Lymphatic System

Antibodies provided by serum from an immune donor or an animal donor do not challenge the B cells and thus provide ________.

passive immunity

How do plasma cells assist with humoral immunity?

plasma cells secrete highly-specific antibodies

what substance is not likely to trigger the immune response

self-antigens

What is the body's first line of defense against the invasion of disease-causing microorganisms?

skin and mucous membranes

What lymphoid organ stores platelets and acts as a blood reservoir?

spleen

Which lymphatic organ's major job is to destroy worn-out red blood cells and return some of the products to the liver:

spleen

what is not a nonspecific body defense

the antibody production

What are T lymphocytes and B lymphocytes self tolerant of

the body's own cells

What part of the adaptive defenses do the T cells constitute

the cell mediated arm

what is not a mechanism that aids lymph return to the heart

the pumping action of the heart

active immunity to tetanus, whooping cough, and polio can be artificially acquired when we receive...

vaccines

what is the origin of lymphatic vessels

veins of the blood vascular system

what is not a cell that behaves as an antigen presenting cell

virus

What does fever accomplish?

Fever inhibits bacteria reproduction and speeds the repair process.

antigen presentation is essential for the activation and clonal selection of

T cells

antigen presenting cells present fragments of cells so they can be recognized by

T cells

redness, heat, swelling, pain are the four most indicators of

acute inflammation

humoral immunity is provided by

antibodies

Lymph is largely composed of water that has escaped from

blood

what type of cell specializes in killing virus infected, cancer, or foreign graft cells directly

cytotoxic T cells

excess accumulation of fluid, which impairs the exchange of materials within the tissue, is called

edema

all lymph flows in a one way system toward the

heart

what type of T cell releases cytokines to indirectly rid the body of antigens

helper T cells

T cells or B cells that are capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocyte's surface are considered

immunocompetent

what mediates the adaptive defense system

lymphocytes

within a lymph node, what cell engulf and destroy bacteria, viruses, and other foreign substances in the lymph

macrophages

Due to a recent respiratory illness from a viral infection , Jennifer has now developed ________.

naturally acquired active immunity

the specific foreign substances that an individuals immune system has the ability to recognize and resist are determined by

individual genetic makeup

what inhibits viruses from entering and attacking healthy cells

interferon

Adaptive (specific) defense system

issues an attack specific to particular foreign substances

Bacteria and tumor cells are removed from lymph by ________.

lymph nodes

fluids that have escaped the cardiovascular system are picked up by the

lymphatic system