__________, 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