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Anatomy Team Good Luck ;) ANATOMY TEAM GOOD LUCK ;) Bones of the upper limb Anatomy team 432 تنويه : هذه العمل ﻻ يعتبر مرجع أساسي للمذاكره وإنما هو للمراجعه فقط ، السﻻيد هو المرجع اﻻساسي وتم التأكد بأن سﻻيد اﻷوﻻد والبنات موحده باستثناء هالسﻻيد غير موجود عند البنات : Bone Surface Feature Function Articulation Fractures Clavicle Superior: -Long bone - Keeping the -Medially: with Junction of middle Smooth -No bone marrow UL and scapula manubrium and lateral third. Inferior: Rough away from the "Sternoclavicula Most common in "ligaments bind -Media(sternal): trunk r joint" children to the 1st rib 2/3 convex, ends -Transmit -Lateral: with in a triangle and forces from UL scapula enlarged shape to axial "Acromioclavicul -Protect the ar joint" Lateral(Acromial): neurovascular -Inferiorly: with 1/3 concave, ends st by forming a the 1 rib in flat shape boundary "Costoclavicular joint" Scapula -Convex Triangular, flat -Attachment to _ The scapula is well posterior: 3 processes: muscles protected by the Supraspinous -Spine(thick ridge, -Glenoid cavity muscles and by its Fossa, continue laterally) forms the association with the Infraspinous -Acromion socket of the thoracic wall. Most fossa (Subcutaneous shoulder joint. fracture happens in -Concave point of shoulder) - Has a Acromion Anterior: -Coracoid(Like a suprascapular Subcapular bent finger notch: nerve fossa pointing to the passage, -Starts from the shoulder) medial to 2nd to the 7th rib 3 borders: coracoid -Superior -Medial -Lateral (thickest) 3 angles: -Superior -Lateral(glenoid cavity) -Inferior Humerus Proximal, shaft, Long bone, largest — Head: In surgical Neck, Distal in the UL articulates with especially in the -Proximal end: glenoid cavity elderly people with Head Trochlea: osteoporosis: Affects Neck: (Anatomical, articulates with the Axillary Nerve Surgical) Ulna In young people Greater tubercle: Capitulum: fracture happens in Lateral Articulates with the Greater tubercle. Lesser tubercle: radius anteriorly. Both -Fracture positions are separated by that affect certain intertubercular nerves: groove. Radial groove: Radial -Shaft: Deltoid nerve tuberosity, Spiral Distal end: Medial groove. nerve -Distal end: Medial epicondyle: الي يعطي "Ulna nerve ,"كوع"Medial اﻻحساس بالكهرباء عند Lateral epicondyle الخبط" Trochlea Capitulum Coronoid fossa Radial fossa Olecranon fossa Ulna 3 Surfaces: Stabilizing bone of _ Trochlear notch: _ Anterior, Medial, the forearm. Articulate with And Posterior. Medial, longer trochlea of than radius. Humerus Proximal, Shaft, distal Proximal end: Head of Styloid: Olecranon process: Articulation Projects posterior between Ulna Coronoid process: and Humerus at Projects anteriorly the elbow joint Tuberosity of ulna: inferior to coronoid process. Trochlear, Radial notch "lateral to coronoid process". Shaft: thick, cylindrical. Diminishes inferiorly Distal end: Styloid process "Medial" شكلو زي الكعب Radius Anterior, Shorter, lateral. _ _ Colle's fracture: Posterior, Lateral Proximal end: fracture of the distal Surface. Head end of radius. Upper surface of Neck More common in the head is Radial(Biciptal) Woman after middle concave Tuberosity age because of "Medially" osteoporosis. Shaft: It usual heals fast Lateral convexity, because of the rich Enlarges distally blood supply to the Distal end: distal end of the Rectangular radius. Ulnar notch Raidal styloid process Dorsal tubercle. Carpus The carpus 8 Carpal bones. Gives flexibility _ Most common: presents Start lateraly to the wrist Scaphoid. Healing concavity on takes months due to their anterior its low blood supply surface and convex from side to side posteriorly Metacarpus Has base, shaft 5 metacarpal _ The distal head: _ and head bones. articulates with Is numbered the proximal laterally; 1 is the phalanges to thumb form the -1st metacarpal: knuckles short and most Base of mobile metacarpal: -3rd metacarpal: articulate with has a styloid the carpal process laterally bones to the base Digitis (Phalanges) Base Each digit has 3 _ _ _ "proximally", phalanges except body the thumb '2' head "distally". Proximal phalanx is the largest, distal are the smallest with flat ends to form nails. Bases of the Metacarpal bones articulate with the distal row of the carpal bones Carpometacarpal joints The distal end "Head" articulate with the Proximal Phalanges to form (knuckles) Metacarpophalangeal joints The phalanges articulate with each other Interphalangeal joints Distal end of Radius with the Proximal Raw of Carpal bones Wrist joint Carpal bones: Scaphoid, Lunate, Triquetral ,Pisiform ,Trapezium , Trapezoid, Capitate ,Hamate She Looks Too Pretty, Try To Catch Her سوسو لمّا تلعب بوكر ، تكسب تخسر كلي هيسه ثالث حرف هو الـ In the Proximal end: Triquetral i ثالث حرف في الكلمتين هو In the distal end: Trapezium , Trapezoid a Before start , you should to know the meaning of these terms: Projection or Prominence General Process (نتوئات)on a Bone Large, rounded articular Condyle process Smooth, flat surface Facet Processes that helps to form joints Enlarged portion at an end Head of a bone Ramus Branch or extension of a bone Crest Narrow ridge Epicondyle Linea Process on or above a (line) condyle Narrow ridge (less prominent than a crest) Processes that provide for the Sharp or pointed process Spine (spinous process) attachment of muscles and ligaments Large, irregularly shaped process (found only on the Trochanter femur) Tubercle Small, knoblike process Tuberosity Large, knoblike process Narrow opening Fissure Membrane-covered spaces Fontanel Depressions or openings (may between skull bones provide passageways for blood Foramen vessels and nerves) Round opening Fossa Please see this link: Shallow depression Fovea http://quizlet.com/2804897/surface-markings-of-bones-lab-4- Pit-like depression flash-cards/ Meatus Tube-like passage Sinus Interior cavity Sulcus"groove" Long, narrow depression Important notes :- Clavicle doesn't have bone marrow The Acromion in the scapula is the only subcutaneous part in scapula يكون مكان The surgical neck in humerus is a narrow part distal to the tubercles و ضيق وسميت كذا عشان أكثز مكان ينكسز عند الكبار أما الصغار فأكثز مكان ينكسز عندهم هو greater tubercle Most of the fractures of the scapula involve the protruding subcutaneous Acromin The upper surface of the radius head is concave for articulation with the capitulum The typical history of the fracture in radius & ulna includes slipping مجموعه من المواقع المفيده في هذا البلوك : http://www.lifehugger.com/musculoskeletal-system http://www.funtrivia.com/playquiz/quiz117847d7fdd0.htm http://www.funtrivia.com/newflash/trivia.cfm?qid=164065 http://www.medicalmnemonics.com/cgi-bin/browse.cfm http://www.getbodysmart.com/ap/muscularsystem/menu/menu.html http://www.getbodysmart.com/ap/muscletissue/menu/menu.html REVIEW: -What is the function of the pectoral girdle? Gives the upper limb free movement + rigid support to keep scapula and upper limb away from trunk + provide attachment for muscles -Which part of the scapula bone Articulates with humerus? Head of the humerus articulate with the glenoid cavity of the scapula form the Shoulder joint. What we called the groove that separated the Greater & Lesser tubercles of Arm (Humerus) ? Intertubercular Groove. -Which bone in the upper limb lying horizontally? Clavicle and it is the only horizontal bone. -How many surfaces does the shaft of Clavicle has? Mention them? It has two surfaces Superior "smooth" and Inferior "rough" , The Inferior surface shows Conoid tubercle and Trapezoid line. What is the weakest part in the clavicle? It is the junction of the medial and lateral thirds What is the thickest border in scapula? The axillary border or "lateral border" is the thickest part. How many Fossa does scapula has? Three (Supraspinous Fossa, Infraspinous Fossa and Subscapular Fossa) What do we call the Fossae in the anterior concave surface of Scapula? Subscapular Fossa What is the function of Anatomical neck in humerus? Separate the head from the tubercles. Why the Spiral groove is also called the Radial groove? Because of the radial nerve and vessels that passes through it What is the name of the membrane which ties the shafts of the radius and ulna together? Interosseous membrane - How many arrangement do we have in the carpal bones? Two, Proximal and distal. What are the prominent features of the shaft in humerus? Deltoid tuberosity (visible in the posterior and anterior side), and Spiral (Radial) groove(only visible in the posterior side) Which Nerve is affected in fractures of surgical neck of humerus? Axillary nerve Where is the head of ulna located? In the distal end while the head of radius in the proximal end. Where is the Ulnar Notch? In the distal end of radius. What is the most common fracture of forearm? Colle’ s Fracture How many parts in the hand? Three, wrist (carpal), Palm (metacarpal) and fingers (phalanges) What is the largest carpal and what is the part is most commonly fractured? The largest carpal is Capitate and the most commonly part fractured is Scaphoid QUIZ: 1- Transmits forces from the upper limb to the axial skeleton: A- Humerus B- Clavicle C- Ulna D- Radius 2- Which surface of clavicle show Conoid tubercle and Trapezoid line: A- Inferior B- Anterior C- Posterior D- Superior 3- The clavicle articulate…….at the sternoclavicular joint: A- Medially, with the Acromial end of the scapula B- Laterally, with the Acromial end of the scapula C- Laterally, with the Manubrium of sternum D- Medially, with the Manubrium of sternum 4- After Fractures of the Clavicle: A- medial elevated, lateral
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