MCAT Review Day 1

Question 1

Hindbrain

Answer 1

Basic functions (balance, motor skills, vitals, arousal, alertness)

Question 2

Hypothalamus

Answer 2

works with endocrine system(links it to nervous system), homeostasis

Question 3

Midbrain

Answer 3

Audio and visua

Question 4

Epigenome

Answer 4

DNA Modification that is inheritable. different transmission of DNA to offspring (explains different kids)

Question 5

Hypophyseal portal system

Answer 5

connects hypothalamus to pituitary gland

Question 6

hepatic portal vein

Answer 6

blood to the liver

Question 7

concordance rate

Answer 7

rate at which twins share same trait

Question 8

Pleitropy

Answer 8

one gene influences many traits

Question 9

Dominant Hemisphere

Answer 9

Math, language, logic, complex mvmnt

Question 10

Non-Dominant hemisphere

Answer 10

spatial, facial, music, creativity

Question 11

GABA

Answer 11

stabilizes neural activity

Question 12

Penetrance

Answer 12

Likelihood an allele will be expressed

Question 13

Heritability

Answer 13

How expressed a gene is in a population

Question 14

Axon Hilock

Answer 14

Once passed, action potential is generated

Question 15

Cerebellum

Answer 15

posture and movements

Question 16

Parietal Lobe

Answer 16

sensations

Question 17

prefrontal cortex

Answer 17

decision making (inhibition)

Question 18

Neural Tube

Answer 18

Brain develops from this

Question 19

Blood comes from

Answer 19

mesoderm

Question 20

Neural Crest

Answer 20

Forms many structures (multipotent)