Lecture 5 (DONE)

Question 1

What are the basic subdivisions of the vertebrate nervous system?

Answer 1

1. CNS & PNS
2. Somatic Vs. Automonic

Question 2

What is the Somatic System?

Answer 2

“voluntary” system

Question 3

What are the parts of the somatic system?

Answer 3

1. Brain “muscles” -> skeletal or voluntary muscle
2. Sensory organs -> Brain

Question 4

What is the Autonomic system?

Answer 4

“involuntary” system. regulates functions of internal organs.

Question 5

Define the sympathetic system.

Answer 5

Uses energy (FLIGHT OR FIGHT, EMERGENCY)

Question 6

What does the sympathetic system do?

Answer 6

-increase HR & BP
-decrease digestion & mucus flow
-signals originate in hypothalamus

Question 7

Define the parasympathetic system.

Answer 7

conserve energy (“rest and digest”, homeostasis)

Question 8

What does the parasympathetic system do?

Answer 8

Decrease HR & BP
-Increase digestion and mucus

Question 9

Where do signals originate in the parasympathetic system?

Answer 9

vagus nerve, oculomotor nerve, pelvic nerve

Question 10

Define nerve.

Answer 10

A bunch of axons traveling together with neurons.

Question 11

Why do people faints?

Answer 11

The sympathetic nervous system sends too many signals. In response, the parasympathetic system sends even more to fight. The sudden drop in HR and BP leads to lack of blood flowing to the brain.

Question 12

DIRECTIONAL TERMS

Answer 12

LOOK AT PAPER DIAGRAM

Question 13

What are the 3 sections of the brain?

Answer 13

Hindbrain, Midbrain, and Forebrain
HMF

Question 14

What are the 3 sections in the hindbrain? Cere se pone medicina

Answer 14

Cerebellum, pons, and Medulla
Cere se pone medicina

Question 15

Define Medulla & its functions. MEDREG

Answer 15

regulation of body maintenance ;
vagal nerve, medullary respiratory center, and raphe nucleus

Question 16

Define Pons. S&M.

Answer 16

Somatic connections ;
-sensory neurons & motor neurons

Question 17

Define Cerebellum and its functions. does laundry

Answer 17

Many folds, involved in movement control ; coordinated movements for multiple areas.

Question 18

What are the sections in the midbrain? sup-in

Answer 18

Superior Colliculus & Inferior Colliculus

Question 19

What are the Superior Colliculus & Inferior Colliculus functions?

Answer 19

low level sensory info ;; eye to ear, quick inputs. subconscious

Question 20

What are the important parts of the forebrain?

Answer 20

Cerebral cortex, subcortical structures, thalamus, and hypothalamus

Question 21

What are the 4 lobes of the cerebral cortex?

Answer 21

frontal, parietal. occipital, and temporal

Question 22

Define the function of the frontal lobe.

Answer 22

Motor, language production, executive functioning

Question 23

Define the function of Occipital lobe.

Answer 23

Vision from contralateral space

Question 24

Define the function of partial lobe.

Answer 24

Processes touch.

Question 25

Define the function of temporal lobe

Answer 25

language comprehension, sounds, visual info.

Question 26

What is in the spinal column?

Answer 26

Spinal cord and vertebrae

Question 27

What happens with a spinal cord injury?

Answer 27

Everything below the lesion will no longer work and have communication with the brain.

Question 28

What are 3 ways to stop breathing (EXAM ?)

Answer 28

1. medullary respiratory center
2. Drugs that are agonists of the Ach system at neural muscular junction in diaphragm
3. Lesion at or above c3

Question 29

What do the 12 cranial nerves do?

Answer 29

Like any other nerves but in the head / comm. with CNS brain and PNS senses and muscles head

Question 30

What does cranial nerve 10 do?

Answer 30

below the head (heart, lungs, digestive system) ; vagus nerve

Question 31

What does the somatic system nerves do?

Answer 31

Sensory input, motor output, motor and sensory movement

Question 32

(DONEWhat does the Autonomic system nerves do

Answer 32

Vagus ; parasympathetic system (projects and receives)