Antigens Interact with Antibodies at

question 54

Multiple Choice

Antigens interact with antibodies at

• A) the outer end of each arm of the Y.
• B) the junction of heavy and light chains.
• C) different regions depending on the class of antibody.
• D) the bottom stem of the heavy chain of the Y.
• E) the disulfide bridges of the antibody molecule.

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Definitions:

Posterior Fontanel

The junction where the two parietal bones and the occipital bone meet on the skull of a newborn, typically closing by 2 months of age.

Anterior Fontanel

The soft spot on the top of a baby's head where the skull bones have yet to fuse.

Sagittal Suture

The fibrous connective tissue joint between the two parietal bones of the skull, running anteroposteriorly from the fontanelle to the occiput.

Anterior Cruciate Ligament

A key ligament located in the knee joint that connects the thigh bone (femur) to the shin bone (tibia), helping to stabilize the knee.