Ch. 12 A&P Lymphatic System
Excess accumulation of fluid, which impairs the exchange of materials within the tissues, is called _______.
edema
What does fever accomplish?
fever inhibits bacteria reproduction and speeds the repair process
Small proteins known as _______ are secreted by virus-infected cells to help defend cells that have not yet been infected.
interferons
What lymphoid organ stores platelets and acts as a blood reservoir?
spleen
Which lymphatic organ's major job is to destroy worn-out red blood cells and return some of the products to the liver?
spleen
Which one of the following is NOT a mechanism that aids lymph return to the heart?
the pumping action of the heart
Located overlying the heart
thymus gland
The lymphoid tissues that trap and remove bacteria that enter the throat are indicated by ________.
Label A
The tonsils are indicated by ________.
Label A
A lymph node is indicated by ______.
Label B
The thymus is indicated by _______.
Label B
Lymphatic collecting vessels are indicated by _______.
Label C
The lymphoid organ that destroys worn-out blood cells is indicated by _______.
Label C
The spleen is indicated by _______.
Label C
A lymph capillary is indicted by ________.
Label D
The Peyer's patches are indicated by _____.
Label D
Blood capillaries are indicated by _______.
Label E
The lymph tissue found within the walls of the small intestine are called ______.
Peyer's patches
The study of immunity is called ______.
immunology
The third line of defense involves the adaptive response mediated by _____.
lymphocytes
Harmful or disease-causing microorganisms from which nonspecific defenses protect the body are called ________.
pathogens
The body's first line of defense against the invasion of disease-causing microorganisms is ________.
skin and mucous membranes
Vaccines are NOT for _______.
snaked bites
Filters and cleans the blood of bacteria, viruses, and other debris
spleen
Located on the left side of the abdominal cavity
spleen
The process by which neutrophils are squeezed through the capillary walls during the inflammatory process is called ______.
diapedesis
AIDS cripples the immune system by interfering with the activity of cells called __________.
helper T cells
Which one of the following is NOT an autoimmune disease?
AIDS
The lymph duct is indicated by ______.
Label A
Located in the pharynx (throat)
tonsils
The role of the ________ is to trap and remove bacteria or other foreign pathogens entering the throat.
tonsils
Trap and remove bacteria and pathogens entering the throat
tonsils
An ______ is any substance capable of mobilizing our immune system and provoking an immune response.
Antigen
What structure carries lymph into a lymph node?
afferent lymphatic vessel
Redness, heat, swelling, and pain are the four most common indicators of _____.
acute inflammation
Where is the thymus located?
beneath sternum overlying heart
Active immunity to tetanus, whooping cough, and polio can be artificially acquired when we receive ______.
vaccines
Lymph is largely composed of water that has escaped from ______.
Blood
Located in the wall of the small intestines
Peyer's patches
The thymus is most active during _____.
adolescence