nervous system pt 2

Question 1

synapse

Answer 1

The space between two neurons where neurotransmitters are released.

Question 2

synaptic transmission?

Answer 2

process of communication between neurons using chemicals called neurotransmitters.

Question 3

synaptic vessicles

Answer 3

Small sacs in neurons that store neurotransmitters.

Question 4

What happens first at the synapse?

Answer 4

nerve impulse arrives at the axon terminal of the neuron.

Question 5

What happens after the nerve impulse arrives at the axon terminal?

Answer 5

Vesicles release neurotransmitters into the synapse by exocytosis.

Question 6

What do neurotransmitters do at the synapse?

Answer 6

travel across the synapse and can either excite or inhibit the next neuron.

Question 7

What breaks down neurotransmitters after they work?

Answer 7

An enzyme breaks down the neurotransmitter and prepares it to be used again.

Question 8

What are excitatory neurotransmitters?

Answer 8

increase the chance of an action potential in the next neuron by allowing Na+ to enter.

Question 9

inhibitory neurotransmitters

Answer 9

make it harder for an action potential to happen by allowing K+ to exit.

Question 10

How can drugs affect neurotransmitters?

Answer 10

Drugs can mimic neurotransmitters or block them from being broken down.

Question 11

main role of the frontal lobe?

Answer 11

Controls thinking, planning, and speech.

Question 12

temporal lobe

Answer 12

hearing and memory

Question 13

parietal lobe

Answer 13

Senses like touch and taste, and helps with speech.

Question 14

occipital lobe’

Answer 14

vision

Question 15

corpus callosum?

Answer 15

bridge that connects the left and right brain hemispheres.

Question 16

cerebellum

Answer 16

Helps with balance and coordination.

Question 17

medulla oblongata responsible for?

Answer 17

Controls involuntary actions like heart rate and breathing.

Question 18

What is the function of the hypothalamus?

Answer 18

Regulates body temperature, hunger, and thirst.

Question 19

What does the pituitary gland do?

Answer 19

It’s known as the “master gland” and controls other glands.

Question 20

role of the thalamus

Answer 20

acts as a relay station, directing sensory information to the right part of the brain.

Question 21

How does the brain control the sides of the body?

Answer 21

The left brain controls the right side of the body, and the right brain controls the left side.