Tanae Was Drowsy, but When She Heard Her Child Call

question 82

Multiple Choice

Tanae was drowsy, but when she heard her child call out, she felt immediately wide awake and alert. A part of her brain that plays a crucial role in her arousal level and attention is the _____

• A)medulla.
• B)pons.
• C)cerebellum.
• D)reticular formation.

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Definitions:

CD8

A glycoprotein found on the surface of some T-cell subsets, functioning as a co-receptor in the T-cell receptor (TCR) complex that recognizes antigens presented by MHC class I molecules.

T Cell Receptors

Proteins found on the surface of T cells, a type of lymphocyte, that are responsible for recognizing fragments of antigens as peptides bound to major histocompatibility complex (MHC) molecules.

Complement Proteins

A group of proteins in the blood and body fluids that play a crucial role in the immune system by enhancing the ability of antibodies and phagocytic cells to clear pathogens.

Antigen

A substance that, when introduced into the body, stimulates an immune response, specifically the production of antibodies.