Neuron

Question 1

What are the three functions of the nervous system?

Answer 1

1. Sensory Input
2. Integration
3. Motor output

Question 2

What is the purpose of sensory input

Answer 2

Monitor changes (stimuli) throughout the body as a result of the sensory information captured by the nervous system

Question 3

What is the purpose of integration

Answer 3

The nervous system processes the stimuli it receives in order to issue a reaction that is most appropriate for the problem at hand

Question 4

What is the purpose of motor output?

Answer 4

Stimulates the body to react in a certain way to the stumulus. This can be an increased heart rate or breathing rate. This is done via initiating the production of hormones from the muscles or glands.

Question 5

Describe the difference between white matter and gray matter in the brain

Answer 5

1. Gray matter: Made up of UN-myelinated axons.
2. White matter: Made up of myelinated axons.

Question 6

what type of cell in the nervous system causes cancer and why?

Answer 6

The neuroglial cells produce cancer because they’re the only ones that can divide (perform mitosis) unlike neuron which can’t.

Question 7

Which types of nervous cells are multipolar, bipolar, and unipolar?

Answer 7

1. Motor: Multipolar
2. Sensory: Unipolar
3. Interneuron: Bipolar

Question 8

Function of the astrocyte

Answer 8

1. maintain chemical environment in brain
2. Separates blood from the brainl forms barrier-caoillaries, neurons