Introduction To The Nervous System (lesson 4)

Question 1

What parts include the CNS?

Answer 1

Includes the brain and spinal cord

Question 2

Whats included in the PNS and what does it do?

Answer 2

Includes all other nerves except the brain and bring info to and from the CNS

Question 3

What part of the brain controls learning and memory?

What is it connected by?

Answer 3

Cerebrum

Two hemispheres connected by the corpus callosum, each controlling the opposite side of body side

Question 4

What are the four hemispheres the brain is divided into?

Answer 4

1) Parietal lobe= Voluntary muscle movement (VMM)
2) Frontal lobe= Speech and thinking (S+T)
3) Temporal lobe= Hearing, smelling and tasting (HMT)
4) Occipital lobe= Sight

Question 5

What part of the brain..

Involuntary actions, mainly muscle coordination and balance. Allows body to move smoothly and important in muscle memory

managing all your thoughts, actions, and input from senses

Answer 5

cerebellum

Question 6

What are the three important regions of the forebrain structures?

Answer 6

1) Thalamus
* Receives most sensory impulses from body (not smell)

2) Hypothalamus
* Manages body temp, water balance, appetite, BP, intestinal muscle activity, sleep, thirst, emotions and sex drive

3) Pituitary Gland
* Not nervous tissue, part of endocrine system

Question 7

What are the two main parts of the brain stem?

Answer 7

1) Medulla Oblongata
2) Pons

Question 8

What type of hormones is realized in the sympathetic division?

Answer 8

Adrenaline and epinephrine

Question 9

Explain the “fight, flight (or freeze) respond”

Answer 9

when in danger, the hypothalamus release adrenaline and epinephrine, increasing heart rate, dilating pupils, tightening muscles, and slowing digestion.