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From Flashcardlet > A&P Lab Exercise 11 A > Flashcards

A&P Lab Exercise 11 A Flashcards

1
Q

What is the origin of a muscle?

A

The relatively fixed end of the muscle

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2
Q

What is the insertion of the muscle?

A

The end of the muscle attached to the bone that moves

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3
Q

What happens to the connected bones when a muscle contracts?

A

The muscle pulls one bone towards the other bone

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4
Q

What is the prime mover? What is another name for it?

A

The agonist is the muscle producing the major movement

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5
Q

What is the synergist?

A

The muscle that works with the prime mover to aid its action

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6
Q

What is the antagonist?

A

The muscle that moves the same bone in an opposite direction

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7
Q

What is flexon?

A

Bending at a joint

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8
Q

What is extension?

A

Extending or straightening a limb after flexon

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9
Q

What is abduction?

A

Moving a bone away from the midline of the body

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10
Q

What is adduction?

A

Moving a bone towards the midline of the body

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11
Q

What is elevation?

A

Moving upwards

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12
Q

What is depression?

A

Moving downwards

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13
Q

What is rotation?

A

Moving a bone along its long axis

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14
Q

What is supination?

A

Moving the palm upward

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15
Q

What is pronation?

A

Moving the palm downwards

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16
Q

A

A

Frontalis

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17
Q

B

A

Orbicularis oculi

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18
Q

C

A

Orbicularis oris

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19
Q

D

A

Temporalis

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20
Q

E

A

Masseter

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21
Q

F

A

Sternocleidomastoid

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22
Q

G

A

Trapezius

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23
Q

H

A

Occipitalis

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24
Q

What is the origin of the frontalis?

A

Aponeurosis

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25
Q

What is the insertion of the frontalis?

A

Skin of the eybrow

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26
Q

What is the action of the frontalis?

A

Raises eyebrow

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27
Q

What is the origin of the orbicularis oculi?

A

Frontal bone and maxilla

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28
Q

What is the insertion of the obicularis oculi?

A

Skin around the eye

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29
Q

What is the action of the obicularis oculi?

A

Closes eye

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30
Q

What is the origin of the orbicularis oris?

A

Muslces near mouth

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31
Q

What is the insertion of the obicularis oris?

A

Skin at corner of mouth

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32
Q

What is the action of the obicularis oris?

A

Closes mouth

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33
Q

What is the origin of the masseter?

A

Zygomatic arch

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34
Q

What is the insertion of the masseter?

A

Mandible

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35
Q

What is the action of the masseter?

A

Raises mandible

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36
Q

What is the origin of the temporalis?

A

Temporal bone

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37
Q

What is the insertion of the temporalis?

A

Mandible

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38
Q

What is the action of the temporalis?

A

Raises mandible

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39
Q

What is the origin of the sternocleidomastoid?

A

Sternum and clavicle

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40
Q

What is the insertion of the sternocleidomastoid?

A

Mastoid process of the temporal bone

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41
Q

What is the action of the sternocleidomastoid?

A

When both contract, flex head to chest

When one contracts, head rotates

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42
Q

What happens when the right sternocleidomastoid contracts?

A

Head turns to the left or tilts to the right

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43
Q

I

A

Orbiularis oculi

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44
Q

J

A

Orbicularis oris

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45
Q

K

A

Sternocleidomastoid

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46
Q

L

A

Temporalis

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47
Q

M

A

Frontalis

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48
Q

1

A

External oblique

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49
Q

2

A

Internal oblique

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50
Q

3

A

Transverse abdominis

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51
Q

4, 44

A

Rectus abdominis, linea alba

52
Q

Which layer of the abdomen is the deepest?

A

Transverse abdominis

53
Q

What is the origin of the rectus abdominis?

A

Pubis

54
Q

What is the insertion of the rectus abdominis?

A

Costal cartilages (5-7), xiphoid

55
Q

What is the action of the rectus abdominis?

A

Compresses abdomen, flexes vertebral column (bend forward)

56
Q

What is the origin of the external oblique?

A

Lower 8 ribs

57
Q

What is the insertion of the external oblique?

A

Illiac crest, linea alba

58
Q

What is the action of the external oblique?

A

Both contract, compresses abdomen

One contracts, vertebral column flexes to the side

59
Q

What is the origin of the internal oblique?

A

Illiac crest, lumbar fascia

60
Q

What is the insertion of the internal oblique?

A

Costal cartilages (of last 3 or 4 ribs), linea alba

61
Q

What is the action of the internal oblique?

A

Both contract, compresses abdomen

One contracts, vertebral column flexes to the side

62
Q

What is the origin of the tranverse abdominis?

A

Illiac crest, lumbar fascia, cartilages of last 6 ribs

63
Q

What is the insertion of the tranverse abdominis?

A

Xiphoid process, linea alba, pubis

64
Q

What is the action of the tranverse abdominis?

A

Compresses abdomen

65
Q

N

A

Trapezius

66
Q

O

A

Deltoid

67
Q

P

A

Bisceps brachii

68
Q

PP

A

Pectoralis major

69
Q

Q

A

Pectoralis minor

70
Q

R

A

Serratus anterior

71
Q

S

A

Trapezius

72
Q

T

A

Latissimus dorsi

73
Q

U

A

Supraspinatus

74
Q

V

A

Infraspinatus

75
Q

W

A

Teres minor

76
Q

X

A

Teres major

77
Q

Y

A

Rhomboideus major

78
Q

Z

A

Rhomboideus minor

79
Q

What is the origin of the trapezius?

A

Occipital bone, vertebral spine

80
Q

What is the insertion of the trapezius?

A

Clavicle, scapula

81
Q

What is the action of the trapezius?

A

Elevates clavicle
Adducts scapula
Extends head

82
Q

What is the origin of the rhomboideus major?

A

Vertebral spine

83
Q

What is the insertion of the rhomboideus major?

A

Scapula

84
Q

What is the action of the rhomboideus major?

A

Adducts scapula and rotates it downward

85
Q

What is the origin of the pectoralis minor?

A

Ribs (3-5)

86
Q

What is the insertion of the pectoralis minor?

A

Corocoid of scapula

87
Q

What is the action of the pectoralis minor?

A

Depresses and moves scapula anteriorly

Expands ribs

88
Q

What is the origin of the serratus anterior?

A

Ribs

89
Q

What is the insertion of the serratus anterior?

A

Scapula

90
Q

What is the action of the serratus anterior?

A

Rotates scapula upward and laterally

91
Q

What is the origin of the pectoralis major?

A

Sternum, clavicle

92
Q

What is the insertion of the pectoralis major?

A

Humerus

93
Q

What is the action of the pectoralis major?

A

Flexes and adducts arms

94
Q

What is the origin of the teres major?

A

Scapula

95
Q

What is the insertion of the teres major?

A

Humerus

96
Q

What is the action of the teres major?

A

Extends arm and rotates it medially

97
Q

What is the origin of the latissimus dorsi?

A

Ribs, lower six vertebral spines

98
Q

What is the insertion of the latissimus dorsi?

A

Humerus

99
Q

What is the action of the latissimus dorsi?

A

Adducts and extends arm back

100
Q

What is the origin of the deltoid?

A

Clavicle, scapula

101
Q

What is the insertion of the deltoid?

A

Humerus

102
Q

What is the action of the deltoid?

A

Abducts, flexes, and extends the arm

103
Q

What landmark does the deltoid attach to at its insertion?

A

The deltoid tuberosity of the humerus

104
Q

What are the four muscles making up the rotator cuff?

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

105
Q

5

A

Pectoralis major

106
Q

6

A

Deltoid

107
Q

7

A

Biceps brachii

108
Q

8

A

Brachialis

109
Q

9

A

Triceps brachii

110
Q

10

A

Brachioradialis

111
Q

What is the origin of the biceps brachii?

A

Scapula

112
Q

What is the insertion of the biceps brachii?

A

Radius

113
Q

What is the action of the biceps brachii?

A

Flexes forearm and supination of palm

114
Q

What is the origin of the brachialis?

A

Humerus

115
Q

What is the insertion of the brachialis?

A

Ulna

116
Q

What is the action of the brachialis?

A

Flexes forearm

117
Q

What is the origin of the brachioradialis?

A

Humerus

118
Q

What is the insertion of the brachioradialis?

A

Radius

119
Q

What is the action of the brachioradialis?

A

Flexes forearm

120
Q

What is the origin of the triceps brachii?

A

Scapula, humerus

121
Q

What is the insertion of the triceps brachii?

A

Olecranon of ulna

122
Q

What is the action of the triceps brachii?

A

Extends forearm, extends arm

123
Q

What is the brachioradialis?

A

The fleshy part of the forearm

124
Q

Where do the wrist and finger flexors originate?

A

The medial epicondyle

125
Q

Where do the wrist and finger extensors originate?

A

The lateral epicondyle

126
Q

Are the wrist and finger flexors ventral or dorsal?

A

Ventral

127
Q

Are the wrist and finger extensors ventral or dorsal?

A

Dorsal

From Flashcardlet (133 decks)

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