California Certifying Board for Medical Assistants (CCBMA) Practice Test 2025 – Comprehensive All-in-One Guide to Exam Success!

Question: 1 / 400

What is the term for the smallest blood vessel?

Patella

Goiter

Nephromegaly

Capillary

The term for the smallest blood vessel is "capillary." Capillaries are tiny, thin-walled vessels that connect arterioles and venules, facilitating the exchange of oxygen, carbon dioxide, nutrients, and waste products between the blood and surrounding tissues. Their microscopic size allows them to effectively penetrate tissues and organs, making them crucial for maintaining proper cellular function and overall metabolic processes.

In contrast, the other terms listed do not relate to blood vessels. The patella refers to the kneecap, which is a bone, while goiter is an enlarged thyroid gland, generally associated with thyroid dysfunction. Nephromegaly is a term that describes the enlargement of the kidneys. Understanding these distinctions is important for recognizing anatomical and physiological terminology related to the human body.

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