Melatonin can pass through plasma membranes since it is derived from the nonpolar amino acid tryptophan.

Answer the following statement true (T) or false (F)


True

Anatomy & Physiology

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When the diaphragm contracts, _______.

A) it lifts the rib cage B) it rises in the thoracic cavity C) it flattens out D) it flattens out and it rises in the thoracic cavity

Anatomy & Physiology

When a neuron is at rest, there is a charge separation (voltage) across the plasma membrane called ________

A) the resting membrane potential B) repolarization C) depolarization D) the battery

Anatomy & Physiology

Decreased pressure in the pleural cavity tends to hold the visceral and parietal pleural membranes together.

Indicate whether the statement is true or false.

Anatomy & Physiology

When in the lungs, blood absorbs what?

A. O B. CO C. CO2 D. O2

Anatomy & Physiology