Structure of the nervous system | Organ Systems

Question 1

2 main structural parts: CNS and PNS
Forebrain - cerebrum
Midbrain - midbrain - on top brainstem
Hindbrain - pons, medulla, cerebellum
SC

Answer 1

Nervous sys

Question 2

brain and SC

Answer 2

CNS -

Question 3

all over rest body; 2 types structures: nerves; ganglion (lumps attached to nerves and contain soma of nerves); cranial nerves (exit brain - 12 pairs) or spinal nerves (exit SC - 31 pairs)

Answer 3

PNS -

Question 4

in front and back - efferent in front and afferent in the back; come together in spinal nerves - mixed nerves

Answer 4

Spinal nerves form from spinal nerve roots -

Question 5

original nerves see with naked eye; very far away - microscopic nerves

Answer 5

As travel from proximal origin all nerves branch repeatedly -

Question 6

info into CNS

Answer 6

Afferent neurons -

Question 7

info out CNS into periphery

Answer 7

Efferent neuron -

Question 8

cerebrum (4 lobes - part on top and biggest on top); cerebellum

Answer 8

Brain diff parts:

Question 9

top to bottom: midbrain (connects to cerebrum), pons, medulla oblongata
brainstem hooks onto SC

Answer 9

brainstem: