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Large Animal Anatomy > Muscle Origins, Insertions, Actions, and Innervations for Midterm > Flashcards

Muscle Origins, Insertions, Actions, and Innervations for Midterm Flashcards

1
Q

Brachiocephalicus m: Name the 2 parts

A

Cleidomastoideus & cleidobrachialis

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2
Q

Origin: Cleidomastoideus

A

Clavicular intersection

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3
Q

Insertion: Cleidomastoideus

A

Mastoid proccess

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4
Q

Action: Cleidomastoideus

A

Unilateral: Advances limb or turbs head. Bilateral: Flexes head & neck

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5
Q

Innervation: Cleidomastoideus

A

Accessory, Axillary, and Cervical n’s

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6
Q

Origin: Cleidobrachialis

A

Clavicular intersection

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7
Q

Insertion: Cleidobrachialis

A

Crest of the humerus

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8
Q

Action: Cleidobrachialis

A

Unilateral: Advances limb or turbs head. Bilateral: Flexes head & neck

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9
Q

Innervation: Cleidobrachialis

A

Accessory, Axillary, and Cervical n’s

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10
Q

Origin: Sternocephalicus

A

Menubrium of the sternum

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11
Q

Insertion: Sternocephalicus

A

Ramus of the mandible

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12
Q

Action: Sternocephalicus

A

Unilateral: Turns head and neck. Bilateral: Flexes head and neck.

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13
Q

Innervation: Sternocephalicus

A

Ventral branch of the accessory n

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14
Q

Name the 2 parts of the trapezius m

A

Trapezius cervicis and thoracis

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15
Q

Origin: Trapezius cervicis

A

Funiculus nuchae

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16
Q

Insertion: Trapezius cervicis

A

Spine of the Scapula

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17
Q

Action: Trapezius cervicis

A

Elevate & advance scapula

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18
Q

Innervation: Trapezius cervicis

A

Dorsal branch of the accessory n

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19
Q

Origin: Trapezius thoracis

A

Supraspinous ligament

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20
Q

Insertion: Trapezius thoracis

A

Spine of the scapula

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21
Q

Action: Trapezius thoracis

A

Elevate and retract scapula

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22
Q

Innervation: Trapezius thoracis

A

Dorsal branch of the accessory n

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23
Q

Origin: Gluteus medius

A

Aponeurosis of longissimus, lumborum, ilium, and sacrosciatic ligament

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24
Q

Insertion: Gluteus medius

A

Greater trochanter

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25
Action: Gluteus medius
Extend hip & abduct thigh
26
Innervation: Gluteus medius
Cranial & caudal gluteal n's
27
Origin: Biceps femoris
Sacrum, sacrosciatic ligament, ischial tuberocity
28
Insertion: Biceps femoris
fascia lata-patella, lateral patellar ligament, calcaneal tuberosity
29
Action: Biceps femoris
Extend hip & abduct thigh
30
Innervation: Biceps femoris
Caudal gluteal & sciatic n's
31
Origin: Semitendinosus
Cd 1-2 & ventral part of the ischial tuberosity
32
Insertion: Semitendinosus
Tibial crest, crural fascia, and calcaneal tuberosity
33
Action: Semitendinosus
Extend hip, flex stifle, extend hock
34
Innervation: Semitendinosus
Caudal gluteal & sciatic n's
35
Origin: Gracilis
subpelvic tendon (pelvic symphysis)
36
Insertion: Gracilis
Medial patellar ligament & medial surface of the tibia
37
Action: Gracilis
Adduct limb
38
Innervation: Gracillis
Obturator n
39
Name the m's that make up the quadriceps femoris m
Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
40
Origin: Rectus femoris
Body of the ilium
41
Insertion: Rectus femoris
tibial toberosity
42
Action: Rectus femoris
Flex hip & extend stifle
43
Innervation: Rectus femoris
Femoral n
44
Origin: Vastus lateralis
Lateral surface of the femur
45
Insertion: Vastus lateralis
Tibial tuberosity
46
Action: Vastus lateralis
Extend stifle joint
47
Innervation: Vastus lateralis
Femoral n
48
Origin: Vastus medialis
Medial surface of the femur
49
Insertion: Vastus medialis
Tibial tuberosiry
50
Action: Vastus medialis
Extend stifle joint
51
Innervation: Vastus medialis
Femoral n
52
Origin: Vastus intermedius
Cranial surface of the femur
53
Insertion: Vastus intermedius
tibial tuberosity
54
Action: Vastus intermedius
Extend stifle joint
55
Innervation: Vastus intermedius
Femoral n
56
Origin: Tibialis cranialis
lateral condyle of the tibia
57
Insertion: Tibialis cranialis
3rd metatarsal & tarsal bones 1&2
58
Action: Tibialis cranialis
Flex hock joint
59
Innervation: Tibialis cranialis
Deep peroneal n
60
Origin: Peroneus tertius
Extensor fossa of the femur
61
Insertion: Peroneus tertius
3rd metatarsal, 3rd tarsal, and 4th tarsal bones
62
Action: Peroneus tertius
Flex the hock when the stifle is flexed, extend stifle when tarsus is extended
63
Innervation: Peroneus tertius
Branches of the deep peroneal n (sensory only)
64
Origin: Long digital extensor
Extensor fossa of femur
65
Insertion: Long digital extensor
Extensor process of 3rd phalanx
66
Action: Long digital extensor
Extend stifle & digits, flex hock
67
Innervation: Long digital extensor
Deep peroneal n
68
Origin: Lateral digital extensor
Lateral collateral ligament of stifle & adjacent areas of tibia and fibula
69
Insertion: Lateral digital extensor
Tendon of insertion of long digital extensor
70
Action: Lateral digital extensor
Extend the digit, flex the hock *
71
Innervation: Lateral digital extensor
Superficial peroneal n
72
Origin: Gastrocnemius
Supracondyloid tuberosity of the femur
73
Insertion: Gastrocnemius
Calcaneal tuberosity, proximal extremity of 2nd phalanx and distal extremity of 1st phalanx
74
Action: Gastrocnemius
Flex the digit & extend the hock, flex stifle
75
Innervation: Gastrocnemius
Tibial n
76
Origin: Superficial digital flexor
Supracondyloid fossa of the femur
77
Insertion: Superficial digital flexor
Calcaneal tuberosity, proximal extremity of the 2nd phalanx and distal extremity of the 1st phalanx
78
Action: Superficial digital flexor
Flex the digit & extend the hock, flex the stifle*
79
Innervation: Superficial digital flexor
Tibial n
80
Origin: Deep digital flexor
Lateral condyle and lateral border of the tibia & fibula
81
Insertion: Deep digital flexor
Flexor surface of the 3rd phalanx
82
Action: Deep digital flexor
Flex the digit and extend the hock
83
Innervation: Deep digital flexor
Tibial n
84
Origin: Interosseus (suspensory ligament)
Distal row of tarsal bones & proximal extremity of the 3rd metatarsal bones
85
Insertion: Interosseus (suspensory ligament)
Abaxial surface of proximal sesamoids and conjoined tendon of insertion of the long and lateral lateral digital extensor m's
86
Action: Interosseus (suspensory ligament)
Support the fetlock (prevent overextension)
87
Innervation: Interosseus (suspensory ligament)
Branches of the tibial n (suspensory only)

Large Animal Anatomy (7 decks)

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