The Nervous System

Question 1

Central Nervous System

Answer 1

brain and spinal cord; breathing, body temp, etc.

Question 2

Peripheral Nervous System

Answer 2

cranial and spinal nerves; communication lines between the CNS and the rest of the body

Question 3

Sensory (afferent) division

Answer 3

brings info towards CNS

Question 4

Motor (efferent) division

Answer 4

takes info away from CNS

Question 5

Somatic Nervous System

Answer 5

voluntary; skeletal muscles

Question 6

Autonomic Nervous System

Answer 6

involuntary; cardiac muscles, smooth muscles

Question 7

Sympathetic division

Answer 7

activates body during activity (adrenaline); and shuts down what doesn’t matter (digestion)…..fight or flight

Question 8

Parasympathetic division

Answer 8

rest and digest; conserves energy

Question 9

Neuroglia

Answer 9

supports cells and amplifies signal

Question 10

Neurons

Answer 10

transmit signals

Question 11

Astrocytes

Answer 11

part of CNS; creates barriers between blood and CNS; controls chemical environment around neurons

Question 12

Microglia

Answer 12

part of CNS; immune cells for neurons; absorb debri

Question 13

Ependymal

Answer 13

part of CNS; at barrier between blood plasma and cerebral spinal fluid; filters blood plasma and produces CSF

Question 14

Oligodendrocytes

Answer 14

part of CNS; plasma membrane that wraps around axons (myelin sheaths); mostly lipids (doesn’t conduct/polar); insulation allows for info to travel long distances