Glands, Such as the Thyroid, That Secrete Their Products Directly

question 75

Multiple Choice

Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.

• A) exocrine
• B) endocrine
• C) sebaceous
• D) ceruminous
• E) sudoriferous

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Definitions:

Nephron Tubules

The microscopic tubes within the kidney where blood is filtered, and urine is formed through processes of reabsorption and secretion.

Renal Plasma

The portion of the blood that flows through the kidneys and is involved in the filtration process to produce urine.

Tubular Reabsorption

Water and solutes move from the filtrate inside a kidney tubule into the peritubular capillaries.

Proximal Tubule

A segment of the nephron in the kidney where a major portion of the reabsorption of water, ions, and nutrients from the filtrate back into the bloodstream occurs.