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A&P1 Chapter 8 Notes

by: The EIU Scientist

A&P1 Chapter 8 Notes 2210

Marketplace > Eastern Illinois University > Biology > 2210 > A P1 Chapter 8 Notes
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About this Document

This goes over all of the appendicular system
Anatomy and Physiology 1
Dr. Nida Elmuti
Class Notes
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This 3 page Class Notes was uploaded by The EIU Scientist on Wednesday September 21, 2016. The Class Notes belongs to 2210 at Eastern Illinois University taught by Dr. Nida Elmuti in Fall 2016. Since its upload, it has received 4 views. For similar materials see Anatomy and Physiology 1 in Biology at Eastern Illinois University.


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Date Created: 09/21/16
Chapter 8 (Appendicular System) Pectoral Girdle  The Clavicle (Collar Bone)  Long, S-shaped bone  Sternal End- flat, like a stamp, attaches to the manubrium  Acromial end- attaches to the scapula Scapula  Shoulder blades  Broad, flat triangles  Articulate with arm and collarbone  Anterior surface depression is subscapular fossa The Scapulae  Structures of the scapula  Body has three sides 1 Superior border 2 Medical border 3 Lateral border  The body has corners  Superior angle and inferior angle Scapular head which holds the glenoid cavity   This articulates with the humerus Glenoid Cavity  Coracoid process o Anterior, smaller  Acromion o Posterior, larger o Articulates with clavicle o Thicker Scapular spine (posterior)  Ridge across posterior surface of body  Separates two regions  Supraspinous fossa  Infraspinous fosaa Upper Limbs  Consist of : arms, forearms, wrists, and hands (carpels, metacarpals, and phalanges)  Arm (brachium)= 1 bone, the humerus Humerus  Greater Tubercle  Forms tip of shoulder  Lesser Tubercle (for muscle attachment)  Lesser and greater are separated by a groove that allows for arteries Head  Rounded, articulating surface  Contained with joint capsule Anatomical neck  Margin of joint capsule Surgical neck  Narrow metaphysis Distal epiphysis  Medial and lateral epicondyles (For muscles attachment)  Condyle of the humerus (lets the bone rock back and forth)  Articulates the ulna and radius  Trochlea and Capitulum makes up the distal condyle  Coronoid fossa and olecranon fossa- part of the ulna that articulates and makes a joint, lots of nerves run through that  Radial fossa- articulates with radius Forearm (antebrachium) Consists of two long bones   Ulna (medial)  Radius (lateral) Ulna (OTC)  Olecranon- superior end of the ulna and is the point of the elbow  Trochlear notch- superior lip, articulates with trochlea of humerus  Coronoid process- inferior lip of trochlear notch Articulations of the Ulna  Forearm extended- olecranon enters olecranon fossa  Forearm flexed- coronoid process enters coronoid fossa  Radial notch- articulates with the head of radius  Ulnar head- prominent styloid process, attches to articular disc between forearm and wrist Radius  Lateral bone of forearm  Disk-shaped radial head above the neck  Radial tuberosity below the neck, attaches biceps Articulations of the redius  Ulnar notch- distal end, articulates with wrist and ulna  Styloid process- stabilizes wrist joint Carpal Bones  Four proximal carpal bones  Four distal carpal bones These allow wrist to bend and twist  Metacarpal bones  The five long bones of the hands  Numbered 1-5 from lateral (thumb) to medial  Articulate with proximal phalanges Phalanges of the Hands  14 total finger bones Pollex- two phalanges (proximal, distal)   Finger- three phalanges (proximal, middle, distal)


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