERVENTION, AND HUMAN BODY TERMS 28 LESSON 3: MUSCULOSKELETAL, CIRCULATORY, AND RESPIRATORY SYSTEM TERMS 44 LESSON 4: DIGESTIVE, URINARY, AND REPRODUCTIVE SYSTEM TERMS 69 LESSON 5: INTEGUMENTARY, NERVOUS, AND ENDOCRINE S YSTEM TERMS 96 SELF-CHECK ANSWERS 134 © PENN FOSTER, INC. 2017 MEDICAL TERMINOLOGY PAGE III Contents INSTRUCTIONS INTRODUCTION Welcome to your course on medical terminology. You’re taking this course because you’re most likely interested in pursuing a health and science career, which entails proficiencyincommunicatingwithhealthcareprofessionalssuchasphysicians,nurses, or dentists. -
Crocodile Facts and Figures
Crocodile facts The saltwater crocodile is the largest living reptile species. It can grow up to six metres and is a serious threat to humans. Saltwater crocodiles have evolved special characteristics that make them excellent predators. • Large saltwater crocodiles can stay underwater for at least one hour because they can reduce their heart rate to 2-3 beats per minute. This means that crocodiles can wait underwater until they see prey, or if people are using the same spot regularly, the crocodile can wait underwater until someone approaches the water’s edge. • A crocodile can float with only eyes and nostrils exposed, enabling it to approach prey without being detected. • When under water, a special transparent eyelid protects the crocodile’s eye. This means that crocodiles can still see when they are completely submerged. • The tail of a crocodile is solid muscle and a major source of power, making it a strong swimmer and able to make sudden lunges out of the water to capture prey. These strong muscles also mean that for shorts bursts of time crocodiles can move faster than humans can on land. • Crocodiles have a thin layer of guanine crystals behind their retina. This intensifies images, allowing crocodiles to see better at low light levels. • Crocodiles have a ‘minimum exposure’ posture in the water, which means that only their sensory organs of eyes, cranial platform, ears and nostrils remain out of the water. This means that they often go unseen by prey, but if they are observed, the prey is often not able to tell how big the crocodile is. -
Veterinary Dentistry Basics
Veterinary Dentistry Basics Introduction This program will guide you, step by step, through the most important features of veterinary dentistry in current best practice. This chapter covers the basics of veterinary dentistry and should enable you to: ü Describe the anatomical components of a tooth and relate it to location and function ü Know the main landmarks important in assessment of dental disease ü Understand tooth numbering and formulae in different species. ã 2002 eMedia Unit RVC 1 of 10 Dental Anatomy Crown The crown is normally covered by enamel and meets the root at an important landmark called the cemento-enamel junction (CEJ). The CEJ is anatomically the neck of the tooth and is not normally visible. Root Teeth may have one or more roots. In those teeth with two or more roots the point where they diverge is called the furcation angle. This can be a bifurcation or a trifurcation. At the end of the root is the apex, which can have a single foramen (humans), a multiple canal delta arrangement (cats and dogs) or remain open as in herbivores. In some herbivores the apex closes eventually (horse) whereas whereas in others it remains open throughout life. The apical area is where nerves, blood vessels and lymphatics travel into the pulp. Alveolar Bone The roots are encased in the alveolar processes of the jaws. The process comprises alveolar bone, trabecular bone and compact bone. The densest bone lines the alveolus and is called the cribriform plate. It may be seen radiographically as a white line called the lamina dura. -
Human Body- Digestive System
Previous reading: Human Body Digestive System (Organs, Location and Function) Science, Class-7th, Rishi Valley School Next reading: Cardiovascular system Content Slide #s 1) Overview of human digestive system................................... 3-4 2) Organs of human digestive system....................................... 5-7 3) Mouth, Pharynx and Esophagus.......................................... 10-14 4) Movement of food ................................................................ 15-17 5) The Stomach.......................................................................... 19-21 6) The Small Intestine ............................................................... 22-23 7) The Large Intestine ............................................................... 24-25 8) The Gut Flora ........................................................................ 27 9) Summary of Digestive System............................................... 28 10) Common Digestive Disorders ............................................... 31-34 How to go about this module 1) Have your note book with you. You will be required to guess or answer many questions. Explain your guess with reasoning. You are required to show the work when you return to RV. 2) Move sequentially from 1st slide to last slide. Do it at your pace. 3) Many slides would ask you to sketch the figures. – Draw them neatly in a fresh, unruled page. – Put the title of the page as the slide title. – Read the entire slide and try to understand. – Copy the green shade portions in the note book. 4) -
Identification Notes &~@~-/~: ~~*~@~,~ 'PTILE
CATEGORY Identification Notes &~@~-/~: ~~*~@~,~ ‘PTILE for wildlife law enforcement ~ C.rnrn.n N.rn./s: Al@~O~, c~~~dil., ~i~.xl, Gharial PROBLEM: Skulls of Crocodilians are often imported as souvenirs. nalch (-”W 4(JI -“by ieeth ??la&ularJy+i9 GUIDE TO PRELIMINARY IDENTIFICATION OF CROCODILL4N SKULLS 1. Nasal bones separated from nasal aperture; mandibular symphysis extends to the 15th tooth. 2. Gavialis gangeticus Nasal bones entering the nasal aperture; mandibular symphysisdoes not extend beyond the8th tooth . Tomistoma schlegelii 2. Nasal bones separated from premaxillary bones; 27 -29maxi11aryteeth,25 -26mandibularteeth Nasal bones in contact with premaxillaq bo Qoco@khs acutus teeth, 18-19 mandibular teeth . Tomiitomaschlegelii 3. Fourth mandibular tooth usually fitting into a notch in the maxilla~, 16-19 maxillary teeth, 14-15 mandibular teeth . .4 Osteolaemus temaspis Fourth mandibular tooth usually fitting into a pit in the maxilla~, 14-20 maxillary teeth, 17-22 mandibular teeth . .5 4. Nasal bones do not divide nasal aperture. .. CrocodylW (12 species) Alligator m&siss@piensh Nasalboncx divide nasal aperture . Osteolaemustetraspk. 5. Nasal bones do not divide nasal aperture. .6 . Paleosuchus mgonatus Bony septum divides nasal aperture . .. Alligator (2 species) 6. Fiveteethinpremaxilla~ bone . .7 . Melanosuchus niger Four teeth in premaxillary bone. ...Paleosuchus (2species) 7. Vomerexposed on the palate . Melanosuchusniger Caiman crocodiles Vomer not exposed on palate . ...”..Caiman (2species) Illustrations from: Moo~ C. C 1921 Me&m, F. 19S1 L-.. Submitted by: Stephen D. Busack, Chief, Morphology Section, National Fish& Wildlife Forensics LabDate submitted 6/3/91 Prepared in cooperation with the National Fkh & Wdlife Forensics Laboratoy, Ashlar@ OR, USA ‘—m More on reverse side>>> IDentMcation Notes CATEGORY: REPTILE for wildlife law enforcement -- Crocodylia II CAmmom Nda Alligator, Crocodile, Caiman, Gharial REFERENCES Medem, F. -
Dry Mouth QUESTIONS and ANSWERS U.S
Dry Mouth QUESTIONS AND ANSWERS U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health What do I need to know about dry mouth? Dry mouth is the feeling that there is not enough saliva in the mouth. Everyone has a dry mouth once in a while—if they are nervous, upset or under stress. But if you have a dry mouth all or most of the time, it can be uncomfortable and can lead to serious health problems. It can also be a sign of certain diseases and conditions. Without enough saliva you can develop tooth decay or other infections in the mouth. You also might not get the nutrients you need if you cannot chew and swallow certain foods. Dry mouth is not a normal part of aging. So if you think you have dry mouth, see your dentist or physician—there are things you can do to get relief. What are the signs and symptoms? ● a sticky, dry feeling in the mouth ● trouble chewing, swallowing, tasting, or speaking ● a burning feeling in the mouth ● a dry feeling in the throat ● cracked lips ● a dry, rough tongue ● mouth sores ● an infection in the mouth The technical term for dry mouth is xerostomia (ZEER-oh-STOH-mee-ah). What causes dry mouth? People get dry mouth when the glands in the mouth that make saliva are not working properly. Because of this, there might not be enough saliva to keep your mouth wet. There are several reasons why these glands (called salivary glands) might not work right. -
BURNING MOUTH SYNDROME? Prescribing a Substitute Medication
FOR THE DENTAL PATIENT ... First, any oral conditions causing the burning Burning mouth sensations should be investigated. For example, if you have dry mouth, your dentist may advise that syndrome you drink more fluids or may suggest saliva- replacement products that can be purchased at a pharmacy. An oral swab or biopsy may be used to urning mouth syndrome is a painful and check for thrush, which is a fungal infection; often frustrating condition. Some patients thrush can be treated with oral antifungal medica- compare it to having burned their mouth tions. Any irritations caused by sharp or broken Bwith hot coffee. teeth or by a removable partial or full denture The burning sensation may affect the tongue, should be eliminated. the roof of the mouth, the gums, the inside of the Other simple measures may help. Eliminate cheeks and the back of the mouth or throat. The mouthwash, chewing gum, tobacco and very acidic condition sometimes is known as “burning tongue liquids (certain fruit juices, soft drinks and coffee) (or lips) syndrome,” “scalded mouth syndrome,” for two weeks to see if there is any improvement. “glossodynia” and “stomatodynia.” Consider trying a different brand of toothpaste (look In addition to the burning sensation, other con- for products with the ADA Seal of Acceptance). ditions—such as a dry or sore mouth or a tingling Look up the side effects of any medications you or numb sensation throughout the mouth and are taking (such as those used to treat high blood tongue—may occur. A bitter or metallic taste also pressure). -
SHARK FACTS There Are 510 Species of Sharks
1 SHARK FACTS There are 510 species of sharks. Let’s learn more about a few of them. Common Six-gilled Thresher Shark Shark • Known for its 10 foot tail • Can grow up to 16 feet long • Stuns and herds fish with its long tail • Has six pairs of gills instead of the average of five • Warm blooded • Has one dorsal fin at the back of its body • Feeds on squid and schooling fish • Also known as cow shark or mud shark • Prefers to stay towards the top of deep bodies • Deep water shark of water Shortfin Great Mako Hammerhead Shark Shark • Bluish gray on top part of body and white on • Eyes are at opposite sides of its rectangular the belly shaped head • Has extremely sharp teeth, that stick out even when • Feeds on crustaceans, octopuses, rays and its mouth is shut small sharks • Feeds on sharks, swordfish and tuna • Usually found around tropical reefs • Jumps high in the air to escape fishing hooks • Can give birth to over 40 pups in one litter • Fastest of all the sharks as it can swim over 30 mph • Has a heigtened sense of electro-reception 2 SHARK FACTS Bull Nurse Shark Shark • Can grow up to 11 feet long and over 200 pounds • Has long, fleshy appendages called barbels that hang below its snout • Gray to brown in color with a white belly • Feeds on crab, lobster, urchins and fish • Feeds on fish, dolphins, sea turtles and other sharks • Usually found near rocky reefs, mudflats • Found in fresh and salt water and sandbars • Aggressive species • Enjoys laying on the ocean floor • Nocturnal animal Great Epaulette White Shark Shark • Can grow -
From Molecules to Mastication: the Development and Evolution of Teeth Andrew H
Advanced Review From molecules to mastication: the development and evolution of teeth Andrew H. Jheon,1,† Kerstin Seidel,1,† Brian Biehs1 and Ophir D. Klein1,2∗ Teeth are unique to vertebrates and have played a central role in their evolution. The molecular pathways and morphogenetic processes involved in tooth development have been the focus of intense investigation over the past few decades, and the tooth is an important model system for many areas of research. Developmental biologists have exploited the clear distinction between the epithelium and the underlying mesenchyme during tooth development to elucidate reciprocal epithelial/mesenchymal interactions during organogenesis. The preservation of teeth in the fossil record makes these organs invaluable for the work of paleontologists, anthropologists, and evolutionary biologists. In addition, with the recent identification and characterization of dental stem cells, teeth have become of interest to the field of regenerative medicine. Here, we review the major research areas and studies in the development and evolution of teeth, including morphogenesis, genetics and signaling, evolution of tooth development, and dental stem cells. © 2012 Wiley Periodicals, Inc. How to cite this article: WIREs Dev Biol 2013, 2:165–182. doi: 10.1002/wdev.63 MORPHOGENESIS AND of natural selection in response to the environmental DEVELOPMENT pressures provided by various types of food (Figure 2). Teeth, or tooth-like structures called odontodes he formation of a head with complex jaws or denticles, are present in all vertebrate groups, Tand networked sensory organs was a central although they have been lost in some lineages. Most innovation in the evolution of vertebrates, allowing fish and reptiles, and many amphibians, possess 1 the shift to an active predatory lifestyle. -
PA Marketplace Glossary of Dental Terms
Glossary of Dental Terms DENTAQUEST Pennsylvania INSURANCE TERMS ACA: The Patient Protection and Affordable Care Act of 2010 (Pub. L. 111-148). For example, if the health insurance or plan’s allowed amount for an office visit is $100 and Adverse determination: means a decision by the Plan you’ve met your deductible, your co- or a representative of the Plan to deny, reduce, or insurance payment of 20% would be $20. modify the availability of any dental care services, The health insurance or plan pays the rest of because your condition failed to meet the require- the allowed amount. ments for coverage based on necessity, appropriate- ness of care, level of care, or effectiveness. Co-payment: A fixed amount (for example, $15) you pay for a covered health care Agreement: refers to the Account Dental Service service, usually when you receive the service. Agreement, a contract between the Plan and the Plan The amount can vary by the type of covered Sponsor that provides benefits for dental services. health care service. The Account Dental Service Agreement includes the Subscriber’s Certificate, Schedule of Benefits, Coverage decision: an initial determination by Group Application, Enrollment Form, rates identified in the Plan, or a representative of the Plan that Attachment A, and any applicable Riders, Endorse- results in noncoverage of a health care ments and Supplemental Agreements. service. Coverage decision includes nonpayment of all or any part of a claim, but Appeal: a protest filed by a Covered Individual or a does not include an adverse determination as health care provider with the Plan under its internal defined above.