Action potential/neurotransmitteres

Question 1

Acetylcholine

Answer 1

• Alzheimers disease
• Excitatory
• Muscle contraction
• Wakefulness, attentiveness
• Anger aggression, sexuality thirst

Question 2

Dopamine

Answer 2

• Controlling movement and posture
• Modulates mood
• Parkinssons

Question 3

GABA

Answer 3

• Inhibitory
• Vision, anxiety, motor control
• Epilepsy and Huntington’s

Question 4

Glutamate

Answer 4

• Major, excite almost all neurons
• Learning and memory
• Alzheimer’s

Question 5

Serotonin

Answer 5

• body temp, sleep, mood, appetite, pain

- depression, suicide, agressiveness

Question 6

Norepinephrine

Answer 6

• emotions
• sleeping
• dreaming
• learning
• manic depression

Question 7

Excitatory neurotransmitters

Answer 7

increase neural firing, grease wheels of communication

Question 8

Inhibitory neurotransmitters

Answer 8

decrease neural firing, apply the breaks

Question 9

What are the three types of neurons and what do they do

Answer 9

-Sensory neurons: afferent, approach brain
-Motor neurons: efferent, exit brain, TO muscles and glands
Interneurons: connects neurons to other neurons

Question 10

What “tasks” does the dendrite, axon and myelin sheath and terminal buttons have?

Answer 10

Dendrite: receive input from other cells
Axon: transmit info to other neurons
Myelin sheath: is wrapped around axon, makes it more efficient
Terminal buttons: send signals from neuron

Question 11

Neuroplasticity means

Answer 11

That our brain reorganizes structurally and functionally in response to genes, environment, learning and injury

Question 12

A agonist drug will

Answer 12

Facilitate the effects of a neurotransmitter

Question 13

EEG and fMRI and MEG

Answer 13

non-invasive brain techniques to studying brain functions

Question 14

Removal of the neurotransmitters from the synaptic cleft occurs by

Answer 14

• Reuptake of the neurotransmitters into the terminal button
• Enzymes inactivating the neurotransmitter
• Removal of the neurotransmitter

Question 15

What ion moves into the cell in order to depolarize the cell?

Answer 15

Na+ / Sodium

Question 16

Resting potential

Answer 16

More negative inside than outside
3 Na+ out
2 K+ in
-70

Question 17

Depolarization

Answer 17

sodium channels open, charge inside is LESS negative. More likely to fire

Question 18

Neurotransmitters that don’t bind

Answer 18

broken down or drift away from receptor site or reabsorbed by pre-synaptic neuron

Question 19

MRI, DTI

Answer 19

Non-Invasive, brain structure

Question 20

Autopsies & brain dissection

Neural Staining-

Answer 20

Non-Invasive, brain structure