T cells, which compromise about 80% of circulating lymphocytes, are the primary cells that provide:

A. antigens
B. plasma cells
C. cell-mediated immunity
D. antibodies


c
Rationale: T cells comprise approximately 80% of circulating lymphocytes. Cytotoxic T cells directly attack foreign cells or body cells infected by viruses. These lymphocytes are the primary cells that provide cell-mediated immunity.

Health Professions

You might also like to view...

Which of the following parts of a prescription indicates the number of tablets to be dispensed?

A. Signature B. Superscription C. Subscription D. Inscription E. None of these

Health Professions

Sleep apnea is a sleep disorder in which a person stops breathing for several seconds while sleeping, which can cause conditions such as ________, depression, and even memory loss.

A. hyperlipidemia B. COPD C. GERD D. cardiovascular disease E. insomnia

Health Professions

A ____ is the transfer of the management of patient care from one physician to another.

A. referral B. concurrent care C. professional service D. consultation

Health Professions

When interviewing a patient with a medical emergency, an AEMT is using the technique of "summarization" when she says:

A) "With one finger, can you point to where it hurts?" B) "So, the nausea and vomiting started two days ago." C) "Did you also have diarrhea with your nausea and vomiting?" D) "I know how you feel; I had the same thing last week."

Health Professions