Nervous Tissue

Question 0

What are the nerve fibre types ?

Answer 0

A- alpha myelinated some sensory motor 
A- beta myelinated sensory 
A- delta myelinated special sensory 
Gamma - myelinated sensory 
C - unmyelinated sensory some somatic

Question 1

How many pairs are in each category of spinal nerves

Answer 1

8 cervical 
12 thoracic 
5 lumbar
5 sacral 
1 cochlear

Question 2

What is the inner section of the spinal chord ?

What does it contain ?

Answer 2

Grey matter

Contains cell bodies

Question 3

What is the outer section of the spinal chord ?

What does it contain ?

Answer 3

White matter

Contains myelinated axons

Question 4

What does the dorsal horn contain ?

Answer 4

Posterior part
Location of : first order afferent neurone terminals
Contains cell bodies of second order sensory neurones

Question 5

What does the ventral horn contain ?

Answer 5

Anterior

Contains cell bodies of motor neurones

Question 6

In the brain what is the arrangement of neural tissue ?

Answer 6

Grey matter outside

White matter inside

Question 7

What is the mid brain responsible for ?

Answer 7

Visual and auditory reflexes, pain control

Question 8

What is the hind brain responsible for ?

Answer 8

Control of balance, control of breathing and vital centres

Question 9

What is the thalamus for ?

Answer 9

Sensory centre

Question 10

What does the hypothalamus control ?

Answer 10

Homeostasis, hormone production , motivation , emotional responses

Question 11

What does the cerebellum deal with ?

Answer 11

Sensory, motor, language, memory perceptions, sensory motor integration

Question 12

What sort of matter is the cerebral cortex ?

Answer 12

Grey matter

Question 13

What sort of matter is the corpus callosum ?

Answer 13

White matter

Question 14

What are the areas of the brains / bones of the skull ?

Answer 14

Parietal
Frontal
Temporal
Occipital

Question 15

In the parasympathetic ns where are cell bodies of pre gang ?

Answer 15

Brain stem - cn 3,7,9 and 10

Spinal chord - s 2,3,4

Question 16

In the sympathetic system where are pre gang bodies ?

Answer 16

Thoracic 1 - lumbar 2

Question 17

What length are the pre and post in parasympathetic ?

Where are cell bodies ?

Answer 17

Pre - long
Post - short
Near / in effector organ

Question 18

What are the length of pre/ post in sympathetic ?

Where are the cell bodies ?

Answer 18

Pre and post similar length

In synapse / adrenal medulla

Question 19

Which part of the adrenal gland behaves more like neural tissue ?

Answer 19

Adrenal medulla

Question 20

What do ependymal cells do ?

Where are they found ?

Answer 20

Cns 
Line ventricles 
Produce cerebrospinal fluid 
Selectively permeable 
Barrier function

Question 21

What do Oligodendrocytes do?

Where are they found ?

Answer 21

Cns
Structural support
Forms myelin sheath
Not limited to one axon

Question 22

What do Schwann cells do ?

Where are they found ?

Answer 22

Pns
Myelin sheath
One axon segment
Makes up white matter

Question 23

What makes up the cns ?

Answer 23

Brain spinal chord

Question 24

What makes up pns ?

Answer 24

Spinal nerves

Cranial nerves

Question 25

What are microglia ?

Where are they found ?

Answer 25

Cns
Small
Protect by phagocytosis
Clear cell debris

Question 26

What are astrocytes ?

Where are they found ?

Answer 26

Cns - star shaped 
Maintain chemical environment 
Blood brain barrier, for scar tissue in brain 
Provide nutrients 
Take up excess transmitter

Question 27

What are neuroglia ?

Where are they found ?

Answer 27

Both
Divide and multiply
In disease fill up spaces

Question 28

What are satellite cells ?

Where are they found ?

Answer 28

Pns
Flattered cells
Regulate chemical environment
Involved in repair