The Vessel Wall
Name the 3 tunics
The tunica interna, media, and externa
Name the 3 functions of the lymphatic system.
Fluid recovery, immunity, lipid absorption
True or False: Flow is volume of blood per time supplied to an organ, tissue, vessel.
True
(Nonspecific/specific) resistance results from exposure to a very specific antigen.
Specific resistance
How do APCs present antigens?
What type of epithelium is the endothelium?
Simple squamous epithelium
True or False: The lymphatic tissues include red bone marrow, thymus, spleen, tonsils, and lymphatic nodes.
False, those are lymphatic organs
Arterial __ is important to prevent high blood pressure.
__ __: binding of antigen-antibody to RBC surface?
Immune Clearance
When activated, Helper T cells secrete __.
interleukins
In which tunic are you most likely to find muscle, elastic tissue, or collagen?
Tunica media
In which specific organs do lymphocytes develop?
Primary lymphatic organs: Red bone marrow and Thymus
Blood pressure is determined by?
Cardiac output, blood volume, peripheral resistance
Getting rid of an infected cell through immune surveillance involves which cells?
NK cells and macrophages
True or False: Humoral immunity attacks cells with intracellular pathogens.
Which tunic helps anchor the vessel?
Tunica externa
What are the 2 functions of lymphatic nodes?
Clean lymph and activation site for T and B cells
Peripheral resistance is determined by?
Blood viscosity, vessel length, vessel radius
How do T cells become immunocompetent?
They can recognize antigens presented by APCs
What are the 3 stages of Cellular and Humoral Immunity?
Recognition, attack, memory
What are 2 differences between arteries and veins?
- Arteries go away from the heart while veins go toward the heart.
- Arteries are stronger than veins
What are the 3 functions of the spleen?
"Erythrocyte graveyard", monitor and filter blood, blood volume stabilizer
What are the 3 ways of controlling vasomotion?
Local control, neural control, and hormonal control
How do T cells become self-tolerant?
They do not respond to self-antigen
What are the 4 mechanisms antibodies use to neutralize antigens?
Neutralization, complement fixation, agglutination, precipitation