Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
CD 8 T cells or cytotoxic cells
|
One of two major types of mature T-cells that exit the thymus. Plasma membranes contain the protein CD8
|
|
|
CD4 T cells or Helper T cells
|
One of two major types of mature T-cells that exit the thymus. Plasma membranes contain the protein CD4
|
|
|
Antibodies (Ab)
|
A protein produced by plasma cells in response to a specific antigen. The antibody combines with that antigen to neutralize, inhibit or destroy it. Immunoglobulin G
|
|
|
Antigens (Ag)
|
Substances recognized as foreign
Provoke immune responses |
|
|
Apoptosis
|
Programmed cell death
|
|
|
Chemotaxis
|
A chemically stimulated movement of phagocytes to a site of damage.
First phase in phagocytosis |
|
|
Complement System
|
Group of normally inactive proteins in blood plasma and on plasma membranes. When activated, they enhance certain immune reactions.
|
|
|
Cytokines
|
Small protein hormones that stimulate or inhibit normal cell functions like cell growth and differentiation.
|
|
|
Cytolysis
|
The rupture of living cells. ECF flows in and cell blows up.
|
|
|
Dendritic cells
|
Assist in the maturation of T cells that have migrated from bone marrow to the cortex of the thalmus. Derived from monocytes.
|
|
|
Granzymes
|
Protein-digesting enzyme released by granules of NK cells that induce the target cell to self-destruct. Kills infected cells but not microbes within.
|
|
|
Histamine
|
Released in response to injury by mast cells in CT, and basophils and platelets in blood. Neutrophils, macrophages also release them.
Cause vasodilation; increased permeability of blood vessels. |
|
|
Immunocompetence
|
The ability to carry out immune responses
|
|
|
Immunogenicity
|
The ability to provoke an immune response by stimlating the production of specific antibodies, the proliferation of T cells or both. Along with reactivity, one of two important characteristics of antigens.
|
|
|
Mast cells
|
Release histamine that dilates small blood vessels during inflammation.
Found in areolar CT |
|
|
Lymph
|
Interstitial fluid that has passed through lymphatic vessels. Location is key.
|
|
|
Primary functions of lymphatic system
|
1. Drain excess interstitial fluid
2. Transport dietary lipids 3. Carry out immune responses |
|
|
Lymphatic system components
|
1. Lymph tissue
2. Lymphatic vessels 3. Lymphatic nodules 4. Spleen, thymus, tonsils |
|
|
Lacteals
|
Specialized lymphatic capillaries in small intestine
|
|
|
Where to find lymphatic vessels
|
1. Skin: subcutaneous tissue, following same route as veins
2. Lymphatic vessels of viscera generally follow arteries. |
|
|
Five principle trunks
|
1. Lumbar: drains lymph from lower limbs, the wall and viscera of pelvis, kidneys, adrenal glands, abdominal wall.
2. Intestinal: from stomach, intestines, pancreas, spleen and part of liver. 3. Bronchomediastinal: thoracic wall, lung, heart 4. Subclavian: upper limbs 5. Jugular: head and neck |
