Whole Topic Test - Innervation

Question 1

What are two examples of thermoreceptors?

Answer 1

Free nerve endings & Krause endings

Question 2

Motor innervation of the tongue

Answer 2

Hypoglossal nerve (XII)

Question 3

What nerves control Prehension (chewing)

Answer 3

Facial nerve, glosso-pharyngeal & motor branch of the trigeminal nerve

Question 4

What is a somite?

Answer 4

The embryological precursor to a dermatome/area of mesoderm tissue

Question 5

Function of meissners plexus

Answer 5

regulating glandular secretions

Question 6

how does the venous sinus enhance the signals recieved from tactile hairs

Answer 6

The blood ripples in response to hair motion, creating a larger mechanical signal that is transmitted by the nerves

Question 7

Horse oesophagus

Answer 7

Vagus and glossopharyngeal

Question 8

what is a dermatome?

Answer 8

an area of the dermis which is innervated by the same nerve.

Question 9

What plexus is found in the submucosa

Answer 9

Meissners plexus

Question 10

general taste & sensation of the caudal 1/3

Answer 10

Glossopharyngeal & vagus (IX & X)

Question 11

Which nerve provides innervation to the mandibular teeth?

Answer 11

inferioralveolar nerve (mandibular n.)

Question 12

What are we able to achieve via the use of autonomous zones

Answer 12

Local anaesthetic and diagnosis of peripheral nerve damage

Question 13

Which nerves control the involuntary phase of swallowing (deglutition)

Answer 13

Facial, glossopharyngeal, vagus

Question 14

What plexus is found in the muscularis

Answer 14

Auerbacchs/Myenteric plexus

Question 15

What does the splanchnic nerve control in the rumen

Answer 15

Lil bit of contraction & arteriole diameter (diverting blood flow)

Question 16

What are the peristaltic pacemakers in the intestines?

Answer 16

ICC (intersitial cells of Cajal)

Question 17

What nerve is blocked during the process of cattle dehorning?

Answer 17

the cornual nerve

Question 18

What occurs to drive the positive feedback loop in a fever

Answer 18

The set point of the hypothalamus resets to a higher value, allowing the body temperature to rise higher

Question 19

Examples of glandular secretions in the stomach

Answer 19

gastric pits - HCL, Pepsinogen, Mucin, Gastic hormones

Question 20

What is the clinical relevance of dermatomes?

Answer 20

We can use this is to provide effective local anaesthetic i.e. line blocks in cattle

Question 21

Which gland sits below the ear?

Answer 21

Parotid gland

Question 22

What do each of these mechanoreceptors detect:
1- Pacinian corpuscle
2- Meissners corpuscle
3- Merkels disc
4- Ruffini’s ending

Answer 22

1- fast vibrations
2- texture change
3- sustained pressure
4- skin stretch

Question 23

which nerve innervates the mandibular/sublingual gland?

Answer 23

Facial nerve (V)

Question 24

What are nociceptors?

Answer 24

Free nerve endings to detect pain

Question 25

What structure aids the function of tactile hairs as receptors

Answer 25

The venous sinus

Question 26

What nerves innervate the pancreas?

Answer 26

Vagus nerve & Spinal sensory nevre

Question 27

What are the three kinds of receptors found in the epidermis/dermis?

Answer 27

Mechanoreceptors, Nociceptors, Thermoreceptors

Question 28

Which section of the tooth contains the nerves and blood vessels?

Answer 28

Pulp

Question 29

Which nerve provides innervation to the parotid gland

Answer 29

Glossopharyngeal nerve (IX)

Question 30

What sympathetic nerves innervate the rumen?

Answer 30

The splanchnic nerve

Question 31

Which two glands share a capsule?

Answer 31

Mandibular and sublingual glands

Question 32

What does the Vagus nerve control in the rumen?

Answer 32

Both sensory and motor functions, as well as gastric groove reflex

Question 33

What do issues swallowing often arise because of?

Answer 33

Brain lesions

Question 34

Function of the myenteric plexus

Answer 34

Regulation of smooth muscle contractions in the GIT

Question 35

What effect does the parasympatheic system have on gut function

Answer 35

Enhances it to increase the rate of digestion i.e. gastric motility & enzyme secretion (rest/digest)

Question 36

What effect does the sympatheic system have on gut function

Answer 36

Reduces gut function to divert blood supply to muscles & heart (fight/run)

Question 37

What parasympathetic nerves innervate the liver?

Answer 37

The vagus nerve

Question 38

What sympathetic nerves innervate the liver?

Answer 38

Celiac plexus

Question 39

What parasympathetic nerves innervate the rumen

Answer 39

Predominantly the vagus nerve

Question 40

What is the process by which the early CNS is formed

Answer 40

Neurulation

Question 41

which nerve divides into maxillary and mandibular branches?

Answer 41

Facial nerve (V)

Question 42

What is an area of skin that is supplied by one spinal nerve called?

Answer 42

An autonomous zone

Question 43

gustatory innervation of the rostral 2/3 of the tongue

Answer 43

chorda tympani branch of the facial nerve (VII)

Question 44

What part of the CNS regulates homeostasis?

Answer 44

Hypopthalamus

Question 45

sensory innervation of the rostral 2/3 of the tongue

Answer 45

lingual branch of the mandibular division of the trigeminal nerve (V)

Question 46

which nerve provides innervation to the maxillary teeth?

Answer 46

infraorbital nerve (maxillary n.)