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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
internal intercostals action
depress the ribs, resulting in expiration
26
transversus thoracis action
depress the ribs, resulting in expiration
27
diaphragm action
primary muscle for relaxed breathing, boundary between thoracic and abdominal cavities contraction = inspiration relaxation = expiration
28
external oblique, internal oblique, and transversus abdominis action
compress the abdomen in forced expiration, rotation of lumbar vertebrae
29
psoas major action
runs along the anterior surface of the vertebrae, flex the lumbar vertebrae and flex the hip
30
quadratus lumborum function
laterally flex the lumbar vertebrae
31
rectus abdominis action
flex the vertebral column
32
rectus abdominis structure
tendons that separate the muscle into several bellies, six-pack appearance
33
external muscles direction
inferior and medial, hands in pockets
34
internal muscles direction
superior and lateral
35
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.
flex, extend
36
perineal muscles
muscles of the urogenital triangle, external anal sphincter (superficial)
37
urogenital triangle muscles action
sexual function as well as supporting the floor of the pelvis
38
external anal sphincter action
voluntary control of defection
39
pelvic diaphragm
deep bowl that cradles the pelvic viscera
40
pelvix diaphragm action
support these pelvic organs
41
lower limb muscles innervation
lumbosacral plexus, a combination of L2–S4 ventral rami
42
muscles of the hip
gluteus maximus, iliopsoas, tensor fascia lata, gluteus medius, gluteus minimus, deep hip rotators
43
Iliopsoas action
Flexion of the hip
44
Gluteus maximus action
Extension of the hip
45
Gluteus medius action
Abduction of the hip
46
Gluteus minimus action
Abduction of the hip
47
Tensor fascia lata action
Flexion of the hip, internal rotation
48
Deep hip rotators action
Lateral rotation of the hip
49
iliopsoas muscles
iliacus and psoas major
50
iliopsoas structure
pass under the inguinal ligament
51
iliopsoas synergist
tensor fascia lata
52
anterior thigh muscles
quadriceps (vastus lateralis, vastus medialis, vastus intermedius, and the rectus femoris), sartorius
53
Tendon of anterior thigh
quadriceps tendon -> patellar tendon below the patella
54
quadriceps muscles attachment
tibial tuberosity of tibia
55
rectus femoris action
Extension of knee
56
Vastus intermedius action
Extension of knee
57
Vastus medialis action
Extension of knee
58
Vastus lateralis action
Extension of knee
59
Sartorius action
Flexion of knee and external rotation of the hip
60
hamstring muscles
Semitendinosus, semimembranosus, biceps femoris
61
Semimembranosus action
Flexion of knee
62
Semitendinosus action
Flexion of knee
63
Biceps femoris action
Flexion of knee
64
Medial Thigh Muscles action
Adduction of the hip
65
Medial Thigh Muscles
pectineus, adductor brevis, adductor longus, adductor magnus, and gracilis
66
Iliotibial tract
shared tendon of gluteus maximus and tensor fascia lata
67
popliteus
small rotation that unlocks the knee when standing upright
68
Anterior Leg Muscles
Tibialis anterior, extensor digitorum longus, extensor hallucis longus
69
tibialis anterior action
dorsiflexion and inversion of talocrucal joint
70
extensor digitorum longus action
extension of digits (II-V)
71
extensor hallucis longus
extension of digit I
72
Posterior Leg Muscles
Popliteus, Gastrocnemius, Soleus, Plantaris, Flexor digitorum longus, Flexor hallucis longus, Tibialis posterior
73
Gastrocnemius action
plantarflexion at the talocrural joint
74
soleus action
plantarflexion at the talocrural joint
75
plantaris
plantarflexion at the talocrural joint
76
flexor digitorum longus
Flexion of digits (II–V)
77
Flexor hallucis longus
flexion of digit I
78
Tibialis posterior
plantarflexion and inversion of talocrural joint
79
Fibularis longus
eversion of talocrural joint
80
Fibularis brevis
eversion of talocrural joint
81
lateral leg muscles
fibularis longus, fibularis brevis

BIOL 252L (5 decks)

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