A&P Chapter 7 Flashcards
A passive circulatory system that transports a plasma-like liquid called lymph, a thin fluid that bathes the tissues of the body
Lymphatic System
A naturally occuring hormone that also may be given as a cardiac drug and has alpha and beta effects; also called epinephrine
Adrenaline
A disease that is caused by infection or one that is capable of being transmitted to another person with or without direct contact
Infectious Disease
One of two great lymph vessels; it empties into the superior vena cava
Thoracic Duct
Thin-walled vessels through which lymph circulates in the body, they travel close to the major arteries and veins
Lymphatic Vessels
Tiny tubes formed from lymphatic capillaries that merge to form larger vessels
Lymphatic Pathways
An immune response that is predictable each time the body is exposed to a particular challenge. One that protects the body from pathogens involving mechanical barriers, chemical barriers, natural killer cells, inflammation, phagocytosis, fever, or species resistance
Innate (Nonspecific) Defense
An abnormal immune response in which the body attacks its own tissues
Autoimmunity
One of three sets of lymphatic organs that comprise the tonsils. They are located in the back of the throat, on each side of the posterior opening of the oral cavity, and help protect the body from bacteria introduced into the mouth and throat
Palatine Tonsils
A substance that normally does not stimulate an immune response but can be combined with an antigen and at a later point initiate an antibody response; found in certain drugs, dust particles, animal dander, and various chemicals
Hapten
The form into which T cells differentiate when activated by an antigen; they remain within the body, ready to respond to a second challenge
Memory T Cells
Any swelling of the lymph nodes, with or without pain
Lymphadenopathy
Inflammation of a lymph node caused by infection
Lymphadenitis
Round or bean-shaped structures interspersed along the course of the lymph vessels, which filter the lymph and serve as a source of lymphocytes
Lymph Nodes
An extreme systemic form of an allergic reaction involving two or more body systems
Anaphylaxis
A substance that includes antigens that stimulate an immune response against a particular pathogen
Vaccine
A large collection of lymph nodes located in the groin
Inguinal Nodes
The smaller of the two collecting ducts; it receives lymph from the right side of the head and neck, right upper limb, and right thorax
Right Lymphatic Duct
Vessels of the lymphatic system that carry fluid away from the tissues and toward one of the great lymph vessels
Lymphatic Capillaries
Antigens; chemicals that stimulate B cells to produce antibodies or allergies
Allergens
Spaces inside lymph nodes that comprise complex channels through which lymph moves
Lymph Sinuses
Tissue that is denser than diffuse lymphatic tissue, found in the loose connective tissue of the digestive, respiratory, and urinary systems
Lymph Nodules
Organisms of microscopic size
Microorganisms
One of three sets of lymphatic organs that comprise the tonsils, they are located near the internal opening of the nasal cavity and help protect the body from bacteria introduced into the mouth and nose. Also called adenoids
Pharyngeal Tonsils