antatomy nervous and nervous system

1.) What are the functional and structural differences between gray matter & white matter?

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*What are dendrites responsible for?

grey matter: stained, may cell bodies and dendrites, associated with PNS, process info

white matter: unstained, associated with CNS, communicate

-transmitting signals

2.) What are the major divisions of the nervous system?

- -Define

- -Define

CNS: brain and spinal cord

PNS: everything else

3.) True or False : Is the nervous system a complex organ system?

true

4.)What type of cells are present in the tissue with both the CNS & PNS?

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nuerons: bases of nervous tissue

glial: framework and support of the neurons

'6.) What is the first major function of the nervous system:

a.) sensation

b.) response

c.) both of the above

sensation

7.) SNS: Define

somatic nervous system: conscious perception and voluntary response

8.)ANS: Define

autonomic nervous system: responsible for invoulntary movements and regulating organs

9.) ENS: Define

enteric nervous system: controlling smooth muscle ie: digestive tract

10.) Blood Brain Barrier: Choose

a.)Physiological barrier that keeps many substances that circulate in the rest of the body from getting into the central nervous system

b.) A barrier that protects the brain and is the thickest in the body

c.) Stands for Backstreet Boys Back

a.)Physiological barrier that keeps many substances that circulate in the rest of the body from getting into the central nervous system

11.) The amount of change that is dependent on the strength of the stimulus is called__________________?

a.)graded potential

b.)graded power

c.)graded stimuli

a.)graded potential

12.) True or False:

When the molecular signal binds to the receptor the cell membrane of the target neuron changes its electrical state and a new graded potential begins.

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true

13.) What are the 3 primary functions of the spinal cord?

a.) send motor commands from brain to body

b.) send sensory information from the body to the brain

c.) coordinates reflexes

14.) What is the definition of Anatomy?

study of the body

15.) What is the definition of Physiology?

study of the movement of the body