When an Antigen- Presenting Cell Interacts Successfully with a Helper

question 29

Multiple Choice

When an antigen- presenting cell interacts successfully with a helper T cell,the antigen- presenting cell secretes a signal molecule that assists in the activation of the helper T cell.This signal molecule is

• A)interferon.
• B)complement.
• C)perforin.
• D)interleukin- 1.

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Definitions:

Supplemental Oxygen

Additional oxygen provided to improve oxygenation in patients who are unable to maintain adequate levels on their own.

Postoperative Period

The phase of recovery following surgical procedures, requiring careful monitoring and care to ensure healing.

Pulse Oximetry

A non-invasive method to measure the oxygen saturation level of the blood, often using a sensor placed on a fingertip.

Cyanotic

Refers to bluish discoloration of the skin and mucous membranes due to insufficient oxygen in the blood.