muscles Flashcards

1
Q

raise eyebrows, wrinkle forehead

A

frontalis

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2
Q

pulls scalp posteriorly

A

occipitalis

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3
Q

close eyes, wink, squint, blink

A

occularis oculi

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4
Q

protrude lips, open and close mouth

A

occularis oris

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5
Q

chewing muscle

A

buccinator

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6
Q

smiling muscle

A

zygomaticus

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7
Q

closes mouth by pulling jaw up

A

masseter

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8
Q

synergist to the masseter

A

temporalis

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9
Q

neck muscle, lets you frown

A

platysma

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10
Q

neck muscle, lets you bow your head

A

sternocleidomastoid

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11
Q

covers upper part of the chest, adduct and flex the arm

A

pectoralis major

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12
Q

muscle found between the ribs

A

intercostal muscles

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13
Q

lifts the ribs, letting lungs expand when inhaling

A

external intercostal muscles

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14
Q

decompresses the ribs, useful when forcefully exhaling

A

internal intercostal muscles

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15
Q

flex the vertebral column, helps you to push when defecating or giving birth

A

rectus abdominis

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16
Q

makes up the lateral walls of the abdomen, flex the vertebral column and rotate the trunk and bend it laterally

A

external obliques

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17
Q

same function as external obliques, but at right angle and deeper

A

internal obliques

18
Q

compresses the abdominal contents, deepest muscle of the abdominal wall

A

transversus abdominis

19
Q

most superficial muscles of the posterior neck and upper trunk, extends the head, elevate, depress, adduct, and stabilize the scapula

A

trapezius

20
Q

extends and adducts the humerus, when arm must be brought down e.g. swimming, striking a blow

A

latissimus dorsi

21
Q

prime mover of back extension, provide resistance that helps control the action of bending over at the waist

A

erector spinae

22
Q

flexes the spine laterally, extends the lumbar spine

A

quadratus lumborum

23
Q

favorite injection site for medications less than 5 mL, prime movers of arm abduction

A

deltoid

24
Q

powerful prime mover for flexion of forearm, spuniates the forearm

A

biceps brachii

25
Q

prime mover of elbow flexion, lifts the ulna

A

brachialis

26
Q

fairly weak, resides mainly in the forearm

A

brachioradialis

27
Q

only muscle of the posterior humerus, antagonist of biceps and brachialis, straightens the arm

A

triceps brachii

28
Q

powerful hip extensor, brings the thigh in a straight line with pelvis, most important muscle for extending the hip when needing power

A

gluteus maximus

29
Q

beneath gluteus maximus, hip abductor, steadies the pelvis during walking, intramuscular injection for medications more than 5 mL

A

gluteus medius

30
Q

fused muscle composed of iliacus and psoas major, prime mover of hip flexion, keeps upper body from falling backward when standing erect

A

iliopsoas

31
Q

adducts or presses the thighs together

A

adductor muscles

32
Q

biceps femoris, semimmbranosus, and semitendinosus - primve movers of thigh extension and knee flexion

A

hamstring group

33
Q

most superficial muscle of thigh, weak thigh flexor, talior’s muscle

A

sartorius

34
Q

rectus femoris, three vastus muscles, extends the knee powerfully

A

quadriceps group

35
Q

quadriceps group muscle that helps to flex the hip

A

rectus femoris

36
Q

quadriceps group muscles that are sometimes used as intramuscular injection sites, particularly in infants

A

rectus femoris and vatus lateralis

37
Q

acts to dorsiflex and invert the foot

A

tibiallis anterior

38
Q

prime mover of toe extension

A

extensor digitorum longus

39
Q

longus, brevis, and tertius, plantar flexes and everts the foot

A

fibularis muscles

40
Q

curved calf of the posterior leg, prime mover for plantar flexion of the foot, toe dancer’s muscle

A

gastrocnemius

41
Q

strong plantar flexor of foot, deep to gastrocnemius

A

soleus