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Human Structure and Function I > Muscles and their functions > Flashcards

Muscles and their functions Flashcards

1
Q

for the eyesocket - used for closing eyes

A

Orbicularis oculi

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2
Q

for smiling

A

Zygomaticus

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3
Q

Chewing

A

Buccinator

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4
Q

Round shaped muscle to close mouth or pucker lips

A

Orbicularis Oris

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5
Q

Facial expressions- sadness, suprise, horror

A

Platysma

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6
Q

Chewing (tension headaches happen when this muscle contracts for too long)

A

Temporalis

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7
Q

Connective tissue attaching occipitalis and frontalis

A

Cranial aponeurosis

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8
Q

moving eyebrows

A

Occipitalis

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9
Q

mastication (chewing)

A

Masseter

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10
Q

Neck flexer (laterally rotates head)

A

Sternocleidomastoid

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11
Q

Posture and active movements - tilts and turns head and neck. Raises, retracts, rotates scapula.

A

Trapezius

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12
Q

Arm abduction

A

Deltoid

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13
Q

Flexion, adduction and internal rotation

A

Pectoralis major

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14
Q

Main Elbow flexion of elbow and supination of forearm

A

Biceps brachii

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15
Q

Second main Elbow flexor

A

Brachialis

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16
Q

(Helper) Flexes forearm at elbow

A

Brachioradialis

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17
Q

Flex vertebral column (bend over)

A

Rectus abdominus

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18
Q

Has horizontal muscle fibers, maintains tone of abdominal organs

A

Transversus abdominus

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19
Q

Antagonist of diaphragm

A

Internal oblique

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20
Q

Used for Valsalva maneuver/flexes and rotates vertebral column

A

External oblique

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21
Q

Extension of elbow joint

A

Triceps brachii

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22
Q

Adduct, medially rotate extend arm at the glemohumeral joint

A

latissmus dorsi

23
Q

straighten the back/side-to-side rotation (3)

A

ilicostalis
longissmus
spinalis

24
Q

Lateral tilt/ extensor of lumbar spine/ accessory muscle inspiration

A

Quatratus lumborum

25
Q

Rotator of shoulder/shoulder extension

A

Infraspinatus

26
Q

Abduction and shoulder stabilization (insertion is the greater turbecle)

A

Supraspinatus

27
Q

Rotate the humerus/adduct

A

Teres major + teres minor

28
Q

Pronation and flexion of forearm

A

Pronator teres

29
Q

supination of forearm

A

Supinator

30
Q

Flexion of wrist and abduction of wrist towards radius bone

A

Flexor carpiradialis

31
Q

Flexion and adduction of hand and wrist

A

Flexor carpiulnaris

32
Q

Flexion of fingers

A

Flexor digitorum profundus

33
Q

Flexion of fingers and interphalangeal joints (furthest joins in fingers)

A

Flexor pollicis longus

34
Q

Flexion of thumb interphalangeal joins (gripping)

A

Flexor pollicus longus

35
Q

Abductor of thumb at wrist

A

Abductor pollicis longus

36
Q

Protector of flexor tendons and median nerve (the wrist strip, damage will call carpal tunnel)

A

flexor retinaculum

37
Q

Protector of extendor tendons

A

Extensor retinaculum

38
Q

Abduct hand at wrist

A

Extensor carpi radialis

39
Q

Extendor and abduction of wrist

A

extensor carpiradialus

40
Q

Abducting and extending thighs (2)

A

Gluteus maximus/medius

41
Q

What is the best place to give a butt injection?

A

make a quadrant on posterior thigh and inject in upper right (gluteus medius)

42
Q

What is the best place to give a arm injection?

A

deltoid

43
Q

What is the best place to give a leg injection?

A

vastus lateralis

44
Q

Hip and knee flexor (crossy leg tailor sit)

A

Sartorius

45
Q

Extensors of knee (walking, running, jumping, squatting)

A

Quadritriceps:
-rectus femoris
-vastus lateralis
-vastus medialis

46
Q

Flexion of hip

A

Rectus femoris

47
Q

Flexes knee and foot

A

Gatrocnemius

48
Q

Flexes foot to point toe downwards

A

soleous

49
Q

Flexus of ankle and eversion

A

fibularis longus

50
Q

Extends foot at ankle and four small digits (plantar flexion)

A

extensor digitalus longus

51
Q

inversion and dorsiflexion

A

tibialis anterior

52
Q

Eversion and ankle flexion

A

fibularus longus

53
Q

Connects gastrocnemius with medial malleolus

A

Calcaneal (achilles) tendon

Human Structure and Function I (7 decks)

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