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(Week 5,7)

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
The upper lib consists of the arm (_______), forearm (_______), and hand (_______).   brachium, antebrachium, manus  
___ bones form the skeletal framework of each upper limb.   30  
The _______ is the sole bone of the arm.   humerus  
The humerus articulates with the _______ at the shoulder and the _______ and _______ at the elbow.   scapula, radius, ulna  
The radius and ulna articulate proximally with the _______ and distally with the _______ bones. They also articulate with ____ ____ proximally and distally.   humerus, wrist, each other  
The _______ _______ connects the radius and ulna along their entire length.   interosseous membrane  
The radius lies ______ to the ulna.   lateral  
The ulna lies _______ in the forearm and is slightly longer than the _______.   medially, radius  
The anatomical snuff box is made up of:   extensor pollicis longus (EPL) abductor pollicis longus (AbPL) extensor pollicis brevis (EPB)  
The 8 wrist bones are:   Trapezium, Trapezoid, Capitate, Hamate, Scaphoid, Lunate, Triquetral, Pisiform  
There are ___ metacarpal bones.   5  
The heads of the metacarpal bones articulate with the _______.   phalanges  
The bases of the metacarpal bones articulate with the _______ proximally, and with _____ _____ medially & laterally.   carpals, each other  
Each hand contains ___ phalanges.   14  
The fingers are numbered 1-5, beginning with the _______.   thumb (pollex)  
Each finger (except the thumb) has 3 phalanges - _______, _______, and _______.   distal, middle, proximal  
The thumb has no _______ phalanx.   middle  
Brachialis O.I.A.   O: Anterior distal humerus I: Coranoid process of ulna A: major forearm flexor  
Brachioradialis O.I.A.   O: distal lateral humerus I: styloid process of radius A: synergist of elbow flexion  
The _______ _______ is the prime mover of forearm extension.   triceps brachii  
The _______ and _______ _______ are the chief forearm flexors.   brachialis, biceps brachii  
Anconeus O.I.A.   O: lateral epicondyle of humerus I: olecranon process of ulna A: Controls ulnar abductionduring forearm pronation; synergist of triceps brachii in elbow extension  
The anterior muscles of the forearm are primarily _______ of the wrist and fingers (except pronator quadratus).   flexors  
The anterior muscles of the forearm originate on the _______ _______ of humerus.   medial epicondyle  
Pronator Teres O.I.A.   O: common tendon medial epicondyle of humerus & coronoid process of ulna I: lat mid radius A: pronation @ elbow, weak elbow flexor  
Flexor Carpi Radialis O.I.A.   O: common tendon medial epicondyle of humerus I: base 2nd & 3rd metacarpals A: wrist flexion, weak elbow flexion  
Palmaris longus O.I.A.   O: common tendon medial epicondyle of humerus I: palmar apponeurosis (fascia of palm) A: flexion of wrist, weak flexion of elbow  
Flexor Carpi Ulnaris O.I.A.   O: common tendon medial epicondyle of humerus I: pisiform, hamate, base of 5th metacarpal A: flexion of wrist, weak flexion of elbow  
Flexor Digitorum Superficialis O.I.A.   O: common tendon medial epicondyle of humerus I: {middle phalanges of} fingers 2-5 A: flexion of wrist & fingers 2-5  
Flexor Pollicus Longus O.I.A.   O: ant surface of mid radius, ant ulna {interosseous membrane} I: distal phalanx of thumb A: flexes distal phalanx of thumb (texting)  
Flexor Digitorum Profundus O.I.A.   O: coronoid process of ulna, ant medial ulna {interosseous membrane} I: distal phalanges 2-5 A: flex {terminal} phalanges 2-5  
Pronator Quadratus O.I.A.   O: distal portion anterior ulnar shaft I: distal anterior radius A: PM of forearm pronation, synergist pronator teres  
The muscles of the posterior forearm are primarily _______ of the wrist and fingers.   extensors  
The posterior muscles of the forearm originate on the _______ _______ of humerus.   lateral epicondyle  
Extensor Carpi Radialis Longus O.I.A.   O: lateral supracondylar ridge of humerus I: base 2nd metacarpal A: extension of wrist  
Extensor Carpi Radialis Brevis O.I.A.   O: common extensor tendon lateral epicondyle I: base 3rd metacarpal A: extension and abduction of wrist  
Extensor Digitorum O.I.A.   O: common extensor tendon lateral epicondyle I: {distal} phalanges 2-5 A: PM extension of fingers, extension of wrist  
Extensor Carpi Ulnaris O.I.A.   O: common extensor tendon lateral epicondyle {posterior border ulna} I: base of 5th metacarpal A: extension of wrist w/ ECR, Adduction w/ FCU  
Supinator O.I.A.   O: lateral epicondyle of humerus & proximal ulna I: proximal radius A: supination, assists biceps brachii  
Abductor Pollicis Longus O.I.A.   O: posterior surface mid radius and ulna {& interosseous membrane} I: base of 1st metacarpal {& trapezius} A: Abducts & extends thumb & Abducts wrist  
Extensor Pollicis Longus & Brevis O.I.A.   O: dorsal mid radius (brevis), ulna (longus) & interosseous membrane I: base of phalanx of thumb {proximal=brevis, distal=longus} A: extends thumb (lets something go from hand)  
Extensor Indicis O.I.A.   O: posterior distal ulna & interosseous membrane I: proximal phalanx index finger A: extension of index finger  


   






 
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