Chapter 14 Test: Lymphatic System and Immunity

Front

What is the Hilum in the context of the lymphatic system?

Back

The Hilum is the area on a lymph node where blood vessels and nerves enter and exit.

Front

Define Antigen.

Back

A molecule that can evoke an immune response.

Front

What is a mechanical barrier in the innate immune system?

Back

A physical barrier that prevents pathogens from entering the body, such as intact skin.

Front

Which antibody is most abundant in exocrine gland secretions like saliva and tears?

Back

IgA.

Front

What is an Antibody?

Back

A protein produced by plasma cells to combat specific antigens.

Front

What role does Lysozyme play in the immune system?

Back

Lysozyme is an enzyme found in tears that helps to break down bacterial cell walls.

Front

What is Phagocytosis?

Back

The process by which certain cells engulf and digest pathogens or debris.

Front

What is the function of Stomach Acid in the immune system?

Back

Stomach acid acts as a chemical barrier that destroys pathogens ingested with food.

Front

What is Inflammation?

Back

A biological response to harmful stimuli, characterized by redness, heat, swelling, and pain.

Front

What is the role of Fever in the immune response?

Back

Fever is a rise in body temperature that helps to inhibit pathogen growth and enhance immune function.