Layout of Nervous System

Question 1

What are the two parts of the Nervous system

Answer 1

1. Central Nervous System (CNS): brain and spinal cord
2. Peripheral Nervous System (PNS): nerves outside CNS

Question 2

How many pairs of cranial nerves and spinal nerves are there?

Answer 2

12 pairs of cranial
31 pairs of spinal
(some are just sensory or just motor, some are mixed)

Question 3

Efferent or motor neurons are divided into 2 groups

Answer 3

1. Somatic Nerves
2. Autonomic Nerves

Question 4

Somatic Nerves

Answer 4

-voluntary
-skeletal system
-you control them

Question 5

Autonomic Nerves

Answer 5

-involuntary
-medulla oblongata control heart rate, breathing, and other internal functions
-Sympathetic nervous system = fight or flight, increase heart rate, breathing, and making more glucose available cells
-Parasympathetic nervous system = rest or digest, work with digestive organs and bladder