random stuff2 Flashcards

1
Q

the lumbosacral plexus consists of the intermingling of primary branches of spinal nerves ___ thru ___

A

L4-S4

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2
Q

femoral n. spinal nerve origin

A

L4-L6

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3
Q

obturator n. spinal nerve origin

A

L4-L6

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4
Q

sciatic n. spinal nerve origin

A

L6-S2

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5
Q

pudendal n. spinal nerve origin

A

S2 - S4

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6
Q

the femoral nerve has a cutaneous branch named the ______ nerve

A

saphenous

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7
Q

the sciatic nerve branches into 2 nerves:

A

tibial and common peroneal

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8
Q

the common peroneal n branches into 2 nerves:

A

superficial and deep peroneal

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9
Q

the deep peroneal n branches into the ____ nerve distally

A

lateral dorsal metatarsal n.

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10
Q

name the 3 branches of the tibial nerve

A

caudal cutaneous sural n (runs with lateral saphenous v.), medial and lateral plantar nerves (on the medial side)

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11
Q

femoral nerve innervates:

A

flexors of the hip (iliopsoas, rectus femoris) and the extensors of the stifle (quadriceps femoris)

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12
Q

the cutaneous saphenous nerve innervates:

A

the skin of the medial thigh, medial crus, dorsomedial skin of the tarsus and metatarsus

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13
Q

clinical signs of femoral nerve laceration:

A

inability to support weight due to paralysis of quadriceps femoris, analgesia over the medial crural region

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14
Q

obturator nerve innervates:

A

adductors of the hip (pectineus, adductor, graciclis, external obturator) PAGE

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15
Q

T/F: the obturator nerve has a cutaneous portion

A

False

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16
Q

cranial gluteal nerve innervates:

A

abductors of the hip and the tensor fasciae latae m.

17
Q

T/F: the cranial gluteal nerve has a cutaneous portion

A

False

18
Q

what joint does the cranial gluteal nerve innervate?

A

hip joint

19
Q

clinical signs of cranial gluteal nerve laceration

A

atrophy of gluteus medius

20
Q

caudal gluteal nerve innervates:

A

extensors of the hip (gluteus medius, biceps femoris, semitendinosus), and the abductors of the hip

21
Q

sciatic nerve innervates:

A

most of the hindlimb muscles either directly or via its tibial and common peroneal divisions. these muscles include the flexors of the stifle (biceps femoris (caudal division), semitendinosus, popliteus, gastrocnemius), extensors and flexors of the tarsus, and extensors and flexors of the digit

22
Q

is the sciatic nerve a mixed nerve?

A

YES! it has cutaneous innervation (almost all the skin from the stifle down to the hoof) - the saphenous nerve (from the femoral nerve) innervates the medial strip of the leg

23
Q

the tibial nerve is the cranial or caudal division of the sciatic nerve?

A

caudal - passes in between the gastrocnemius muscles

24
Q

when does the tibial nerve give off the caudal cutaneous sural nerve?

A

right before it dives between the gastroc muscles

25
Q

what does the tibial nerve innervate?

A

flexors of the stifle (poplitus, gastrocnemius), extensors of the tarsus (gastrocnemius, soleus, superficial and deep digital flexors), and flexors of the digit (superficial and deep digital flexors)

26
Q

tibial nerve skin innervation:

A

caudolateral skin from stifle to hoof

27
Q

tibial nerve joint innervation:

A

stifle joint, plantar aspects of fetlock, pastern and coffin joints, and the navicular bursa

28
Q

clinical signs of a tibial nerve laceration:

A

hypermetric gait with “dropped hock” (yperflexsion of tarsus at rest), inability to flex digit, analgesia of plantar metatrsus and digit

29
Q

is the common peroneal nerve the cranial or caudal division of the sciatic nerve?

A

cranial

30
Q

what are the 3 branches of the common peroneal nerve?

A

lateral cutaneous sural n. , superficial and deep peroneal n.

31
Q

common peroneal innervation:

A

flexors of the tarsus (long and lateral digital extensors, tibialis cranialis) and the extensors of the digit (long and lateral digital extensors)

32
Q

lateral cutaneous sural nerve innervation:

A

skin of the dorsolateral suface of the crus and pes, tarsal joints, fetlock joint, and dorsal portions of pastern and coffin joints

33
Q

clinical signs of common peroneal nerve laceration:

A

inability to flex the tarsus and extend the digit, the animal shows hyperextension of the hock and hyperflexion of the digit, fetlock knuckles during walking, and the toe is dragged. analgesia of the dorsolateral pes from the tarsus to the fetlock

34
Q

tarsal joint innervation:

A

deep peroneal nerve

35
Q

fetlock joint innervation:

A

medial and lateral dorsal metatarsal nerves, medial and lateral plantar nerves

36
Q

pastern and coffin joint innervation:

A

plantar aspect by the medial and lateral plantar digital nerves (from tibial distribution) and the dorsal aspect by the medial and lateral dorsal digital nerves (distal branches of the dorsal metatarsal nerves - peroneal distribution)