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CVM: 720 Anatomy II > Lecture 6: Distal limb vessels > Flashcards

Lecture 6: Distal limb vessels Flashcards

1
Q

Brachial plexus goes from C6- __

A

T2

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2
Q

list the nerves for the thoracic limb Dr.P said we needed to focus on

A
  • Suprascapular
  • Musculocutaneous
  • Median
  • Radial
  • Ulnar
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3
Q

what muscles are innervated by the Suprascapular n.

A

supraspinatus m.
infraspinatus m.

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4
Q

what is “sweeny” or “dancing” shoulder

A
  • Damage to suprascapular nerve
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5
Q

Damage to suprascapular nerve not uncommon in horses.

why?

A

Horses are very strong and horses DONT have an acromion so their nerve is more exposed

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6
Q

“Sweeny” Shoulder (damage to the suprascapular nerve) results in atrophy of

A

supra and infraspinatus, shoulder
instability, and shoulder “slip”

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7
Q

What does the Subscapular n. supply

A

subscapularis m.

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8
Q

what does the Axillary n. supply

A

located between the subscapular m. and teres major

supplies the muscles of the shoulder

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9
Q

what does the Musculocutaneous n. supply

A

innervates the flexors of shoulder and some part of distal limb

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10
Q

what does the median n. innervate

A

MAIN innervation of palmar side of hand

runs with brachial and median a. moved digital and carpal flexor

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11
Q

what does the radial nerve innervate

A

all the extensors (triceps, extensor or carpal/digits)

located between the heads of the triceps

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12
Q

what does the ulnar nerve innervate

A

lateral side; flexors of carpus and digits

**share root with median n.

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13
Q

identify the nerve

A
  • Suprascapular n
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14
Q

identify the nerve

A
  • Subscapular
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15
Q

identify the nerve

A

axillary n.

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16
Q

identify the nerve

A
  • Musculocutaneous n.
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17
Q

identify the nerve

A

median nerve

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18
Q
A
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19
Q

what nerve is this

A

radial nerve

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20
Q

identify the nerve

A

ulnar n.

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21
Q

what nerve is affected here

A

Radial nerve; cannot extend carpus

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22
Q

EXAM Q:

name 2 muscles that extend the carpus

A

extensor carpi radialis
common digital extensor

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23
Q

identify the autonomous zones

A
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24
Q

Cutaneous Innervation of the fore digit: Musculocutaneous n.

A

Craniomedial antebrachium

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25
Cutaneous Innervation of the fore digit: Ulnar n.
Caudal antebrachium
26
Cutaneous Innervation of the fore digit: Median n.
Medial antebrachium
27
What does the Ulnar n. turn into (2)
Dorsal branch n. Lateral Palmar n. (with the communicating branch of the median n.)
28
What does the Median n. turn into (2)
Medial Palmar n. Lateral Palmar n. (with the ulnar n.)
29
what does the Musculocutaneous n. turn into
Medial cutaneous antebrachial n.
30
What does the Lateral Palmar n. split into
Lateral and Medial Palmar metacarpal
31
what does the medial palmar n. turn into
medial digital palmar n.
32
where are the Lateral and Medial Palmar metacarpal n. located
small and deep between Metacarpal 3 and interosseous ligament
33
What are the main arteries we need to focus on for the thoracic limb
1.Axillary Artery 2. Brachial Artery 3. Median Artery
34
From the median artery, what does it divide into
35
what is the main blood supply to the manus
Median a.
36
what does the radial artery divide into
37
T/F the dorsal blood supply of the manus is BETTER in comparison to the palmar aspect of the manus
False; poorer
38
Pelvic Limb Innervation: LS Plexus L4-___
S2
39
Pelvic Limb Innervation List the important nerves
* Cranial and caudal gluteal * Femoral--Saphenous * Obturator * Ischiatic (Sciatic) (2) 1. Tibial 2. Common Fibularis (Peroneal) (Superficial/Deep)
40
What does the femoral n. supply
Supplies the quadriceps
41
Does the saphenous n. run medially or laterally
medially
42
what does the obturator n. innervate
Adductor muscles(gracilis, adductor, pectineus) **remember sartorius is innervated by saphenous n.
43
what does the sciatic n divide into
Tibial n. Common fibularis (Peroneal)
44
What are the two branches of the Common fibularis (Peroneal)
Superficial and deep
45
What area of the leg does the Tibial n (of the Sciatic) innervate
plantar part of the leg (Flex toe and extend hock)
46
What area of the leg does the Common fibularis n (of the Sciatic) innervate
dorsal part of the leg (extend toe and flex hock)
47
identify the nerve
Femoral * Saphenous
48
identify the nerve
Obturator
49
identify the nerve and artery
Obturator n. and a.
50
identify nerve
Sciatic * Tibial * Common fibularis (Peroneal)
51
identify the autonomous and cutaneous zones
52
Cutaneous innervation of the hind digit: what nerve innervates the Craniomedial tibia
Saphenous n.
53
what is the cutaneous innervation of the Fibular n.
Cranial tibia
54
what is the cutaneous innervation of the Tibial n.
Caudal tibia
55
Cutaneous innervation of the hind digit what is the MAIN innervation on the plantar side
tibial n.
56
Common fibular n. divides into the Superficial and Deep fibular n. what does the Superficial and Deep fibular divide into?
57
what does the tibial n. split into
1. Caudal Cutaneous Sural n. 2. Lateral Plantar n. 3. Medial Plantar n.
58
what does the Lateral Plantar n. (off of the tibial n.) turn into
59
From the Femoral a. what does it turn into
Saphenous Popliteal (branch off into cranial tibial) Caudal tibial Lateral and medial plantar
60
What is the deep plantar arch a branch of
Medial plantar a.
61
Deep plantar arch divides into (2)
Lateral plantar metatarsal a. Medial plantar metatarsal a.
62
The Medial plantar metatarsal a. divides into
Medial digital plantar Lateral digital plantar
63
Cranial tibial turns into (2)
Dorsal pedal a. Dorsal metatarsal a.
64
Palmar Digital Nerve Block what nerves are involved?
Palmar Digital Nerves
65
Palmar Digital Nerve Block * Anesthetizes:
* Sole * Navicular Apparatus * Coffin joint * Distal flexor tendon sheath * Distal sesamoidean ligaments * Loss of skin sensation at the heel
66
Abaxial Sesamoid Nerve Block Nerve involved
* Nerves: Palmar Digital Nerves
67
Abaxial Sesamoid Nerve Block * Anesthetizes:
68
Low 4-Point Block what nerves are involved
* Palmar metacarpal/metatarsal nerves (adjacent to splint) * Palmar nerves (between suspensory and DDFT)
69
Low 4-Point Block Anesthetizes:
all parts from the Palmar and Abaxial nerve block
70
Low 4 Point Block Hind limb T/F Will not reliably anesthetize the skin dorsally
True **Performed the same as the forelimb
71
Low 4 Point Block Hind limb what is this kind of nerve block helpful with vs. not helpful with
* Important for suturing a laceration * Less important for a lameness work up
72
Low 4 Point Block Hind limb Can do a _____ring block to anesthetize the skin
dorsal
73
High 4 Point Block Front Limb what nerves are involved Anesthetizes:
Nerves: * Medial and lateral palmar nerves * Medial and lateral palmar metacarpal nerves
74
High 4 (6) Point Block Hind Limb what nerves are involved? Anesthetizes:
Nerves: * Medial and lateral plantar nerves * Medial and lateral plantar metatarsal nerves * Dorsal metatarsal nerves
75
76
77
78
where do you insert the needle for a palmar digital nerve block
over the neurovascular bundle (proximal border of collateral cartilage)
79
where do you insert the needle for a abaxial sesamoid nerve block
at abaxial surface of sesamoid, go distally

CVM: 720 Anatomy II (44 decks)

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