LymphImmune System, Christina Gatica Period 1. (Major functions of…
LymphImmune System, Christina Gatica Period 1.
Major functions of Lymphatic System
The lymphatic system is the support system to the cardiovascular and immune system
helps prevent low blood pressure
keeps normal blood volume
serves as immune guarding and watching
brings fluid back to the heart
helps large molecules to enter the blood
The lymph nodes and lymphoid tissues in the thymus produce lymphocytes which are white blood cells that are involved in immunity
Lymph ducts empty out into either the thoracic duct or the right lymphatic duct
Major functions of Immune System
a network of cells, tissues and organ that work together to protect the body for any foreign invader
An important part are the white blood cells called leukocytes which seek out to destroy anything unwanted in its way.
Its 100% main function is to protect against any disease
Innate/ natural immune defenses
Innate immune defense is the stuff that you were born with
there is both external and internal.
consists of the skin, and mucous membranes, and i part of the first line of defense
consists of phagocytes, attack cells, and antimicrobial proteins
release inflammatory response
Adaptive/ acquired immune defenses
Adaptive immune defenses can save from certain death by infection
it can also remember the antigens from memory cells which can attack any infection that the body has encountered before.
A vaccine can also help with adaptive immune defense
in acquired immune defense the body sends out to attack the specific antigen
The body now has a primary response so the second response is faster and the body has the antigens to react to the disease.
humoral vs. cellular response
releases antibodies that are made by white blood cells that care for the body's various fluids
the b lymphocyte is originated in the bone marrow and at once when it is activated it passes around itself quite instantly
T-cells activate macrophages which then causes inflammation, and gets over T-cells into activation mode
antigens and antibodies
the antibodies physically block the binding sites on viruses or bacterial toxins
they bind to more than on antigen at the same time and this makes it easier for macrophages to eat.
Disorders of the immune system
Can be caused by smoking, drinking, and poor nutrition
HIV (AIDS) kill white blood cells that help with the immune system so this makes the system weak to fight the intruder in the body
autoimmune diseases that is when the body attacks its own tissues causing damage and a weak immune response
the diseases decrease the body's ability to fight invaders and have the right responses to kill the disease.