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Muscles Flashcards

(75 cards)

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0
Q

corrugator

A

eyebrows together

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1
Q

frontalis

A

raises the eyebrows

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2
Q

procerus

A

wrinkles nose

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3
Q

orbicularis oris

A

closes the mouth

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4
Q

zygomaticus

A

raises corners of mouth, superior lateral (real smile)

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5
Q

dilator nares

A

opens nostrils

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6
Q

compressor nares

A

closes nostrils

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7
Q

risorius

A

fake smile

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8
Q

levator labii superioris

A

raises upper lip

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9
Q

levator anguli oris

A

raises corner of mouth

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10
Q

depressor anguli oris

A

depress corner of mouth

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11
Q

depressor labii inferioris

A

depress lower lip

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12
Q

buccinator

A

compress cheeks

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13
Q

orbicularis oculi

A

closes the eye

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14
Q

levator palpebrae superioris

A

elevates eyelid

innervated by oculomotor CN III

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15
Q

muscles of facial expression innvervated by

A

facial nerve CN VII

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16
Q

sternocleidomastoid

A

O: sternal head - anterior surface of manubrium
clavicular head - medial 1/3 of clavicle

IN: lateral surface of mastoid process, lateral 1/2 of the superior nuchal line

INN: CN XI spinal accessory

A: flexes neck, extends head, ipsi side bend, contra rotation

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17
Q

splenius capitus

A

O: ligamentum nuchae
superior 6 thoracis vertebrae T1-T6

IN: mastoid process, superior nuchale line

INN: dorsal rami

A: ipsi head rotation & side bend
extend head & neck when acting together

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18
Q

scalenes

A

O: transverse processes C2-C6

IN: middle & anterior - rib 1
posterior - rib 2

INN: ventral rami

A: elevate ribs to aid in respiration
ipsi side bend head
contra rotate head

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19
Q

levator scapulae

A

O: posterior tubercle of 1st 4 transverse processes

IN: superior angle of scapula

INN: dorsal scapula nerve

A: in C-spine - ipsi side bend & rotation
in sagittal plane - tilt head back, head & neck extension

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20
Q

suprahyoids

A

mylohyoid
geniohyoid
stylohyoid
digastric - INN - 2 CN (non-specified)

A: elevate the hyoid bone

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21
Q

infrahyoids

A

sternohyoid
sternothyroid
thyrohyoid - INN CN XII
omohyoid

INN: ansa cervicalis

A: depress hyoid

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22
Q

iliopsoas

A

O: iliacus - iliac crest & fossa
psoas major - T12-L5

IN: lesser trochanter

INN: femoral nerve

A: hip flexion

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23
Q

sartorius

A

O: ASIS

IN: pes anserine

INN: femoral nerve

A: hip Flexion, ABduction, External Rotation (FABER)

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24
tensor fascia lata (TFL)
O: ASIS, lateral aspect iliac crest IN: iliotibial band (inserts on Gerdy's tubercle) INN: superior gluteal nerve A: hip flexion, ABduction, internal rotation
25
rectus femoris
O: AIIS IN: tibial tuberosity via patella tendon INN: femoral nerve A: extend knee, flex hip
26
vastus lateralis
O: lateral lip linear aspera IN: tibial tuberosity via patella tendon INN: femoral nerve A: extend knee
27
vastus medialis
O: medial lip linear aspera IN: tibial tuberosity via patella tendon INN: femoral nerve A: extend knee
28
vastus intermedius
O: anterior lateral shaft of femur IN: tibial tuberosity via patella tendon INN: femoral nerve A: extend knee
29
pectineus
O: body of pubic bone (pectin pubis) IN: pectineal line on proximal femur INN: femoral OR obturator nerve A: hi ADDuction, hip flexion
30
ADDuctor longus
O: superior pubic rami IN: middle aspect of linea aspera (inferior to pectineus) INN: obturator nerve A: hip ADDuction, hip flexion OR extension
31
ADDuctor brevis
O: inferior pubic ramus IN: pectineal line, proximal aspect of femur INN: obturator nerve A: hip ADDuction
32
ADDuctor magnus
O: anterior - inferior pubic ramus posterior - ischial tuberosity IN: distal end medial aspect femur, ADDuctor tubercle of femur INN: obturator AND sciatic nerves A: hip ADDuction, hip extension
33
gracilis
O: inferior pubic ramus IN: superior medial aspect of tibia INN: obturator nerve A: hip ADDuction synergist for knee flexion
34
obturator externus
O: obturator foramen IN: trochanteric fossa on femur INN: obturator nerve A: hip external roation
35
femoral triangle
``` base - inguinal ligament lateral border - sartorius medial border - ADDuctor longus floor - lateral: iliopsoas; medial: pectineus roof - fascia lata ``` contents: femoral vein, artery, nerve
36
gluteus maximus
O: sacrum, coccyx, posterior aspect of ilium IN: posterior aspect of ITB INN: inferior gluteal nerve A: hip extension, hip external rotation
37
gluteus medius
O: posterior aspect of ilium IN: lateral aspect of greater trochanter INN: superior gluteal nerve A: hip ABduction, hip internal rotation
38
gluteus minimus
O: posterior ilium IN: anterior aspect of greater trochanter INN: superior gluteal nerve A: hip ABduction, hip internal rotation
39
piriformis
O: anterior sacrum IN: superior aspect of greater trochanter INN: nerve to piriformis A: hip external rotation
40
superior gemellus
O: ischial spine IN: medial aspect of greater trochanter INN: nerve to obturator internus A: hip external rotation
41
obturator internus
O: obturator foramen IN: medial aspect of greater trochanter INN: nerve to obturator internus A: hip external rotation
42
inferior gemellus
O: ischial tuberosity IN: medial aspect of greater trochanter INN: nerve to quadratus femoris A: hip external rotation
43
quadratus femoris
O: ischial tuberosity IN: medial aspect of greater trochanter INN: nerve to quadratus femoris A: hip external rotation
44
semimembranosis
O: ischial tuberosity IN: posterior medial tibia, medial meniscus INN: sciatic nerve A: hip extension, knee flexion
45
semitendinosis
O: ischial tuberosity IN: pes anserine INN: sciatic nerve A: hip extension, knee flexion
46
biceps femoris
O: LH - ischial tuberosity SH - posterior femur IN: fibular head INN: sicatic nerve A: LH - hip extension, knee flexion SH - knee flexion
47
popliteal fossa
superior lateral - biceps femoris superior medial - semitendinosis, semimembranosis inferior lateral - lateral gastrocnemius inferior medial - medial gastrocnemius ``` contents: popliteal artery & vein tibial nerve common fibular nerve posterior femoral cutaneous nerve ```
48
tibialis anterior
O: lateral condyle tibia, proximal 1/2 shaft of tibia, interosseus membrane IN: 1st metatarsal, medial aspect medial cuneiform INN: deep fibular nerve A: dorsiflexion, inversion
49
extensor digitorum longus
O: proximal 3/4 lateral surface of fibula, interosseus membrane IN: 4 tendons - middle & distal phalanges digits 2-5 INN: deep fibular nerve A: extend toes
50
extensor hallucis longus
O: middle 1/2 anterior fibula, interosseus membrane IN: distal phalanx digit 1 INN: deep fibular nerve A: extend big toe
51
fibularis tertiarius
O: lateral 1/3 fibula IN: tuberosity of 5th metatarsal INN: deep fibular nerve A: dorsiflexion, eversion
52
fibularis longus
O: proximal 2/3 lateral aspect fibula IN: 1st metatarsal, lateral aspect medial cuneiform INN: superficial fibula nerve A: eversion synergist for plantar flexion
53
fibularis brevis
O: distal 2/3 fibula IN: tuberosity of 5th metatarsal INN: superficial fibula nerve A: eversion synergist for plantar flexion
54
gastrocnemius
O: medial - medial femoral condyle lateral - lateral femoral condyle IN: Achilles' tendon INN: tibial nerve A: ankle - plantar flexion knee - flexion
55
soleus
O: posterior aspect fibular including head, posterior medial border tibia IN: Achilles' tendon INN: tibial nerve A: plantar flexion
56
plantaris
O: oblique popliteal ligament IN: Achilles' tendon INN: tibial nerve A: plantar flexion
57
flexor hallucis longus
O: inferior posterior lateral surface fibula, interosseus membrane IN: distal phalanx digit 1 INN: tibial nerve A: flex big toe synergist for plantar felxion
58
flexor digitorum longus
O: posterior surface tibia & fibula IN: distal phalanges digits 2-5 INN: tibial nerve A: flexes digits 2-5 assists with plantar flexion
59
tibialis posterior
O: posterior fibula, interosseus membrane, posterior aspect tibia inferior to soleal line IN: metatarsal 1, navicular, cuboid, all cuneiforms, sometimes metatarsals 2, 3, 4 INN: tibial nerve A: plantar flexion, inversion
60
popliteus
O: lateral condyle of femur, lateral meniscus IN: posterior surface tibia superior to soleal line INN: tibial nerve A: unlocks knee, flexes knee
61
ABductor hallucis
O: medial tubercle calcaneus, flexor retinaculum, plantar aponeurosis IN: medial aspect base of proximal phalanx digit 1 INN: medial plantar nerve A: ABduct digit 1 assista with flexion digit 1
62
ABductor digiti minimi
O: medial/lateral tubercles of calcaneus, plantar aponeurosis IN: lateral aspect base of proximal phalanx digit 5 INN: lateral plantar nerve A: ABduct digit 5 helps flex digit 5
63
flexor digitorum brevis
O: medial tubercle calcaneus, flexor retinaculum, plantar aponeurosis IN: both sides middle phalanges lateral 4 digits INN: median plantar nerve A: flexes digits 2-5
64
quadratus plantae
A: medial/lateral aspect plantar surface calcaneus IN: tendons of FDL INN: lateral plantar nerve A: flexes digits 2-5 with FDL
65
lumbricals
O: tendons of FDL IN: medial aspect extensor expansions digits 2-5 INN: L1 - medial plantar nerve L2-L4 - lateral plantar nerve A: flex MTP, extend IP L1 - unipennate L2-L4 - bipennate
66
flexor digiti minimi brevis
O: base of 5th metatarsal IN: base proximal phalanx 5th digit INN: lateral plantar nerve A: flexes digit 5
67
flexor hallucis brevis
O: plantar surface cuboid, lateral cuneiform IN: both sides bases proximal phalanx digit 1 INN: medial plantar nerve A: flexes proximal phalanx digit 1
68
ADDuctor hallucis
O: oblique head, bases metatarsals 2-4, transverse head, ligaments of MTP IN: tendons of both heads attach to lateral side base of proximal phalanx digit 1 INN: lateral plantar nerve A: ADDucts digit 1
69
DABS
O: adjacent sides metatarsals 1-5 IN: D1 - medial side proximal phalanx digit 2 D2-D4 - lateral sides digits 2-4 INN: lateral plantar nerve A: ABducts digits flex MTP
70
PADS
O: medial sides metatarsals 3-5 IN: medial side bases proximal phalanges 3-5 INN: lateral plantar nerve A: ADDucts digits flex MTP
71
rectus abdominis
O: ribs 5, 6, 7 IN: pubic tubercle INN: ventral rami T8/9-T10/11 A: trunk flexion
72
external abdominal oblique
O: lower 8 ribs IN: ASIS, pubic tubercle via inguinal ligament (interdigitate with serratus anterior) INN: ventral rami T8/9-T10/11 A: contra trunk rotation
73
internal oblique
O: inguinal ligament IN: linea alba, lower 4-5 ribs INN: ventral rami T8/9-T10/11 A: ipsi trunk rotation
74
transverse abdominis
O: deepest layers thoracolumbar fascia INN: ventral rami T8/9-T10/11 A: compress & support abdominal viscera

Anatomy (2 decks)

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