Nervous system -JM

Question 1

What are multipolar neurones?

Answer 1

The CNS and motor neurones

There have lots of dendrites

Question 2

What are bi-polar neurones?

Answer 2

Relay neurones

They have an axon and a dendritic process

Question 3

What are pseudo-unipolar neurones?

Answer 3

Sensory neurones
From CNS to periphery
Cell body out the side

Question 4

What are neuroglia?

Answer 4

Cells that support the neurones

Question 5

What is a ganglion?

Answer 5

A bundle of nerve cell bodies outside the CNS

Question 6

What are plexi?

Answer 6

A big network of peripheral nerves

Question 7

What are axons wrapped in?

Answer 7

Endoneurium

Question 8

What is a bundle of axons called?

Answer 8

A fascicle

same as a bundle of muscle fibres

Question 9

What is a fascicle wrapped in?

Answer 9

Perineurium

Question 10

What are multiple fascicles wrapped in?

Answer 10

Epineurium

Question 11

What are intumescences?

Answer 11

Enlargements of the spinal cord due to lots of cell bodies/plexi going to the limbs

Question 12

What is the corda equina?

Answer 12

Tasselled end of the spinal cord where there is disproportionate growth

Question 13

What is found at the dorsal horn of the grey matter in the spinal cord?

Answer 13

Sensory neurones

Question 14

What is found in the ventral horn of the grey matter in the spinal cord?

Answer 14

Somatic motor neurones and their cell bodies

Question 15

Where do somatic motor neurones go?

Answer 15

Skin and skeletal muscle

Question 16

What is in the lateral horn in the grey matter in the spinal cord?

Answer 16

Cell bodies of the preganglionic neurones of the sympathetic nervous system

Question 17

What makes up the white matter?

Answer 17

Internal nerves forming bundles of myelinated axons

Question 18

Wht is in the dorsal root ganglia?

Answer 18

The cell bodies of the sensory neurones

Question 19

How many neurones does the somatic nervous system have? (conscious)

Answer 19

1

Question 20

How many neurones does the autonomic nervous system have?

Answer 20

2

Question 21

In which autonomic nervous system is the preganglionic neurone shorter?

Answer 21

Sympathetic

Question 22

How many cranial nerves are there?

Answer 22

12

Question 23

How are the spinal nerves arranged?

Answer 23

C1-C7 are cranial to vertebrae

C8-Cd5 are caudal to vertebrae

Question 24

What are rami?

Answer 24

Branches off of the spinal cord

Question 25

What are the 2 rami?

Answer 25

Dorsal ramus ventral ramus

Question 26

What does the dorsal ramus do?

Answer 26

supplies dorsally located structures and epaxial muscles

Question 27

What does the ventral ramus do?

Answer 27

Supplies the other muscles and skin to the dorsal ramus

Question 28

What are dermatome?

Answer 28

Stripes of skin that are innervated by one pair of nerves

Question 29

What are meninges?

Answer 29

Membranes surrounding the brain and spinal cord

Question 30

What are the 3 layers o the meninge?

Answer 30

Dura mater Arachnoid mater Pia mater

Question 31

Where is the epidural space?

Answer 31

The space between the bone periosteum and the dura mater

Question 32

What is inside the epidural space?

Answer 32

Fat and blood vessels | Only in the spinal cord

Question 33

Where is the subarachnoid space?

Answer 33

Between the arachnoid mater and the pia mater

Question 34

What is the subarachnoid space filled with?

Answer 34

Cerebrospinal fluid

Question 35

What is the subdural space?

Answer 35

Between the dura mater and the arachnoid mater | Shouldn't be here

Question 36

What is the venous sinus in the brain?

Answer 36

The area for the CSF to flow back into

Question 37

Where I the CSF made?

Answer 37

In the choroid plexus

Question 38

What is the role of CSF?

Answer 38

Protect CNS, nourishes and maintains homeostasis

Question 39

Where can you sample CSF?

Answer 39

Cisternal tap - small animals | Lumbar puncture - large animals