KC- Lymphatic System Flashcards
What is the name of the Fluid that is transported in the Lymphatic vessels?
Lymph
Name the Characteristics of Lymph
fluid that resembles plasma
fluid that is transported through/towards heart
What is the direction of Fluid movement between arterioles, venues, blood capillaries, lymphatic vessels and tissues?
fluid moves from arterioles to blood capillaries and then into the tissues. the blood capillaries deliver more fluid to the tissues than they can carry away via the venues. the excess fluid in tissues returns to the bloodstream through lymphatic vessels.
Where does lymph enter the circulation such as blood vessels?
Subclavian veins
What are the four components that make up the Lymphatic system?
Lymph
Lymphatic vessels
Lymphoid tissues and organs
lymphoid cells
What are lymphatic vessels?
begin in the peripheral tissues and connect to veins
Lymphoid tissues and organ?
scattered throughout the body
Lymphoid cells?
Lymphocytes and some phagocytes and other cells
What does the term lymphoid cells describe?
describes cells that are found in lymphoid tissues and cells that support these tissues lymphoid ells includes lymphocytes and phagocytes
What are the 3 types of lymphocytes?
Nk- natural killer cells
T cells
B cells
What are the 2 types of phagocytes?
- macrophages
- neutrophils
What term describes a substance that is capable of inducing an immune response?
antigen
What terms describes the body reaction to infectious agents and other abnormal substances?
Immune response
What term describes a disease-causing organism?
Pathogen
What term describes the body ability to resist infection and disease?
Immunity
what are the names of the two types of immunity?
Innate which is non-specific
adaptive which is specific
What is innate immunity
firstline of defence
born with it
responds to all foreign antigens
involved physical barriers
what are the 7 components that make up innate response?
physical barriers fever inflammation complement phagocytes immune surveillance interferons
Which components of innate immunity keeps hazardous organisms and materials outside the body?
Physical barriers such as skin and mucous membrane
Which are the 2 phagocytes which play a role in innate immunity?
Neutrophils
Macrophages
Immune surveillance continuously involves monitoring of peripheral tissues by which type of cells?
NK cells (natural killers)
NK cells release…….
Perforin
what is perofin?
Perofin creates pores in the plasma membrane of abnormal cells, preventing the abnormal cell from maintaining homeostasis
What is the name of a small protein that is released by activated lymphocytes and macrophages and by our tissue cells that are infected with viruses?
Interferons
What is the name of the proteins that is found in the plasma part blood and this helps to kill pathogens and enhance phagocytosis and inflammation?
complement
Adaptive Immunity develops after birth as a results of……
Exposure to specific antigens
What does adaptive immunity do?
Adaptive immunity protects the body against further attacks by the same type of disease causing pathogens
4 Characteristics of Adaptive immunity
- Specificity
- Versatility
- Tolerance
- Memory
Adaptive immunity involves…..
T and B cells
name the two types of adaptive immunity?
cell mediated immunity
antibody mediated immunity
Cell mediated does?
cell mediated defends the body against abnormal cells and cells with internal pathogen viruses
Antibody- mediated does?
Antibody mediated defends the body against antigens and pathogens in body fluid
What do B cells do for Adaptive Immunity?
B cells play an important role in adaptive immunity. B cells differentiate into plasma cells produce and secrete antibodies
What are the four types of T cells?
Cytotoxic T cells
Helper T cells
Regulatory T cells
Memory T cells
Memory?
responds to a previously encountered antigen
Cytotoxic?
Attack foreign cells or body cells infected by viruses
Helper
Stimulate the activation and function of T and B cells
Regulatory?
Moderate activity of T and B cells
What is an Antibody?
A protein produced by plasma cells binds to a specific antigen and promotes its destruction to removal
Characteristics Primary
Moderate lib production
slow to start
Secondary characteristics?
high lib production
starts immediately
