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anatomy and physiology 1 > origin/insertion of important muscles > Flashcards

origin/insertion of important muscles Flashcards

1
Q

masseter muscle origin

A

zygomatic bone and maxilla

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2
Q

masseter muscle insertion

A

mandible

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3
Q

masseter muscle action

A

elevation of mandible (forced closure)

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4
Q

sternocleidomastoid origin

A

manubrium and clavicle

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5
Q

sternocleidomastoid insertion

A

mastoid process

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6
Q

sternocleidomastoid action

A

flexes and rotates cervical vertebrae

extends neck

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7
Q

deltoid origin

A

clavicle, acromion, spine of scapula

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8
Q

deltoid insertion

A

humerus

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9
Q

deltoid action

A

abducts arm
rotates
extends

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10
Q

diaphragm origin

A

internal surface of ribcage and sternum, costal cartilages, last 6 ribs, and lumbar vert

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11
Q

diaphragm insertion

A

central tendon

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12
Q

diaphragm action

A

prime mover of inspiration

flattens on contraction

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13
Q

biceps brachii origin

A

coracoid process and upper region of glenoid fossa

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14
Q

biceps brachii insertion

A

radius and ulna

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15
Q

biceps brachii action

A

supinates forearm
flexes elbow
weakly flexes shoulder

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16
Q

biceps femoris origin

A

femur and ischium

17
Q

biceps femoris insertion

A

tibia and fibula

18
Q

biceps femoris action

A

flex and rotate knee

extend hip

19
Q

rectus femoris origin

A

ilium

20
Q

rectus femoris insertion

A

patella and tibia

21
Q

rectus femoris action

A

extends leg at knee

flexes thigh at hip

22
Q

brachioradialis origin

A

humerus

23
Q

brachioradialis insertion

A

styloid process of radius

24
Q

brachioradialis action

A

flexes arm at elbow

25
Q

gluteus maximus origin

A

ilium, sacrum, coccyx

26
Q

gluteus maximus insertion

A

femur and tibia

27
Q

gluteus maximus action

A

extends and rotates hip

maintains knee extended

28
Q

sartorius origin

A

ilium

29
Q

sartorius insertion

A

tibia

30
Q

sartorius action

A

flexes, abducts, and rotates thigh at hip

flexes and rotates leg at knee

31
Q

gastrocnemius origin

A

femur

32
Q

gastrocnemius insertion

A

calcaneus

33
Q

gastrocnemius action

A

plantar flexes foot

flexes knee

34
Q

external intercostals origin

A

inferior border of rib above

35
Q

external intercostals insertion

A

superior border of rib above

36
Q

external intercostals action

A

pull ribs towards one another to elevate rib cage

37
Q

internal intercostals origin

A

superior border of rib above

38
Q

internal intercostals insertion

A

inferior border of rib above

39
Q

internal intercostals action

A

draw ribs together

depress rib cage

anatomy and physiology 1 (8 decks)

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