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1

central nervous system

brain and spinal cord

2

peripheral nervous system

autonomic and somatic

3

autonomic nervous system

-involuntary
-sends and receives information to regulate the autonomic behaviors of the body

-control heart rate, blood pressure, respiration, digestion

4

somatic nervous system

-voluntary
-sends sensory info to CNS
-sensory + motor input

5

autonomic nervous system subdivisions

sympathetic and parasympathetic

6

sympathetic

-fight or flight
-ramps up our system

7

parasympathetic

-rest and digest
-decreases functions

8

advantage of having the sympathetic and parasympathetic systems

having two systems that do different functions increases the speed which helps us survive

9

grey matter

-cell bodies of our neurons
-Brain: outside
-Spinal cord: inside

10

white matter

-axons wrapped in myelin
-brain: inside
-Spinal cord: outside

11

what is a nerve

-a cable-like bundle of axons in the peripheral nervous system

-large group of neurons

12

brainstem

-midbrain, pons, medulla

13

medulla

-responsible for vital reflexes and functions needed to stay alive

-respiration, heart beat

14

pons

-controls muscle movements/functions

-walking
-sleep/ arousal

15

cerebellum

-balance and coordination
-helps regulate motor movements
-important for shifting attention between auditory and visual stimuli

16

midbrain

-movement
-motor functions
-some visual and auditory = localization stuff

17

thalamus

-relay station for all sensory information

-except olfactory

18

hypothalamus

-four F's: feeding, fighting, fleeing, sex

19

pituitary gland

produces hormones

20

corpus callosum

-connects the left and right hemispheres

21

limbic system

-group of structures involved emotions

-cingulatee gyrus, amygdala, hypothalamus, hippocampus

-associated with motivation, emotion, drives, and aggression

22

hippocampus

-memory functions

23

amygdala

-involve with fear response

24

basal ganglia

-voluntary movement
-reward and learning
-motor control

-damage seen in Huntington's and Parkinson's disease

25

cerebral cortex

-whole layers outside of the brain
-made of gray matter (cell bodies)
-info processing

26

ventricles

-fluid filled spaces in the interior of the brain
- Hollow filled with CSF
-Cushion the interior of the brain
-Also helps get rid of waste


-With age and all sorts of disorders the ventricles get bigger
Due to loss of tissue so they take up the space

27

frontal lobe

- motor cortex, decision making, planning, impulse control, higher level thinking

-Humans have higher prefrontal cortex than all other species

28

parietal lobe

-posterior (behind) central sulcus

-Somatosensory (sense of touch)

-Visual association cortex = higher level visual processing

- Attention processing (visual, etc)

29

temporal lobe

-auditory functions
-Hippocampus = memory
-Olfactory (smell)
-Primary auditory cortex

30

occipital lobe

-towards the back of the head
-visual functions
-primary visual cortex