The _________ produces the hormone melatonin.

A) pituitary gland
B) pineal gland
C) thyroid gland
D) pancreatic gland
E) hypothalamus


Answer: B) pineal gland

Anatomy & Physiology

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When a set of electrodes connected to a lightbulb is placed in a solution of dextrose and a current is applied, the lightbulb does not light up. When the same unit is placed in HCl, it does. Why?

What will be an ideal response?

Anatomy & Physiology

If the tidal volume is 500 ml and the anatomic dead space volume is 150 ml, only 350 ml of air enters the alveoli during inspiration

Indicate whether the statement is true or false

Anatomy & Physiology

The yolk sac

A. is the fetal half of the placenta. B. becomes the umbilical cord vessels. C. provides nutrition until the placenta is formed. D. is the first site of blood cell formation.

Anatomy & Physiology

The gender of the individual is determined at

A. gastrulation. B. fertilization. C. the third month. D. birth.

Anatomy & Physiology