Immunity UPDATED ACTUAL Exam
Questions and CORRECT Answers
The lymphatic system absorbs ______ through lacteals in the digestive tract. - CORRECT
ANSWER - lipids
The system that consists of lymphatic vessels, lymph nodes, the tonsils, the spleen and the
thymus gland is the ______ system. - CORRECT ANSWER - lymphatic
Excess fluid in the interstitial spaces is collected by ____ - CORRECT ANSWER -
lymphatic capillaries
Describe the wall of lymphatic capillaries. - CORRECT ANSWER - Thin-walled, with
overlapping squamous cells
Describe the structure of lymphatic vessels. - CORRECT ANSWER - Contains one-way
valves, Consist of 3 layers of tissue
Identify the functions of the lymphatic system. - CORRECT ANSWER - Fluid balance,
Lipid absorption, Defense
Organs that are part of the lymphatic system include lymphatic vessels and lymph nodes as well
as the ____ - CORRECT ANSWER - spleen, thymus, and tonsils
Identify tissues that are lacking lymphatic vessels. - CORRECT ANSWER - Cartilage,
Cornea, Central nervous system
The epithelium of the lymphatic capillaries have one-way valves that allow for fluid to ______
the lymphatic capillaries but not to ______. - CORRECT ANSWER - enter; leave
,Lymph moves when skeletal muscles ____ - CORRECT ANSWER - contract
Lymphatic vessels are anatomically very similar to ____ - CORRECT ANSWER - veins
The functions of the lymphatic system include ____ - CORRECT ANSWER - fluid
balance, lipid absorption and defense
Identify the basic components of lymphatic tissue. - CORRECT ANSWER - Lymphocytes,
Reticular cells, Macrophage
The function of lymphatic capillaries is to ____ - CORRECT ANSWER - collect excess
fluid in the interstitial spaces
Cells that are produced in red bone marrow, mature in either the red bone marrow or thymus,
then circulate to and reside in lymphatic tissue are ____ - CORRECT ANSWER -
lymphocytes
True or false: Lymph is propelled through the lymphatic system by the rhythmic contractions of
the heart. - CORRECT ANSWER - False
Lymphatic structures that allow for interactions between lymphocytes, antigens and antigen-
presenting cells are ______ lymphatic structures. Lymphatic structures that allow for maturation
of lymphocytes are ______ lymphatic structures. - CORRECT ANSWER - secondary,
primary
Lymphatic tissues are built upon ______ and contain primarily ______. - CORRECT
ANSWER - reticular fibers, lymphocytes
Lymphatic tissues are generally ____ - CORRECT ANSWER - nonencapsulated
, True or False: Lymphocytes only mature in the thymus. - CORRECT ANSWER - False
Lymphatic nodules located in the lamina propria of the intestinal mucosa are called ____ -
CORRECT ANSWER - Peyer's patches
The three groups of tonsils include the paired ____ tonsils, the ____ tonsil or the adenoids and
the ____ tonsil on the posterior edge the tongue. - CORRECT ANSWER - palatine,
pharyngeal, lingual
Primary lymphatic organs - CORRECT ANSWER - Site of maturation of lymphocytes
Secondary lymphatic organs and tissues - CORRECT ANSWER - Site of lymphocyte
interaction with antigens and antigen-producing cells; initiation of immune response
Distinct connective tissue capsules surround which of the following? - CORRECT
ANSWER - Lymphatic organs
The red bone marrow and thymus are where lymphatic cells become ____ - CORRECT
ANSWER - immunocompetent
The function of mucosa-associated lymphoid tissue (MALT) is to ____ - CORRECT
ANSWER - prevent microorganisms from penetrating mucous membranes
The lymphatic structures found deep to the mucosa within the pharynx (throat) are called ____ -
CORRECT ANSWER - tonsils
Red bone marrow and the thymus are examples of ______ lymphatic organs. - CORRECT
ANSWER - primary
Small, spherical lymphatic structures that are distributed along lymphatic vessels are ____ -
CORRECT ANSWER - lymph nodes