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a/p lab
arms and shoulder
| Question | Answer |
|---|---|
| the muscle group of the upper back that originates on cervical vertebrae 7 and thoracic vertebrae 1-5 and acts to adduct the scapula is the _________. | rhomboideus group |
| a ________ is a rounded process of a bone located at an articulation site | head |
| the head of the humerus rests in a depression called the _______ or ________ of the scapula | glenoid cavity; fossa |
| the muscle of the shoulder that originates on the posterior surface of the scapula above the spine is the ___________ | supraspinatus |
| the spine of the scapula forms a large lateral projection called the ________ ________ | acromion process |
| the muscle of the upper back and neck that originates on the occipital bone and the cervical and thoracic vertebrae which acts to shrug the shoulders and rotate the scapula is the __________ | trapezius |
| the feature on the anterior, lateral region of the scapula is called the ________ ________ | coracoid process |
| the muscle of the chest that originates on the first 8-9 ribs and acts to rotate the scapula forward is the ________ _________ | serratus anterior |
| the medial end of the clavicle is also called the _____ ______, and the lateral end of the clavicle is also called the _______ ________ | sternal end; acromial end |
| the muscle of the upper back and neck that inserts on the superior border of the scapula and acts to elevate the scapula is the _________ __________ | levator scapulae |
| the lateral border of the scapula is also called the ______ ________, and the medial border of the scapula is also called the _______ _______ | axillary border; vertebral border |
| the deep muscle of the chest that orginates on ribs 3-5 and inserts on the coracoid process of the scapula is the _______ __________ | pectoralis minor |
| the raised area in the middle of the diaphysis of the humerus is called the ________ __________ | deltiod tubeorsity |
| the muscle of the shoulder which originates on the clavicle and scapula and acts to abduct, flex, and extend the upper arm is the ________. | deltoid |
| small, knob-like processes on bones are called ______ | tubercles |
| on the humerus these are found just distal to the neck of the humerus and are called the ________ and _______ ________ | greater and lesser tubercles |
| the muscle of the shoulder that originates on the coracoid process of the scapula and inserts on the shaft of the humerus is the ______________ | coracobrachialis |
| the ______ fossa is on the anterior surface of the scapula | subscapular |
| the _______ fossa and ____________ fossa are on the posterior surface of the scapula | suprapinous; infraspinous |
| the superficial muscle of the chest that inserts on the intertubercular groove of the humerus and adducts the upper arms is the ________ ________ | pectoralis major |
| moving a body part such that its end following a circular path is called _________. this motion is possible at codylar and ball and socket joints only | circumduction |
| the large muscle of the back that inserts on the intertuberculer groove of the humerus and acts to extend and adduct the upper arm is the ___________ _______ | latissimus dorsi |
| when classified according to shape, the humerus is an example of a _________ bone | long |
| the muscle of the shoulder that originates on the posterior surface of the scapula below the spine is the _______________ | infraspinatus |
| moving a body part away from the midline of the body is called ___________, while moving that body part back toward the midline of the body is called _____________ | abduction; adduction |
| the motions of adduction and abduction is possible at the __________ joint formed between the humerus and scapula | ball and socket |
| the muscle that originates on the anterior surface of the scapula and acts to rotate the upper arm medially is the ___________ | subscapularis |
| all muscles that rotate the upper arm laterally insert on the ____________ tubercle, whereas all muscles that rotate the upper arm medially insert on either the _________ tubercle or on the __________ __________ | greater; lesser; intertubercular groove |
| the teres __________ muscle inserts on the greater tubercle and the teres __________ muscle inserts on the lesser tubercle | minor; major |
| ORIGIN= coracoid process INSERTION= medial surface of the humerus ACTION= flexes, adducts upper arm; rotates upper arm medially | coracobrachialis |
| ORIGN=acromion process and the spine of the scapula, clavicle INSERTION=deltiod tuberosity of humerus ACTION= abducts, flexes, extends upper arm | deltiod |
| ORIGIN= infraspinous fossa INSERTION= greater tubercle of humerus ACTION= extends upper arm; rotates upper arm laterally | infraspinatus |
| ORIGN= spinous process of lower 6 T and all L and S vertebrae, iliac crest, ribs INSERTION= intertubercular sulcus of humerus ACTION= adducts upper arm; rotates arm medially extends, depresses. retracts shoulder | latissimus dorsi |
| ORIGIN= transverse processes of C1-C4 INSERTION= superior medial border of scapula ACTION= elevates scapula | levator scapulae |
| ORIGIN= clavicle, sternum, and ribs 2-6 INSERTION= intertubercular sulcus of humerus ACTION= flexes shoulder, adducts upper arm; rotates upper arm medially | pectoralis major |
| ORIGIN= sternal ends of ribs 3-5 INSERTION= coracoid process of scapula ACTION= depresses and protracts scapula, elevates ribs during forceful breathing | pectoralis minor |
| ORIGIN= spinous processes C7, T1-T5 INSERTION= medial border of scapula ACTION= retracts and elevates scapula | rhomboideus (group) |
| ORIGIN= outer surface of first 8 and 9 ribs INSERTION= ventral surface of scapula ACTION= protracts and rotates scapula | serratus anterior |
| ORIGIN= supraspinous fossa INSERTION= greater tubercle of humerus ACTION= abducts upper arm | supraspinatus |
| ORIGIN= subscapular fossa INSERTION= lesser tubercle of humerus ACTION= extends upper arm, rotates upper arm medially | subscapularis |
| ORIGIN= lateral and medial borders of scapula INSERTION= intertubercular sulcus and lesser tubercle of humerus ACTION= extends shoulder; adducts upper arm; rotates upper arm medially | teres major |
| ORIGIN= lateral and medial borders of scapula INSERTION= greater tubercle of humerus ACTION= rotates upper arm laterally | teres minor |
| ORIGIN= occipital bone, spinous processes of C and T vertebrae INSERTION= spine, acromion process of the scapula; acromial end of the clavicle ACTION= elevates, depresses, retracts, and rotates scapula | trapezius |
Created by:
allijeli
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