__________, which is secreted from an endocrine gland in the brain, has antioxidant properties, enhances the immune system, and may slow the aging process

Fill in the blank(s) with correct word


Melatonin

Anatomy & Physiology

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Which imaginary cardinal plane bisects the body into right and left halves?

A. sagittal B. frontal C. transverse D. none of the above

Anatomy & Physiology

Ultrasonography is most useful for diagnostic examination of

A) soft internal structures, such as fetuses. B) dense organs, such as bones. C) air-filled organs, such as lungs. D) microscopic structures.

Anatomy & Physiology

What connects the placenta to the fetus?

A) allantois B) chorion C) umbilical cord D) notochord

Anatomy & Physiology

The valves of the heart allow blood to flow in different directions through the heart based upon the pressure differences from the pulmonary and systemic circulations.

a. true b. false

Anatomy & Physiology