2. Nervous System

Question 1

Cranial nerve 1 - name, type, distribution

Answer 1

Ofactory, sensory, telencephalon

Question 2

Cranial nerve 2 - name, type, distribution

Answer 2

Optic, sensory, diencephalon

Question 3

Cranial nerve 3 - name, type, distribution

Answer 3

Oculomotory, motor, mesencephalon

Question 4

Cranial nerve 4 - name, type, distribution

Answer 4

trochlear, motor, mesencephalon

Question 5

Cranial nerve 5 - name, type, distribution

Answer 5

trigeminal, mixed, metencephalon

Question 6

Cranial nerve 6 - name, type, distribution

Answer 6

abducens, motor, myelencephalon

Question 7

Cranial nerve 7 - name, type, distribution

Answer 7

facial, mixed, myelencephalon

Question 8

Cranial nerve 8 - name, type, distribution

Answer 8

vestibular, sensory, myelencephalon

Question 9

Cranial nerve 9 - name, type, distribution

Answer 9

glossopharyngeal, mixed, myelencephalon

Question 10

Cranial nerve 10 - name, type, distribution

Answer 10

vagus, mixed, myelencephalon

Question 11

Cranial nerve 11 - name, type, distribution

Answer 11

spinal accessory, motor, myelencephalon

Question 12

Cranial nerve 12 - name, type, distribution

Answer 12

hypoglossal, motor, myelencephalon

Question 13

Brachial plexus - spinal nerves that derive the plexus in general and in cattle/sheeps/pigs/dogs

Answer 13

3/4 cervical vertevrae and first 1-2 thoracic nerve
cattle/sheep/pigs/dogs: last 3 cervical vertebrae and first thoracic nerves

Question 14

lumbarsacral plexus - spinal nerves that derive the plexus in general and in horses/cattle/sheep, pigs, dogs

Answer 14

last few lumbar and first few sacral nerves
- horses/cattle/sheep - last 3 lumbar vertebrae and first two sacral
- pigs: last 3 lumbar and first sacral
- dogs: last 5 lumbar and first 3 sacral

Question 15

the segments of the spinal cord from which sympathetic and parasympathetic system are derived

Answer 15

sym: thoracic and lumbar segements - thoracolumbar
para: brain and sacral
- craniosacral

Question 16

where do the cervical nerve 1 through 8 emerge

Answer 16

small opening between the foramina

Question 17

where do the thoracic, lumbar and sacral nerves emerge

Answer 17

through the intervertebral foramina

Question 18

sympathetic system: spinal nerves they’re derived from, preganglionic fibers, location of ganglia, organs they innervate

Answer 18

1. thoracic and lumbar segments (thoracolumbar)
2. transverse the ventral root of thoracic or lumbar spinal nerve, enters the spinal nerve proper and branches from it
3. near organs supplied before they synapse w/ postganglionic nerves
4. smooth muscle, cardiac muscle, and glands

Question 19

parasympathetic system: spinal nerves they’re derived from, preganglionic fibers, location of ganglia, organs they innervate

Answer 19

1. in the brain and sacral segments (craniosacral)
2. arise from nerve bodies in the brain and distributed in occulomotor, facial, glossopharyngeal or vagus
3. between pre and post in vertbral and prevertebral
4. organs supplies by the pelvic nerve

Question 20

Answer 20

Question 21

Answer 21

Question 22