DE Anatomy: muscular system Flashcards

1
Q

the name means “straight muscle of the abdomen”

A

rectus abdominis

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2
Q

prime mover for shoulder flexion and adduction

A

pectoralis major

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3
Q

prime mover for shoulder abduction

A

deltoid

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4
Q

part of the abdominal girdle; forms the external lateral walls of the abdomen

A

external oblique

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5
Q

acting alone, each muscle of this pair turns the head toward the opposite shoulder

A

sternocleidomastoid

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6
Q

besides the two abdominal muscles (pairs) named above, two muscle pairs that help form the natural abdominal girdle

A

internal oblique and transversus abdominis

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7
Q

deep muscles of the thorax that promote the inspiratory phase of breathing

A

external intercostal

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8
Q

an unpaired muscle that acts with the muscles named immediately above to accomplish inspiration

A

diaphragm

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9
Q

muscle that allows you to shrug your shoulders or extend your head

A

trapezius

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10
Q

muscle that adducts the shoulder and causes extension of the shoulder joint

A

latissmus dorsi

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11
Q

shoulder muscle that is the antagonist of the muscle just described

A

deltoid

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12
Q

prime mover of back extension; a deep composite muscle consisting of three columns

A

erector spinae

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13
Q

large paired superficial muscle of the lower back

A

latissimus dorsi

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14
Q

fleshy muscle forming part of the posterior abdominal wall that helps maintain upright posture

A

quadratus lumborum

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15
Q

hip flexor, deep in pelvis; a composite of two muscles

A

iliopsoas

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16
Q

used to extend the hip when climbing stairs

A

gluteus maximus

17
Q

“toe dancer’s” muscle; a two-bellied muscle of the calf

A

gastrocnemeus

18
Q

inverts and dorsiflexes the foot

A

tibialis anterior

19
Q

muscle group that allows you to draw your legs to the midline of your body, as when standing at attention

A

adductors

20
Q

muscle group that extends the knee

A

quadriceps

21
Q

muscle group that extends the thigh and flexes the knee

A

hamstrings

22
Q

smaller hip muscle commonly used as an injection site

A

gluteus medius

23
Q

muscle group of the lateral leg; plantar flex and evert the foot

A

fibularis muscles

24
Q

strap like muscle that is a weak thigh flexor; the “tailor’s muscle”

A

sartorius

25
Q

like the two bellied muscle that lies over it, this muscle is a plantar flexor

A

soleus

26
Q

wrist flexor that follows the ulna

A

flexor carpi ulnaris

27
Q

muscle that extends the fingers

A

extensor digitorum

28
Q

muscle that flexes the fingers

A

flexor digitorum superficialis

29
Q

muscle that allows you to bend (flex) the elbow

A

biceps brachii

30
Q

muscles that extend the elbow

A

triceps brachii

31
Q

powerful shoulder abductor, used to raise the arm overhead

A

deltoid