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BIOL 252L > Lab 6 > Flashcards

Lab 6 Flashcards

1
Q

epaxial muscles location

A

posteriorly to the vetebral column

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2
Q

expaxial muscles innervation

A

dorsal rami of spinal nerves

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3
Q

hypaxial muscles location

A

anteriorly and laterally to the vertebral column

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4
Q

hypaxial muscles innervation

A

ventral rami of the spinal nerves

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5
Q

superficial muscles of the back

A

trapezius, latissimus dorsi, rhomboids, levator scapulae

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6
Q

superficial muscles of the back function

A

attach to and move the upper limb

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7
Q

intermediate muscles of the back

A

serratus posterior superior, seratus posterior inferior

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8
Q

Serratus posterior superior action

A

elevates the ribs, increasing the thoracic volume for inspiration

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9
Q

Serratus posterior inferior action

A

depressing the ribs during expiration

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10
Q

deep back muscles

A

epaxial muscles: “true back muscles”

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11
Q

erector spinae group location

A

inferior 2/3 of VC

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12
Q

splenius group location

A

superior 1/3 of VC

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13
Q

epaxial muscles

A

erector spinae group, splenius group, iliocostalis, longissimus, spinalis

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14
Q

epaxial muscle action

A

bilateral: extension of the VC, unilateral: lateral flexion

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15
Q

erector spinae group

A

iliocostalis, longissimus, spinalis

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16
Q

muscles of the neck location

A

between the cranial nerve-innervated muscles (trapezius and sternocleidomastoid) and the spinal nerve-innervated trunk muscles

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17
Q

muscles of the neck

A

scalene muscles, longus muscles (colli & capitis), infrahyoid muscles

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18
Q

scalene muscles action

A

laterally flex the neck

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19
Q

longus muscles (colli & capitis) action

A

flexion of the neck

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20
Q

infrahyoid muscles action

A

depress and stabilize the hyoid bone

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21
Q

thorax function

A

ventilation of the lungs

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22
Q

muscles of the thorax

A

external intercostal muscles, internal intercostal muscles, transversus thoracis

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23
Q

muscles of the abdomen

A

external oblique muscles, internal oblique muscles, transversus abdominis

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24
Q

external intercostal muscles action

A

elevate the ribs, resulting in inspiration

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25
Q

internal intercostals action

A

depress the ribs, resulting in expiration

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26
Q

transversus thoracis action

A

depress the ribs, resulting in expiration

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27
Q

diaphragm action

A

primary muscle for relaxed breathing, boundary between thoracic and abdominal cavities
contraction = inspiration
relaxation = expiration

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28
Q

external oblique, internal oblique, and transversus abdominis action

A

compress the abdomen in forced expiration, rotation of lumbar vertebrae

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29
Q

psoas major action

A

runs along the anterior surface of the vertebrae, flex the lumbar vertebrae and flex the hip

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30
Q

quadratus lumborum function

A

laterally flex the lumbar vertebrae

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31
Q

rectus abdominis action

A

flex the vertebral column

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32
Q

rectus abdominis structure

A

tendons that separate the muscle into several bellies, six-pack appearance

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33
Q

external muscles direction

A

inferior and medial, hands in pockets

34
Q

internal muscles direction

A

superior and lateral

35
Q

Muscles that are anterior to the vertebral column, such as rectus abdominis and psoas major function to _____ spine while those posterior to it, such as the epaxial muscles _____ the spine.

A

flex, extend

36
Q

perineal muscles

A

muscles of the urogenital triangle, external anal sphincter (superficial)

37
Q

urogenital triangle muscles action

A

sexual function as well as supporting the floor of the pelvis

38
Q

external anal sphincter action

A

voluntary control of defection

39
Q

pelvic diaphragm

A

deep bowl that cradles the pelvic viscera

40
Q

pelvix diaphragm action

A

support these pelvic organs

41
Q

lower limb muscles innervation

A

lumbosacral plexus, a combination of L2–S4 ventral rami

42
Q

muscles of the hip

A

gluteus maximus, iliopsoas, tensor fascia lata, gluteus medius, gluteus minimus, deep hip rotators

43
Q

Iliopsoas action

A

Flexion of the hip

44
Q

Gluteus maximus action

A

Extension of the hip

45
Q

Gluteus medius action

A

Abduction of the hip

46
Q

Gluteus minimus action

A

Abduction of the hip

47
Q

Tensor fascia lata action

A

Flexion of the hip, internal rotation

48
Q

Deep hip rotators action

A

Lateral rotation of the hip

49
Q

iliopsoas muscles

A

iliacus and psoas major

50
Q

iliopsoas structure

A

pass under the inguinal ligament

51
Q

iliopsoas synergist

A

tensor fascia lata

52
Q

anterior thigh muscles

A

quadriceps (vastus lateralis, vastus medialis, vastus intermedius, and the rectus femoris), sartorius

53
Q

Tendon of anterior thigh

A

quadriceps tendon -> patellar tendon below the patella

54
Q

quadriceps muscles attachment

A

tibial tuberosity of tibia

55
Q

rectus femoris action

A

Extension of knee

56
Q

Vastus intermedius action

A

Extension of knee

57
Q

Vastus medialis action

A

Extension of knee

58
Q

Vastus lateralis action

A

Extension of knee

59
Q

Sartorius action

A

Flexion of knee and external rotation of the hip

60
Q

hamstring muscles

A

Semitendinosus, semimembranosus, biceps femoris

61
Q

Semimembranosus action

A

Flexion of knee

62
Q

Semitendinosus action

A

Flexion of knee

63
Q

Biceps femoris action

A

Flexion of knee

64
Q

Medial Thigh Muscles action

A

Adduction of the hip

65
Q

Medial Thigh Muscles

A

pectineus, adductor brevis, adductor longus, adductor magnus, and gracilis

66
Q

Iliotibial tract

A

shared tendon of gluteus maximus and tensor fascia lata

67
Q

popliteus

A

small rotation that unlocks the knee when standing upright

68
Q

Anterior Leg Muscles

A

Tibialis anterior, extensor digitorum longus, extensor hallucis longus

69
Q

tibialis anterior action

A

dorsiflexion and inversion of talocrucal joint

70
Q

extensor digitorum longus action

A

extension of digits (II-V)

71
Q

extensor hallucis longus

A

extension of digit I

72
Q

Posterior Leg Muscles

A

Popliteus, Gastrocnemius, Soleus, Plantaris, Flexor digitorum longus, Flexor hallucis longus, Tibialis posterior

73
Q

Gastrocnemius action

A

plantarflexion at the talocrural joint

74
Q

soleus action

A

plantarflexion at the talocrural joint

75
Q

plantaris

A

plantarflexion at the talocrural joint

76
Q

flexor digitorum longus

A

Flexion of digits (II–V)

77
Q

Flexor hallucis longus

A

flexion of digit I

78
Q

Tibialis posterior

A

plantarflexion and inversion of talocrural joint

79
Q

Fibularis longus

A

eversion of talocrural joint

80
Q

Fibularis brevis

A

eversion of talocrural joint

81
Q

lateral leg muscles

A

fibularis longus, fibularis brevis

BIOL 252L (5 decks)

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