Exam 3: Equine Head

Question 1

blind ended pouch important for passing nasogastric tube.

Answer 1

Nasal diverticulum

Question 2

How should you aim your nasogastric tube?

Answer 2

ventrally to avioid diverticulum and ethmoid turbinates

Question 3

Area from choanea to palatopharayngeal arch

Answer 3

nasopharynx

Question 4

area from palatoglossal arch to epiglotis

Answer 4

oropharynx

Question 5

area from palatopharyngeal arch to esophagus

Answer 5

laryngopharynx

Question 6

What are the two branches of the external jugular vein in the horse?

Answer 6

linguofacial

maxillary

Question 7

What are the 2 br. of the linguofacial v.

Answer 7

lingual and facial

Question 8

What braches off the facial v.

Answer 8

deep facial

Question 9

What v. drains the orbit?

Answer 9

deep facial

Question 10

What does the facial and maxillary vv. combine to form?

Answer 10

transverse facial and buccal vv.

Question 11

What duct runs with the facial a. and v.?

Answer 11

Parotid duct

Question 12

Where does the parotid duct empty?

Answer 12

buccal cavity at level of upper PM4

Question 13

Which facial a. is found in the horse but absent in ruminants?

Answer 13

internal caroted a.

Question 14

What are the two br. of the common carotit a. in the horse?

Answer 14

1. cranial thyroid a.

2. internal carotid a.

Question 15

Which a. of the equine head is associated with the carotid sinus?

Answer 15

internal carotid a.

Question 16

What are the 5 aa. of the external carotid a.

Answer 16

1. occipital
2. cranial laryngeal
3. linguofacial a.
4. caudal auricular a.
5. superficial temporal

Question 17

What are the 4 a. of the maxillary a.?

Answer 17

1. Inferior alveolar a.
2. external ophthalmic a. (NR)
3. Palatine aa. (NR)
4. infraorbital a.

Question 18

2 arteries of the equine head you can take a pulse on?

Answer 18

1. transverse facial a.

2. facial a.

Question 19

What are the 2 br. of the facial n in the equine?

Answer 19

1. auriculopalpebral n.

2. Buccal branches

Question 20

What are the 3 br. of the trigeminal n. in the equine

Answer 20

1. Mandibular
2. Maxillary
3. ophthalmic

Question 21

What are the 7 br. of the mandibular branch of the trigeminal n.

Answer 21

BLIMA

1. Buccal n.
2. lingual n.
3. inferior alveolar n.
4. mental nn.
5. auriculotemporal n.
6. mylohyoid n (NR)
7. masticatory n. (NR)

Question 22

Where does the maxillary br. of the trigeminal n. go?

Answer 22

infraorbital

Question 23

Where does the ophthalmic br. of the trigeminal n. go?

Answer 23

supraorbital

Question 24

Br. of the maxillary n. in bovine only. sends sensation to horn

Answer 24

cornual n.

Question 25

Which n. runs along the linguofacial a. in the equine

Answer 25

hypoglossal

Question 26

Damage to which n. causes laryngeal paralysis in equine.

Answer 26

recurrent laryngeal n.

Question 27

only m. that opens the glottis:

Answer 27

cricoarytenoideus dorsalis

Question 28

cricothyroid m. is innervated by which n. in both the equine and canine?

Answer 28

cranial laryngeal

Question 29

Which CN. causes pupil constriction?

Answer 29

CN3

Question 30

Which CN innervates salivary and lacrimal glands

Answer 30

CN 7

Question 31

Which CN innervates just salivary glands?

Answer 31

CN9

Question 32

Which CN innervates thoracic and abdominal viscera

Answer 32

CN10

Question 33

What are the 8 superficial m. of the eq. head?

Answer 33

1. platysma m. 2. orbicularis oculi m. 3. orbicularis oris 4. levator nasolabialis m. 5. caninus m. 6. depressor labiii inferioris 7. rostral auricular mm. 8. caudal auricular mm. also pharyngeal mm

Question 34

what are the 4 deep mm. of the equine head?

Answer 34

1. temporalis m. 2. masseter m. 3. Pterygoid mm. 4. Digastridus m.

Question 35

What are the 5 hyoid mm. of the eq.

Answer 35

1. Sternohyoideus m. 2. thyrohyoideus m. 3. mylohyoideus m. 4. geniohyoideus m. 5. omohyoideus m.

Question 36

Which m. forms the medial border of the jugular groove?

Answer 36

omohyoideus m.

Question 37

Which m. separates external jugular from common carotid a.

Answer 37

omohyoideus

Question 38

Which m. is important for flehmen's response in eq.

Answer 38

levator labii superioris

Question 39

When a stallion lifts his lips to pull air throuch the incisive papilla

Answer 39

flehmen's response

Question 40

What are the borders of the jugular groove

Answer 40

dorsal: brachiocephalicus m. ventral: sternocephalicus m.

Question 41

What are the 3 salivary glands of the eq.

Answer 41

1. mandibular salivary gland 2. sublingual salivary gland 3. parotid salivary gland

Question 42

What are the 5 lympoid structures of the eq. head?

Answer 42

1. mandibular 2. parotid lymph node 3. palatine tonsil 4. lingual tonsil 5. retropharyngeal lymph node

Question 43

Which tonsil can be found in the souft palate of the horse?

Answer 43

palatine

Question 44

Which tonsil can be found at the base of the eq. tongue?

Answer 44

lingual

Question 45

constricted pupil

Answer 45

miotic

Question 46

Dilated pupil

Answer 46

mydriatic

Question 47

what is corpora nigra

Answer 47

acts to shade the retinal