Nervous System

Question 1

What is a neuron

Answer 1

A specialized cell in the nervous system

Question 2

What does a neuron do

Answer 2

Sends and receives information to and from the Brian (neurotransmission)

Question 3

How does a neuron work?

Answer 3

Through electrical impulses created by depolarization of sodium ions. Sends signals down the axon to the terminal buttons, the vesicles move toward the end and release neurotransmitters across the synaptic gap to send a message.

Question 4

What is a neurotransmitter

Answer 4

A chemical messenger which carries signals between neurons and other cells

Question 5

ACh
(Acetylcholine)

Answer 5

-most common
-CNS and PNS
- basic autonomic functions

Question 6

Dopamine

Answer 6

• regulatory motor activity
• mood, sensory perception, and attention

Question 7

Glutamate

Answer 7

• excitatory transmitter
• learning and memory

Question 8

Epinephrine

Answer 8

• adrenaline
• feeling of revved up / on edge
• fight or flight in autonomic NS

Question 9

Serotonin

Answer 9

• attention, sleep, eating, mood, pain regulation, and complex cognitive functions
• in brain, spinal cord, stomach

Question 10

GABA

Answer 10

-inhibitory transmitter
- stops brain from becoming overexcited

Question 11

Lizard Brain

Answer 11

• basic functions / survival

Question 12

Mammalian Brain

Answer 12

• more complex feelings and reactions

Question 13

Human Brain

Answer 13

• logic and reasoning
• thinking, executive functioning

Question 14

Brain Stem
- medulla

Answer 14

Autonomic functions
- lizard brain

Question 15

Brain Stem
- pons

Answer 15

Bridge of movement from left and right side of the brain
- lizard brain

Question 16

Cerebellum

Answer 16

Coordination and memory
- lizard brain

Question 17

Reticular Formation

Answer 17

Sleep and attention
- lizard brain

Question 18

Thalamus

Answer 18

Relays movement and senses
- mammalian Brain

Question 19

Hypothalamus

Answer 19

Hunger, thirst, emotion, temperature, circadian rhythm
- mammalian brain 

Question 20

Amygdala

Answer 20

Negative emotions
- mammalian brain

Question 21

Frontal Lobe
- motor cortex

Answer 21

1. Front of brain, reasoning, motor skills, higher level cognition, expressive language
2. Receives info to carry out movements

Question 22

Temporal Lobe
- hippocampus

Answer 22

1. Side by ears, auditory cortex, interprets sounds and language
2. Formation of memories

Question 23

Parietal Lobe
- somatosensory cortex

Answer 23

1. Middle, processes tactile sensory info
2. Processes body’s senses

Question 24

Occipital Lobe

Answer 24

Back, vision