Identify the highlighted structure.


zona pellucida

Anatomy & Physiology

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Which of the following is NOT a major function of the blood?

a) Transportation of nutrients b) Regulation of blood pH c) Protection against infectious disease d) Transportation of heat e) Production of oxygen

Anatomy & Physiology

When the __________ contracts it flattens, the thorax expands, and air is drawn into the lungs.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

A process that requires energy to move a substance against its concentration gradient is called:

A) passive transport. B) facilitated transport. C) osmosis. D) active transport.

Anatomy & Physiology

Which of these is not part of the upper respiratory system?

A) larynx B) pharynx C) nasal cavity D) nose E) sinuses

Anatomy & Physiology