EXS 310 Final Exam 3
The elbow is a hinge type joint that allows only internal and external rotations T/F
False
The extensor digiti minimi is innervated by the radial nerve (C6-C8)T/F
False
Which of the following muscles performs adduction of the wrist?
Flexor carpi ulnaris
Which of the following is the origin of the palmaris longus?
Medial Epicondyle of the humerus
The ulnar collateral ligament is critical to providing medial support prevent the elbow from abducting when stressed in physical activity T/F
true
The insertion of the brachialis is on the coracoid process of the radius T/F
False
Carpal tunnel syndrome is a condition in which there is an increased pressure in the carpal tunnel, which interferes with normal function of the median curve T/F
True
The extensor carpi ulnaris and the flexor carpi ulnaris are the only muscles involved in ulnar deviation (abduction) T/F
True
The flexor digitorum superficialis and the flexor digitorum profundus are finger flexors, and the flexor pollicis longus is a thumb flexor T/F
True
The pronator teres originates from the distal part of the medial supracondylar ridge of the humerus and the medial side of the proximal ulna T/F
True
The triceps brachii muscle inserts on the olecranon process of the ulna T/F
True
The wrist flexor muscles have their origin on the medial epicondyle of the humerus T/F
True
To stretch the flexor carpi ulnaris, the elbow must be fully extended with the forearm supinated while a partner passively extends and abducts the wrist T/F
True
Wrist joint actions include flexion, extension, abduction, and adduction T/F
True
the pronator teres is innervated by the median nerve (C6, C7) T/F
True
Actions of the brachioradialis muscle include all of the following except
Weak flexion of the elbow
The supinator originates from the
lateral epicondyle of the humerus and neighboring posterior part of the ulna
As elbow reaches full extension, olecranon process is received by the olecranon fossa of the humerus, and this provides joint stability T/F
true
The extensor digitorum is the only muscle involved in extension of all four fingers T/F
True
A movement of the forearm away from the shoulder is best described by the term "flexion" T/F
False
Each finger has three interphalangeal joints, where the thumb has only two T/F
False
In the context of wrist and hand movements, radial flexion (abduction) refers to the movement of the thumb side of the hand toward the medial aspect or ulnar side of the forearm T/F
False
The insertion of the brachioradialis is on the styloid process of the ulna T/F
False
The lateral supracondylar ridge is an anatomical landmark located on the ulna T/F
False
Which of the following is the only muscle that flexes the finger distal interphalangeal joint (DIP)?
Flexor digitorum profundus
Which of the following muscles does not perform wrist extensions?
Flexor pollicis longus
Which of the following muscles performs flexion of the thumb?
Flexor pollicis longus
Which of the following is an action of the biceps brachii?
Horizontal adduction of the shoulder joint
Which of the following is the insertion of the flexor digitorum profundus?
The base of the distal phalanges of the four fingers
Which of the following is the insertion of the extensor carpi ulnaris?
The base of the fifth metacarpal on the dorsal surface
The insertion of the biceps brachii muscle is on the radial tuberosity T/F
True
The three wrist flexors, from medial to lateral, are the flexor carpi ulnaris, palmaris longus, and flexor carpi radialis T/F
True
The flexor pollicis longus inserts on the base of the distal phalanx of the thumb on the palmar surface T/F
true
Which of the following muscles performs abduction of the thumb?
Abductor pollicis longus
Which of the following muscles performs action in the frontal plane?
Abductor pollicis longus
Radioulnar supination os performed by all of the following muscles except the:
Anconeous
The chief function of the _____________ is to pull the synovial membrane of the elbow joint out of the way of the advancing olecranon process during extension of the elbow
Anconeous
Which of the following is a posterior upper extremity muscle?
Anconeus
Radioulnar pronation of performed by all the of the following muscles except the:
Brachialis
Which of the following elbow flexors acts in "true flexion of the elbow"?
Brachialis
Which of the following muscles is involved in both pronation and supination
Brachioradialis
Which of the following is the primary function of the extensor digiti minimi?
Extension of the little finger of at the metacarpal joint
Which of the following is the primary function of the extensor pollicis longus?
Extension of the thumb
Which of the following muscles performs abduction of the wrist?
Extensor carpi radialis longus
Which of the following muscles inserts on the four tendons to bases of the middle and distal phalanges of the four fingers on the dorsal surfaces?
Extensor digitorum
Which of the following muscles originates on the lateral epicondyle of the humerus?
Extensor digitorum
Which of the following is the "pointing muscle" that originates between and distal one-third of the posterior ulna?
Extensor indicis
Which of the following is the origin of the flexor carpi muscle?
Medial epicondyle of the humerus
The pronator teres inserts on the:
Middle third of the lateral surface of the radius
Which muscle below does not perform flexion at the elbow?
Pronator quadratus
Which of the following is the origin of the flexor digitorum profundus?
Proximal three-fourths of the anterior and medial ulna
Flexion of the elbow occurs in the _______ plane of motion, and supination of the forearm occurs in the _________ plane of motion
Sagittal, transverse
In the context of radioulnar joint movements, which of the following terms refers to the external rotary movement of the radius on the ulna that results in the hand moving from the palm-down position to the palm-up position?
Supination
Which of the following is the insertion of the extensor carpi radialis longus?
The base of the second metacarpal on the dorsal surface
Which of the following is the insertion of the extensor carpi radialis brevis?
The base of the third metacarpal on the dorsal surface
Provide a strengthening activity for each of the following muscles:
Triceps brachii - dips Flexor carpi radialis or flexor carpi ulnaris - wrist curls with weight Flexor digitorum superficialis or flexor digitorum profundus - squeezing a tennis ball
In the context of wrist and hand movements, opposition refers to the movement of the thumb across the palmar aspect to oppose any or all of the phalanges T/F
True
One head of the biceps brachii muscle originates from the supraglenoid tubercle of the scapula T/F
True
Positioning the forearm in pronation decreases the effectiveness of the biceps brachii T/F
True
The long head of the triceps brachii originates from the:
infraglenoid tubercle of the scapula
The radial nerve innervates all of the following muscles except:
pronator teres
List all eight carpal bones
scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
