Steroid Hormones

question 55

Multiple Choice

Steroid hormones

• A) bind to membrane receptors.
• B) diffuse easily through the plasma membrane.
• C) act by activating cAMP.
• D) are inactivated by phosphodiesterase.
• E) are water soluble.

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Definitions:

Capillaries

Microscopic blood vessels that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.

External Jugular Vein

A vein located on each side of the neck that drains blood from the face, neck, and scalp back to the heart.

Superior Vena Cava

A large vein that carries deoxygenated blood from the upper half of the body into the heart's right atrium.

Venules

Small blood vessels that allow deoxygenated blood to return from the capillary beds to the larger blood veins.