Excess blood plasma builds up in region where there are no lymph vessels
Why would removal of lymph vessels from the right axillary region cause edema in the right arm?
Arteries, blood capillaries, lymhatic vessels, subclavian vein
Which of the following represents a logical sequence of structures that contribute to the return of fluid in the blood via the lymphatic system
The milking action of skeletal muscle contraction and pressure changes in the thorax that result from breathing
Which of the following contribute(s) to the flow of lymph through lymphatic vessels
bacteria, virus, and mismatched red blood cells
which of the following would the body perceive as an antigen
at the locations where lymphatic collecting vessels converge
The highest density of lymph nodes can be found
An Advantage to having reticular connective tissue in lymph nodes would be that
The loose organization of reticular connective tissue provides niches for macrophages and lymphocytes, lymph filters through the nodes and is exposed to lymphocytes and macrophages, and lymphocytes cycle to various areas of the body and back to lymph nodes
fewer efferent lymphatic vessels than afferent lymphatic vessels
Lymph tends to stall inside lymph nodes due to
Blood filtering; immunity
Red pulp of the spleen is most concerned with ___ and ___, while white pulp is most concerned with ___.
The immune system
The diverse set of molecules and immune cells that are found in lymphoid tissue and fluids throughout the body
Skin and mucous membranes
Which of the following act as the first line of defense against foreign pathogens
Natural cell killers
The two intrinsic defense systems have many components. Which of the following cell types is not a contributor to specific immunity?
The respiratory burst
In order for some phagocytes to destroy certain pathogens they must have ingested (like tuberculosis), ____must be deployed
An increase in white blood cell number at sites of injury, which is characteristic of inflammation, is called ____
Red, hot, swollen and painful
Your hand has a scratch. What signals would indicate that the injury is inflammed?
bacterial cell membrane lysis
The basic mechanism employed by complement to fight bacterial infections is
A patient has contracted the hepatitis c virus. Which of the following drug therapies might be effective
The process of attaching complement proteins to the bacterial cell wall to enhance phagoctosis is called
An increase in body temperatures set point
What would be the body's response if the hypothalamus detected pyrogens?
The presence of____ proteins makes it possible for our immune system to differentiate between our cells and those that are foreign
The adaptive immune system involves three major cell types: antigen-presenting cells, T cells, which constitute ____ immunity, and B cells, which govern____ immunity
Certain T cells are required to activate B cells into antibody-producing cells
Why would a patient with no thymus lack an effective humoral immune response?
bone marrow; thymus
Lymphocytes are educated within primary lymphoid organs. B cells are educated in the ___ white T cells are educated in the ___
During clonal selection of B cells, those B cells with complementary membrane receptors to the invading antigen will differentiate into
artificially acquired active
A patient has been immunized against chicken pox. What type of immunity is this?
Antibodies immobilize antigens and mark them for destruction
Which of the following best describes an antibody's mode of action
Cytotoxic T cells induce cells lysis with perforin, a protein similar to complenents MAC
How is the cytoxic T cell mechanism of action similar to that of complement?
Antigen-presenting cells link anitgenic peptides to MHC proteins in which T cells will attach
How are T cells "introduced" to antigens?
When antibodies develop against a a person's own cells, this is an example of a(n)
Major function of the lymphatic system
return of tissue fluid to the cardiovascular system is the______
This structure, attached to the cecum, is in an ideal location to destroy bacteria before it migrates into the large intestine
It maintains blood volume and, hence, pressure
Describe the lymphatic system's role in relation to the cardiovascular system?
It drains the lymph from the entire left side of the body and the right abdomen and leg.
A one-way system of vessels beginning with blind-ended lymphatic capillaries
Describe the arrangement of lymphatic vessels?
The lymphoid organs located in the throat that defend against invading bacteria coming in through the mouth and nose
the first lymph node that receives lymph drainage from a body area suspected of cancer.
Lymphatic collecting vessels
What part of the lymphatic system is most closely associated with capillary beds
Afferent vessel, subcapsular sinus, medulla, efferent vessel
the correct order of lymph flow through the lymph node
appendix follicles, the tonsils, and peyer's patches
collections of lymphoid tissue (MALT) that guard mucosal surfaces include what?
lymphoid tissue found in the mucosa of the digestive, respiratory, and genitourinary tracts
Lymph collecting or pooling from the lower extremities would first pool where before moving on up?