brain

Question 1

sensory neurons (afferent)

Answer 1

signals to brain, approaches

Question 2

motor neurons (efferent)

Answer 2

signals away from brain, exits

Question 3

threshold

Answer 3

level of excitatory neurotransmitters that a neuron must absorb prior to firing

Question 4

inhibitory

Answer 4

blocks and will not fire

Question 5

excitatory

Answer 5

opens (fires), allows message to go through

Question 6

thalamus

Answer 6

recieves info from all senses except smell

Question 7

cerebellum (little brain)

Answer 7

coordination, balance + posture, motion from ear and muscles

Question 8

medulla

Answer 8

controls vital reflexes (breathing, heart rate, etc.),

Question 9

reticular formation

Answer 9

alerts brain of incoming signals, connects to thalamus

Question 10

pons

Answer 10

facial expressions, connects spinal cord and brain, connects to cerebellum

Question 11

EEG (electroencephalogram)

Answer 11

records brain waves, sleep

Question 12

CAT/CT (computed tomography)

Answer 12

scans structure and measures harmful signals

Question 13

PET (positron emission test)

Answer 13

scans for function and disorders

Question 14

MRI (magnetic resonance imaging)

Answer 14

scans structure, most detailed

Question 15

fMRI

Answer 15

combines PET and MRI

Question 16

hypothalamus

Answer 16

controls endocrine system, regulates hunger, thirst, sex, temp

Question 17

hippocampus

Answer 17

memory, learning, smell

Question 18

amygdala

Answer 18

emotions (fear and anger), smell

Question 19

broca’s area

Answer 19

frontal lobe, producing speech (if damaged, can’t form words - aphasia)

Question 20

wernicke’s area

Answer 20

temporal lobe, hearing speech (if damaged, can’t understand words - aphasia)

Question 21

right hemis.

Answer 21

face recognition, big picture, music, art

Question 22

left hemis.

Answer 22

names, details, math skills, reasoning