The region of a lymph node through which blood vessels pass is called the
A) hilum
________ transport fat from the small intestine to the circulatory system.
D) Lacteals
T-lymphocytes are responsible for
C) cell-mediated immunity
If lymphatic tissue is removed from an axillary region, the arm on that side is likely to
B) become edematous
A primary immune response is ______, and a secondary immune response is ______.
D) responsible for producing antibodies within five to ten days after exposure to antigens; responsible for producing antibodies within a day or two of a subsequent exposure to the same antigen
Innate defenses are
B) fast and nonspecific.
The spleen
B) All of these are correct.
Lymph nodes occur in groups throughout the body except in the
C) central nervous system.
The spleen is much like a lymph node except that the spleen
B) filters blood.
The most active phagocytic cells found in circulating blood are
D) neutrophils and monocytes.
Newborns can acquire __________ immunity through breast milk.
D) passive
The lymph nodes of the abdominal region receive lymph mainly from the
D) abdominal viscera.
Lymph enters a node through a(an) ________ lymphatic vessel.
Afferent
The lymphatic trunk that drains the head and neck is called the ________ trunk.
Jugular
peyer's patches, tonsils, and the appendix constitute this group
MALTs
Lymphatic vessels contain ________ that help prevent the backflow of lymph.
Valves
large lymphatic organ that filters both blood and lymph
spleen
The lymph nodes associated with the lymphatic vessels that drain the lower limbs are located in the ________ region.
Inguinal
Lymph nodes contain large numbers of white blood cells called ________ and macrophages that fight invading microorganisms.
Lymphocytes
Lymphatic vessels usually lead to ________ that filter the fluid being transported.
Lymph nodes
The lymphatic trunk that drains the abdominal viscera is called the ________ trunk.
Intestinal
type of humoral immunity that you can receive from your mother or an antiserum
passive
cytotoxic and helper cells
T cells
type of humoral immunity that you get by being exposed to a disease or vaccine
active
an important phagocyte of the lymph system
macrophage
nonspecific immunity that your are born with
innate
the process of a cell engulfing a foreign substance
phagocytosis
specific, acquired immunity
adaptive
substances released from a cell infected with a virus
interferons
antibody producing
B cells
The primary functions of lymph include
A) both returning proteins to the bloodstream and transporting foreign particles to the lymph nodes.
The functions of the lymphatic system do not include
B) transporting hormones to intestinal smooth muscle.
The lymph nodes of the cervical region receive lymph mainly from the
B) scalp and face.
The cells that are primarily responsible for immunity are
D) lymphocytes and macrophages.
Low-grade fever is an effective defense for short periods of time because it is thought
B) an increase in temperature slows the growth of bacteria.
Lymph nodes occur in groups throughout the body except in the
A) central nervous system
If a cut on the palm becomes infected, the __________ will enlarge.
B) supratrochlear region
An antigen is ______, whereas an antibody is ______.
B) a substance such as a protein or a polysaccharide expressed on the surface of a cell; a globular protein that reacts with an antigen
