Nervous Tissue

Question 1

What are the two components of nervous tissue?

Answer 1

Neurons the nerve cells and glial cells the support cells

Question 2

What are the neuroglial cells of the CNS?

Answer 2

1. Astrocytes
2. Oligodendrocytes
3. Microglia
4. Ependymal cells

Question 3

What are the glial cells of the CNS?

Answer 3

1. Satellite cells

2. Schwann cells

Question 4

What is the function of astrocytes?

Answer 4

Act as a blood brain barrier and provide nutrients to neurons and take up excess neurotransmitters

Question 5

What is the function of microglia?

Answer 5

Phagocytose microbes

Question 6

What are epndymal?

Answer 6

Epithelial cells which line ventricles of the brain and central canal of the spinal chord ans form the cerebrospinal fluid and assist its ciruclation - they contain microglia

Question 7

What is the two major difference between oligodendrocytes and schwann cells?

Answer 7

Scwann cells PNS while oligo CNS and schwann cells only associated with one axonal segments and oligos not

Question 8

What are satelite cells?

Answer 8

Flattened cell arranged around the cell bodies of neurons to regulate their enviroment and repear them

Question 9

What are common tumoirs of the brain called?

Answer 9

Gliomas

Question 10

Give an examples of a demyelinating disease?

Answer 10

MS is an autoimmune disease and Gullain Barre Syndrome is an immune response where macrophages strip myelin from axons in PNS