The pineal gland secretes: A) melatonin and serotonin. B) ...

[vicotolentino]

The pineal gland secretes:
 
  A) melatonin and serotonin.
  B) serotonin and cortisol.
  C) oxytocin and melatonin.
  D) epinephrine and norepinephrine.

Question 2

A condition in which a blood clot obstructs a blood vessel is known as:
 
  A) thrombosis.
  B) embolism.
  C) cyanosis.
  D) constriction.

[tdewitt]

Answer to Question 1

A
Explanation: A) Correct.
B) Serotonin is secreted by the pineal gland, but cortisol comes from the adrenal cortex.
C) Melatonin is secreted by the pineal gland, but oxytocin comes from the posterior pituitary.
D) Both epinephrine and norepinephrine come from the adrenal medulla.

Answer to Question 2

B
Explanation: A) Thrombosis is a condition of a blood clot.
B) Correct.
C) Cyanosis is a bluish tinge to the skin due to deficient oxygen.
D) Constriction is narrowing of a vessel.