Chapter 16 Brain Chemistry/Psychoactive Drugs

Question 1

A small peptide hormone relased from the posterior pituitary by magnocellular neurosecretory cells; stimulates uterine contractions and milk let-down from the mammary glands

Answer 1

Oxytocin

Question 2

A small peptide hormone released from the posterior pituitary by magnocellular neurosecretory cells; promotes water retention and decreased urine production by the kidney; also called antidiuretic hormone.

Answer 2

Vasopressin

Question 3

Cortisol

Answer 3

A steroid hormone released by the adrenal cortex; mobilizes energy reserves, supresses the immune system, and has direct actions on some CNS neurons.

Question 4

Hallucinogens

Answer 4

Hoffman and LSD-dreamlike state
it is an agonist at serotenergic receptor in raphe nuclei
activation=blocks raphe nuclei