are mainly found on the surfaces of B cells as antigen receptors.

• IgA

• IgD

• IgE

• IgM

is the ability of the antigen to respond specifically with the antibodies or cells it provokes.

• Memory

• Reactivity

• Specificity

• Immunogenicity

is the primary organ where T cells become immunocompetent.

• Spleen

• Thymus

• Lymph nodes

• Red bone marrow

are the site of proliferation of B cells and T cells.

• Spleen

• Thymus

• Lymph nodes

• Red bone marrow

indicates ventricular repolarization and occurs just as the ventricles are starting to relax.

• Pwave

• Twave

• S-Tsegment

• QRS complex

initiates the intrinsic conduction system of the heart.

• AVnode

• SAnode

• Purkinje fibers

• Bundle of His

Damage to which area of the brain is most likely to result in language impairment?

• Frontal lobe.

• Parietal lobe.

• Occipital lobe.

• Temporal lobe.

Glomerulus is located in the

• renal cortex.

• renal pelvis.

• renal capsule.

• renal medulla.

Hormone that regulates blood glucose levels by promoting the uptake of glucose into cells are

• insulin.

• cortisol.

• glucagon.

• thyroxine.

Hormones produced by the adrenal cortex that are involved in the regulation of salt and water balance in the body is

• cortisol.

• aldosterone.

• epinephrine.

• norepinephrine.