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Anatomy > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q 
Which muscle type is mononucleated?
A. cardiac muscle
B. skeletal muscle
C. smooth muscle
D. A and B only
E. A and C only
A

E. A and C only

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2
Q

Which cell shape is short, branched and cylindrical?

A

cardiac muscle

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3
Q

Which muscle type would be found attached to the radius?

A

skeletal muscle

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4
Q

Which muscle type is voluntarily controlled?

A

skeletal muscle

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5
Q

A sarcomere extends from

A

one Z disk to an adjacent Z disck

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6
Q

The sarcoplasmic reticulum

A

retakes calcium from the myofibrils to relax the contraction of sarcomeres

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7
Q

During muscle contraction which area of the sarcomere disappears?

A

I band and H zone

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8
Q

I bands are

A

The light cross stripes seen within striated muscle

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9
Q

A muscle fiber is

A

a contracting unit of fasciculus

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10
Q

The actin proteins are

A

contractile protein molecules of the thin filament

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11
Q

The endomysium surrounds

A

a muscle fiber

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12
Q 
A fasciculus
A. is a bundle of muscle fibers
B. is held together by perimysium
C. can be seen without the aid of a microscope
D. A and B are both correct
E. A, B and C are all correct
A

E. A, B and C are all correct

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13
Q

An antagonist is a muscle that

A

works in opposition to the prime mover

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14
Q

What substance triggers the shortening action between the myofilaments?

A

calcium

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15
Q

Which of these muscles is named for its location?

A

extensor carpi ulnaris

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16
Q 
Which of the following muscles is named for its shape?
A. pectoralis major
B. deltoid
C. flexor carpi radialis
D. coracobrachialis
E. triceps brachii
A

B. deltoid

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17
Q 
Which of the following bones has a head?
A. scapula
B. clavicle
C. 1st metacarpal
D. ulna
E. hamate
A

D. ulna

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18
Q 
Which of the following carpals articulates with the 1st metacarpal?
A. Hamate
B. trapezium
C. Triquetrum
D. scaphoid
E. pisiform
A

B. trapezium

19
Q 
Which of the following articulates with the head of the radius? 
A. capitulum
B. lateral epicondyle
C. trochlea
D. medial epicondyle
E. olecranon fossa
A

A. capitulum

20
Q

A styloid process is present on the

A

radius

21
Q

The trochlea is present on the

A

distal humerus

22
Q

The lateral epicondyle is known as the

A

common extensor origin

23
Q

Where is the supraspinous fossa found on the scapula?

A

posterior and superior

24
Q

Part of the carpal tunnel is formed by the raised pisiform bone as it rests on the

A

triquetrum

25
Q

How many phalanges in the fifth finger of the hand?

A

3

26
Q

The lateral bone of the forearm is the

A

radius

27
Q

What type of joint is formed between the phalanges and metacarpals?

A

synovial elipsoid

28
Q

What type of joint is the radiohumeral?

A

a synovial pivot joint

29
Q

What is the only skeletal articulation between the upper limb and the torso?

A

sternoclavicular joint

30
Q

What is the name of the only fibrous joint in the upper limb?

A

radioulnar joint

31
Q

Where would you find the cubital joint?

A

between the humerus and the ulna

32
Q

Which artery is located on the medial side of the antebrachium?

A

ulnar

33
Q

Which artery does the axillary become as it continues into the arm?

A

brachial

34
Q

Which superficial vein draws blood from the radial side of the antebrachium?

A

cephalic

35
Q

Name the deep vein of the upper arm

A

brachial

36
Q

The axillary nerve innervates which of the following muscles?

A

deltoid and teres minor

37
Q

How many cords does the brachial plexus form?

A

3: medial, lateral and posterior

38
Q

Which nerves innervate the muscles in the anterior compartment of the forearm?

A

median and ulnar

39
Q

From which cord do the musculocutaneous and median nerve arise?

A

lateral cord

40
Q

Which nerve innervates the rhomboid minor muscle?

A

dorsal scapular

41
Q

From which cord does the axillary nerve arise?

A

posterior cord

42
Q

Which nerve innervates the subcapularis muscle?

A

subscapular

43
Q

Which nerve innervates the extensor carpi radialis longus muscle?

A

radial

Anatomy (59 decks)

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