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Flashcards in Equine Neck Deck (69)
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1

What structures are palpable in neck of horse

1. Point of shoulder
2. Scapular spine
3. Scapular cartilage
4. Withers
5. Trachea
6. Manubrium
7. Crest of Neck
8. Angle of mandible
9. Poll
10. Thyroid gland
11. Cervical vertebrae (wing of atlas palpable)

2

suprascapular nerve horse

prone to injury because horses lack acromion leaving it more exposed and more likely to be injured

3

where do you palpate point of shoulder

cr division greater tubercle of the humerus

4

where do you palpate scapular cartilage

btwn spine of scapula and withers

5

What are the withers

correspond to spinous processes T2-T8

6

Where is trachea located/ palpable

ventral in neck

7

what is manubrium

cr most aspect of sternum

8

where is crest of the neck located

dorsal to vertebra, contains fat

9

where is the thyroid gland located

proximal 1/3 of neck cd to larynx and dorsolateral to trachea, moveable, bilobed

10

AO joint

located between atlas and skull; CSF tap uses AO jt by flexing head toward limb to access it, usually go in C1 or C2

11

pectoral grooves

lateral and median pectoral grooves

12

Median pectoral groove boundaries

descending component of superficial pectoral muscles bilaterally

13

Median pectoral groove clinical significance

Manubrium is palpable at proximal most aspect of groove, can use to find sternum for bone marrow aspiration

14

Lateral pectoral groove boundaries

medial- deciding component of superficial pectoral muscle
lateral- brachiocephalicus (cleidomastoideus)

15

What lies in lateral pectoral groove

1. Cephalic vein
2. Branch of superficial cervical artery

16

Clinical application pectoral grooves

avoid vessels in lateral pectoral groove when using pecs for IM shots; hold thumb in median groove and index finger in lateral groove and give shot in middle

17

Location of dorsal branch accessory nerve

runs between omotransversarius (dorsal border) and trapezius

18

dorsal branch accessory nerve innervates

provides motor innervation to trapezius and splenius

19

location ventral branch accessory nerve

runs deep to wing of atlas and converges with ventral branch C1

20

ventral branch accessory nerve innervates

provides motor innervation to sternocephalicus and brachiocephalicus (cleidomastoideus)

21

general path of accessory nerve

exists skull via tympanooccupital fissure; dorsal and ventral branch diverge close to C1

22

draw and label basic spinal nerve

DR -> DRG -> SN -> DB -> medial branch DB or lateral branch DB
VR -> SN -> VB
SN -> CB

23

medial branch of DB

Dorsal cutaneous branch in cervical region

24

lateral branch of DB

dorsal cutaneous branch in thoracic and lumbar regions

25

boundaries of virbog's triangle

1. Tendon of sternocephalicus
2. Ramus of mandible
3.Linguofacial vein

26

Boundaries of jugular groove

Dorsal: brachiocephalicus (cleidomastoideus)
ventral: sternocephalicus
Medial: cr 1/3 neck bounded by omohyoideus
Lateral: Cd 2/3 of neck cutaneous coli

27

Clinical significance omohyoideus and jugular groove

separates ext jug from deeper carotid sheath -> lower chance IV medication going into artery so give IV shots in cr 1/3 neck in horses

28

clinical significance of cutaneous coli

can make it hard to raise jugular vein if muscle is contracted

29

Carotid sheath formed by

deep cervical fascia

30

boundaries of carotid sheath

1. Deep to omohyoideus cr 1/3 of neck
2. lateral to deep fascia of esophagus
3. Bounded ventrally by trachea?
4. bounded dorsally by longs Colli and scalenus?