Neurotransmitters Flashcards Preview

MCAT Pysch/Soc > Neurotransmitters > Flashcards

Flashcards in Neurotransmitters Deck (18)
1

catecholamine
Plays a role in the experience of emotions
Controls alertness and wakefulness
Primary neurotransmitter in the sympathetic nervous system
Released by the adrenal medulla

Epinephrine (acts as a hormone) and norepinephrine (acts as a neurotransmitter)

2

Low levels of norepinephrine causes

Depression

3

High levels of norepinephrine causes

Anxiety and mania

4

Epinephrine is secreted from

Adrenal medulla

5

Catecholamine

Plays a role in movement and posture

Dopamine

6

Imbalances of dopamine lead to what disorder?

Schizophrenia

7

High levels of dopamine are found where?

Basal ganglia

Helps smooth movements and maintain postural stability

8

Loss of dopaminergic neurons in the basal ganglia lead to what disease ?

Parkinson's disease

9

Plays a role in regulating mood, eating, sleeping, and dreaming

plays a role in depression and mania

Serotonin

10

Too much serotonin produce what kind of mind states

Manic states

11

Too little serotonin lead to

Depression

12

Produces inhibitory post synaptic potentials - causing hyper polarization

Stabilizes neural activity in the brain

Acts as a "brain stabilizer"

GABA

13

Naturals painkillers produced by the brain

Endorphins and enkephalins

14

Hormones are released from what system?

Endocrine

15

How do hormones travel through the system ?

Travel to their target destination through the blood stream

16

"Master" gland located on the base of the brain

Pituitary gland

17

Anterior pituitary

Releases hormones that regulate activities of endocrine glands

Is controlled by the hypothalamus

18

Found in the CNS and PNS

Transmits nerve impulses to the muscles

In PNS: Used by the parasympathetic and small use by the sympathetic nervous system

Linked to attention and arousal

Acetylcholine