LAB - arteries, nerves, injuries Flashcards Preview

Gross Anatomy > LAB - arteries, nerves, injuries > Flashcards

Flashcards in LAB - arteries, nerves, injuries Deck (63):
1

What are the artery components of the superficial dorsal network on forepaw?

Cranial superficial antebrachial - lateral & medial branches

2

What are the artery components of the deep dorsal artery network of the forepaw?

Caudal interosseous (main)
Radial (small)

3

What is another word for the deep dorsal artery network?

Dorsal carpal rete

4

What are the artery components of the superficial palmar arch of the forepaw?

Median (main)
Superficial branch of caudal interosseus (small)

5

What are they artery components of the deep palmar arch of the forepaw?

Deep branch of caudal interosseus (main)
Radial (small)

6

What are the arteries of the superficial dorsal forepaw called?

Dorsal common digital arteries

7

What are the arteries of the deep dorsal forepaw called?

Dorsal metacarpal arteries

8

What are the arteries of the superficial palmar arch called?

Palmar common digital arteries

9

What are the arteries of the deep palmar arch called?

Palmar metacarpal arteries

10

What veins are part of the superficial venous system?

Cephalic, accessory cephalic, , omobrachial, axillobrachial, median cubital

11

What veins are part of the deep venous system?

Axillary, brachial

12

Which veins serve as a connection between the deep and superficial veins?

Median cubital
Axillobrachial

13

What are the main lymph nodes?

Superficial cervical
Axillary

14

Are superficial cervical lymph nodes constant? Palpable?

Both constant and palpable

15

Are axillary lymph nodes constant? Palpable?

Constant but not palpable

16

Are accessory lymph nodes constant? Palpable?

Inconstant but usually palpable

17

Afferent lymph vessels of the superficial cervical lymph node

Lateral thoracic limb
Caudal portion of the head, part of the ear, lateral surface of the neck

18

Efferent lymph vessels of the superficial cervical lymph

Thoracic duct (left side)
Right tracheal trunk (right side)
External jugular vein (both sides)

19

Afferent lymph vessels of axillary lymph node

Thoracic & cranial abdominal mamma

Skin of shoulder and arm

All bones except digits

Humeral, cubital, caral joints

Muscles of thoracic limb

Accessory axillary lymph node

20

Efferent lymph vessels of axillary lymph node

External jugular vein
Thoracic duct (left)
Left & right tracheal trunk

21

Where is the accessory lymph node located?

2 to 3rd intercostal space

22

What are the afferent vessels of the accessory lymph node?

Thoracic and cranial abdominal mamma

Skin of lateral and ventral thoracic wall

Lateral and medial regions of shoulder, arm, elbow

23

Efferent vessels of of accessory lymph node

Axillary lymph node

24

What nerves form the brachial plexus?

Sixth cervical nerve
Seventh cervical Nerve
Eighth cervical nerve
Thoracic nerve 1
Thoracic nerve 2

25

What does the brachial plexus innervate?

Extrinsic & intrinsic muscles of thoracic limb
Skin of thoracic limb
Lateral wall of thorax

26

Why are there no cell bodies in the brachial plexus?

Cell bodies are located within the grey matter of the ventral horn

Efferent nerve travels from ventral horn to effector muscle

Afferents synapse in dorsal root ganglion

27

What nerves innervate the extrinsic muscles of the thoracic limbs?

Thoracodorsal
Lateral
Long thoracic
Cranial pectoral
Caudal pectoral

28

What nerves innervate the intrinsic muscles of the thoracic limb?

Suprascapular
Subscapular
Axillary
Musculocutaneous
Radial
Median
Ulnar

29

Which nerves have cutaneous branches?

Nerves of the intrinsic muscles except supra- subscapular

Axillary
Musculocutaneous
Radial
Median
Ulnar

30

What is the cutaneous area?

The total area of skin that is innervated by a given cutaneous nerve

31

What are the 2 zones of the cutaneous area?

Overlap zone: innervated by two or more cutaneous nerves, located at the periphery of the cutaneous area

Autonomous zone: centrally located within the CA
Innervated by only 1 nerve

32

How to test for cutaneous sensation?

1. Grasp a small fold of skin

2. Pinch with increasing intensity until reaction occurs or obviously no reaction

Any reflex or reaction indicates the nerve is working

33

What muscle does the lateral thoracic nerve innervate?

Cutaneous trunci

34

What is the panniculus relfex

Mild compression of the skin sends signal via dorsal branches of lumbar/thoracic nerves (C8-L3) and results in contraction of cutaneous trunci

35

What does an injury to the suprascapular do?

Atrophy of supraspinatus & infraspinatus

Lateral abduction of shoulder "Shoulder slip"

36

What does an injury to the muscolucutaneous nerve do?

Paralyze the main flexor muscles of the cubital joint

37

Where does the axillary nerve pass from the medial to the lateral side?

Proximal to teres major

38

What are the cutaneous branches of the axillary nerve?

Cranial lateral cutaneous brachial (lateral head of triceps)

Cranial cutaneous antebrachial

39

What is the cutaneous branch of the musculocutaneous nerve?

Medial cutaneous antebrachial

40

Where does the radial nerve pass from the medial to lateral side?

Distal to teres major

41

What branches of the radial nerve innervate the extensor muscles of the cubital joint?

Tricipital branches

42

What are the 2 main branches of the radial nerve?

Superficial branch
Deep branch

43

What nerve runs with the cephalic vein & cranial superficial antebrachial arteries?

Superficial branch of radial nerve has medial & lateral branch

44

What is the purpose of the Lateral cutaneous antebrachial nerve branch from the superficial radial?

Innervates skin
Dorsal common digital nerves (II, III, IV)

45

What is the purpose of the medial branch of the superficial radial?

Dorsal common digital nerves (Lateral)

46

What is the cutaneous area of the deep radial nerve?

Craniolateral aspect of antebrachium and carpus, and dorsal aspect of forepaw

47

What would an injury to the radial nerve proximal to the tricipital branches do?

Paralysis of extensor muscles of cubital joint, extendors muscles of carpal and digital joints

Flaccid thoracic limb, no weight-bearing, foot is dragged with dorsal surface on the ground

48

What would an injury to the radial nerve distal to the tricipital branches do?

Paralysis of the extensor muscles of the carpal and digital joints

Limb is weight bearing but "knuckling" occurs and dorsal surface of forepaw rests on ground

49

What nerve innervates the palmar aspect of the distal limb?

Medial and lateral branches of median nerve

50

What is the cutaneous branch of the ulnar nerve?

Caudal cutaneous antebrachial

51

What are the muscular branches of the ulnar nerve?

Dorsal and palmar branch

52

Which branch innervates the palmar surface of the carpus, metacarpus & digits?

Palmar branch of ulnar nerve

53

Which branch innervates the lateral surface of the 5th digit?

Dorsal branch of ulnar nerve

54

Which ulnar branch innervates the interosseous muscles?

Palmar branch of ulnar nerve

55

What is the cutaneous area of the musculocutaneous nerve?

Medial aspect of antebrachium

56

What is the cutaneous area of the axillary nerve?

Lateral aspect of brachium
Cranial aspect of antebrachium

57

What is the cutaneous area of the radial nerve?

Craniolateral aspect of antebrachium & carpus

Dorsal aspect of forepaw

58

What is the cutaneous area for the median nerve?

Palmar aspect of metacarpus and digits

59

What is the cutaneous area for ulnar nerve?

Caudal aspect of antebrachium
Palmar surface of carpus, metacarpus, digits
Lateral surface of 5th digit

60

What is the cutaneous area for the brachiocephalic nerve?

cranioventral aspect of chest

61

What is the cutaneous area for the ventral cutaneous branch?

Craniodorsal aspect of scapula

62

What are the nerves on the dorsal forepaw called? What nerves make up this network?

Dorsal common digital nerves (Superficial nerves) - Lateral branch of Superficial radial

63

What are the nerves on the palmar forepaw called? What are the nerve components?

Palmar common digital nerves - median nerve

Palmar metacarpal nerves - Palmar branch of ulnar nerve)