CH 7 A&P Study Module

what is the name of the largest carpal bone found in the body?

capitate

the conoid tubercle is on the inferior surface at the acromial end of which bone?

clavicle

which clavicle feature is/are an attachment site(s) for ligaments of the shoulder?

conoid tubercle and costal tuberosity

which clavicle features is/are attachment site(s) for ligaments of the shoulder?

conoid tubercle and costal tuberosity

T/F: the scapular is the only direct connection between the pectoral girdle and the axial skeleton

false

T/F: when medial rotation occurs at the distal radioulnar joint, the ulnar notch rolls across the rounded surface of the ulnar head

false

what is the significance of the glenoid cavity of the scapula?

it is the site at which the scapula articulates with the proximal end of the humerus to form the shoulder joint

which humeral feature marks the insertion point of the subscapularis muscle?

lesser tubercle- lies on anterior and medial surface of the epiphysis; marks the insertion point of the scapular muscle (the subscapularis)

what is the name of the proximal carpal bone located on the lateral border of the wrist adjacent to the styloid process of the radius?

scaphoid bone

which bones are to be considered to be proximal carpal bones?

scaphoid, lunate, triquetrum, pisiform

distal to the tubercles of the humerus is a narrow ____ that corresponds to the metaphysis of the growing bone

surgical neck

which of the following is not true of the humerus? A. the trochlea is the spool-shaped portion of the condyle that articulates with the ulna B. the area of the medial epicondyle is called the "funny bone" because bumping it results in temporary numbness due to the striking of the ulnar nerve C. the capitulum forms the medial surface of the articular condyle D. the articular condyle comprises the distal inferior surface of the humerus

the capitulum forms the medial surface of the articular condyle- false; the capitulum forms the lateral surface of the articular condyle

which bone(s) connects the pectoral girdle to the axial skeleton

the clavicle

which of the following statements regarding the scapula is FALSE? A. the supraglenoid tubercle marks the origin of the long head of the biceps brachii muscle B. the faces of the scapular spine seperate the supraspinatus from the infraspinatus muscle C. the lateral border is also called the axillary border D. the infraglenoid tubercle marks the origin of the lateral head of the triceps brachii muscle

the infragleoid tubercle marks the origin of the lateral head of the triceps brachii muscle- false; infrageloid tubercle marks the origin of the long head of the triceps brachii muscle

which is the following is not true of the radius? A. the medial surface of the distal extremity articulates with the ulnar head at the ulnar notch B. the radial head articulates with the trochlea of the humerus C. only the distal extremity of the radius participates in the wrist joint D. the radial tuberosity marks the attachment site of the biceps brachii muscle

the radial head articulates with the trochlea of the humerus- false

which of the following statements about the pectoral girdle is FALSE? A. the clavicle articulates with the manubrium of the sternum B. the scapula has no direct bony or ligamentous connections to the thoracic cage C. movements of the clavicle and scapula position the shoulder joint and provide a base for arm movement D. the scapula is the only direct connection between the pectoral girdle and the axial skeleton

the scapula is the only direct connection between the pectoral girdle and the axial skeleton- false; the clavicle is the only direct connection between the pectoral girlde and the axial skeleton

which of the following best describes the only direct connection between the pectoral girdle and the axial skeleton? A. the sacro-iliac joint B. the glenohumeral joint C. the acromioclavicular joint D. the sternoclavicular joint

the sternoclavicular joint

T/F: lateral rotation at the radioulnar joints is called supination

true

T/F: medial rotation at the radioulnar joints in turn rotates the wrist and hand medially from the anatomical position

true

T/F: movements of the clavicle and scapula position the shoulder joint and provide a base for arm movement

true

T/F: the clavicle articulates with the manubrium of the sternum

true

T/F: the distal radioulnar joint is formed by the articulation f he medial surface of the distal extremity with the ulnar head at the ulnar notch of the radius

true

T/F: the scapula has no direct bony or ligamentous connections to the thoracic cage

true

the appendicular skeleton contains all of the following except _____ A. pelvic girdle B. femur C. vomer D. humerus

vomer

which of the following statements is NOT true of the ulna? A. the olecranon process of the ulna forms the point of the elbow B. the ulnar head lies at the distal end of the ulna C. when the elbow is flexed (bent), the olecranon fits into the olecranon fossa of the humerus D. the semilunar notch interlocks with the trochlea of the humerus E. in anatomical position, the ulna lies medial to the radius

when the elbow is flexed, the olecranon fits into the olecranon fossa of the humerus- false; when the elbow is extended (straightened), the olecranon projects into the olecranon fossa, but when the elbow is flexed, the coronoid process projects into the coronoid fossa on the anterior humeral surface

which of the following statements regarding the radioulnar joints is false? A. the distal radioulnar joint is formed by the articulation of the medial surface of the distal extremity with the ulnar head at the ulnar notch of the radius B. medial rotation at the radioulnar joints in turn rotates the wrist and hand medially from the anatomical position C. lateral rotation at the radioulnar joints is called supination D. when medial rotation occurs at the distal radioulnar joint, the ulnar notch rolls across the rounded surface of the ulnar head

when the medial rotation occurs at the distal radioulnar joint, the ulnar notch rolls across the rounded surface of the ulnar head- false; when the medial rotation occurs at the proximal radioulnar joint, the ulnar notch of the radius rolls across the rounded surface of the ulnar head

how many bones comprise the appendicular skeleton?

126

which of the following bones is NOT part of the upper limb? A. ulna B. radius C. clavicle D. humerus

C. clavicle