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63 Cards in this Set

  • Front
  • Back
The long head of biceps bracii originates where?
above the glenoid cavity of the scapula
the short head of the biceps bracii originates where?
from the coracoid process of the scapula
Name the three muscles that originate on the coracoid process.
1. Pectoralis minor
2. short head of biceps bracii
3. coracobrachialis
Name the prime mover of the forearm flexors.
Brachialis
Name the 3 forearm flexor muscles.
1. biceps brachii
2. brachialis
3. brachioradialis
Where is the insertion of the brachialis?
a. radial tuberosity
b. ulnar tuberosity
c. styloid process
d. olecranon
B. Ulnar tuberosity
What flexor muscle originates on the lateral epicondile of the humerus?
a. biceps brachii
b. brachialis
c. brachioradialis
d. anconeus
C. Brachioradialis
where is the insertion of the brachioradialis?
a. radial tuberosity
b. ulnar tuberosity
c. styloid process of radius
d. olecranon
C. Styloid process of the radius
Why is the intertubercle sulcus also known as the bicipital groove?
a. because the biceps brachii inserts there
b. because the short head of the biceps brachii originates there
c. because the long head of the biceps brachii slides through here to get to its insertion
d. because it was discovered by hubert bicipton
C. Because the long head of biceps brachii slides throught the bicipital groove to get to the radial tuberosity, where it inserts.
What is the primary action of the biceps brachii, the brachialis, and the brachioradialis?
a. flex
b. extend
c. pronate
d. supinate
A. flex
Where does the long head of the triceps brachii originate?
Inferior to the glenoid cavity (infraglenoid tubercle)
Where does the lateral head of the triceps brachii originate?
lateral/posterior surface of humerus
Where does the medial head of the triceps brachii originate?
entire posterior surface of humerus
where does the triceps brachii insert?
Olecranon of ulna
What is the action of the triceps brachii?
extends forearm
What is the nerve innervation for the biceps brachii and the brachialis?
Musculocutaneous
What is the nerve innervation for the brachioradialis?
a. musculocutaneous
b. radial
c. median
d. ulnar
B. radial
What is the nerve innervation for the extensor muscles?
radial nerve
Where does the anconeus muscle originate?
lateral epicondyle of the humerus
Where does the anconeus insert?
olecranon and superior portion of ulna shaft
What pronator muscle originates on the medial epicondyle of the humerus?
Pronator teres
Where does the pronator quadratus originate?
distal portion of the ulnar shaft
where does the pronator quadratus insert?
distal portion of the radial shaft
What muscle forms a strap across the wrist?
pronator quadratus
What is the nerve innervation for both of the pronator muscles?
median nerve
What muscle originates on the lateral epicondyle of the humerus and inserts on the lateral surface of the radius?
Supinator
what is the nerve innervation for the supinator muscle?
radial nerve
Where do all of the flexor muscles of the wrist, hand and digits originate?
Medial epicondyle of the humerus
Where do all of the extensor muscles of the wrist, hand and digits originate?
Lateral epicondyle of the humerus
What is the nerve innervation for ALL the extensors of the wrist, hand and digits?
radial nerve
What is the nerve innervation for all of the flexors of the wrist, hand , and digits (except for the flexor carpi ulnaris)?
Median
What is the nerve innervation for the flexor carpi ulnaris?
Ulnar nerve
the Flexor digitorum profundus has 2 nerve innervations. What are they?
Median and ulnar
In what compartment of the forearm will you find the muscles that move the digits?
a. anterior
b. posterior
c. proximal
d. distal
A. anterior
Where does the flexor carpi unlaris insert?
ulnar border of wrist
What is the action of the flexor carpi radialis?
flexes and ABducts hand at wrist
what is the action of the palmaris longus?
weakly flexes hand
which muscle flexes and ADducts hand at wirst?
Flexor carpi ulnaris
What is the action od the flexor digitorum superficialis?
Flexes middles phalanx of each finger
what is the action of the flexor pollicis longus?
flexes distal phalanx of thumb
n/a
n/a
n/a
n/a
which muscle flexes and ADducts hand at wirst?
Flexor carpi ulnaris
na
na
na
na
what is the action of the flexor digitorum profundus?
flexes distal and middle phalanges
What two muscles extend and ABduct the hand?
1. extensor carpi radialis longus
2. extensor carpi radialis brevis
What is the action of the extensor digitorum?
extends phalanges
what muscle extends the little finger?
Extensor Digiti minimi
What muscle extends and ADducts the hand at the wrist?
extensor carpi ulnaris
What is the action of the abductor pollicis longus?
ABducts and axtends thumb and abducts hand
What is the action of extensor pollicis brevis?
extends PROXIMAL phalanx of thumb
What muscle extends the distal phalanx of the thumb?
Extensor pollicis longus
What muscle extends the index finger?
Extensor Indicis
The flexor retinaculum and the extensor retinaculum are also known as what?
Transverse and dorsi carpi ligaments
What are the fibrous bands of thickened deep fascia, which are located at the wrist, called?
The flexor and extensor retinaculum
what passes through the flexor retinaculum?
Long flexor tendons and the median nerve
What are the 3 groups od intrinsic muscles of the hand divided into?
Thenar, hypothenar and intermediate
What is the name of the rounded contour under the thumb?
Thenar eminence
What do the muscles that act on the little finger form?
hypothenar eminence
Which are movements of the thumb?
a. flexion b.extension c.abduction d. pronation e. opposition f. adduction g. supination h. circumduction
a.flexion, b. extension, c. abduction, e. opposition, f. adduction
A narrow passageway formed anteriorly by the flexor retinaculum and posteriorly by the carpal bones is
a. transverse carpi ligaments
b. flexor carpi radialis
c. carpal tunnel
d. thenar eminence
C. Carpal tunnel
A problem resulting in compression of the median nerve that leads to sensory changes over the lateral side of the hand and muscle weakness in the thenar eminence is?
a. carpal tunnel
b. hypothenar eminence
c. hypothenarosis
d. median nerve syndrome
A. carpal tunnel