The specific stroma of the thymus is reticulo-epithelial tissue.
Yes
No
Afferent lymph vessels enter the lymph node through its hilum.
Blood thymic barrier is in the cortex of the organ
The capillaries of the bone marrow are sinusoids (discontinous)
The cortex of the lymph nodes is made of lymph follicles
Malpigian bodies of the spleen are made of lymphatic nodules.
The stroma of the tonsil is a reticular connective tissue
Malpigian bodies of the spleen and periarterial lymphatic sheaths (PALS) comprise the splenic red pulp.
Proliferation of B lymphocytes takes place in the cortex of the lymph node.
The stroma of the tonsil is a loose connective tissue
The lymphatic tissue of the tonsil is organised into lymphatic nodules
The lymphatic tissue of the thymus is organised into lymphatic nodules.
Yellow bone marrow is found in the diaphysis of long bones in adults.
Red bone marrow is found in the diaphysis of long bones in adults.
Corpuscles of Hassall are found in the medulla of the thymus
Paracortical zone is typical for:
thymus
lymph node
spleen
bone marrow
The blood vessel which is a part of the corpus Malpighii is called:
a. trabecularis
aa. pulpae albae
aa. lymphonoduli (centrales)
aa. penicillares
The lymphatic system is made out of the following except the:
lymph
lymph nodes
isolated nodules of lymphatic tissue, tonsils, thymus & spleen
liver
Central organ of the lymphatic system is:
tonsils
Lymph is filtered through what?
lymph ducts
lymph vessels
Lymph is usually __________ fluid.
clear
transparent
colorless
all of the above
The thymus:
is the source of lymphocytes before birth and enables lymphocytes to develop into T cells.
produces new cells and destroys the old (haematopoiesis)
is a blood reservoir
defends by initiating macrophages to remove microorganisms in blood and phagocytose them.
Which about the spleen is false:
it produces new cells and destroys the old (haematopoiesis)
it is a blood reservoir
it defends by initiating macrophages to remove microorganisms in blood and phagocytose them
it is the source of lymphocytes before birth and enables lymphocytes to develop into T cells.
The composition of lymph is most similar to:
blood
serum
plasma
interstitial fluid
The formation of lymph increases as a result of:
increasing osmotic pressure in blood capillaries
increasing osmotic pressure in tissue fluid
decreasing volume of tissue fluid
decreasing protein concentration in tissue fluid
Tissue fluid is ________ and lymph is __________
forced out of lymph vessels; absorbed into lymph vessels
forced out of blood plasma; absorbed into blood capillaries
generally rich in proteins; rich in proteins and foreign particles
forced out of blood plasma and generally lacking in proteins; absorbed into lymph capillaries and rich in proteins and foreign particles
Which of the following is not a function of the spleen?
site of stem cell maturation into T and B cells
destruction of blood-borne pathogens by macrophages
removal of worn-out blood cells and platelets by macrophages
storage of platelets
Which person most likely has the largest thymus gland?
a third trimester fetus
a two year old
a 12 year old
a 25 year old
Typical for the parenchyma of the spleen are:
lymphoid cords
Hassall's bodies
lobes with stroma and parenchime
corpuscules of Malpighii
Typical for the medulla of the thymus is: (pick true ones)
antigen-dependent differentiation
lymph follicles
Typical for the tonsil is: (pick true ones)
made of lymphoid tissue and epithelium
network of lymph vessels
stroma of reticular tissue
the epithelium makes crypts
Typical for the lymph node is: (pick true)
the stroma is loose connective tissue
the stroma is reticular connective tissue
lobules with cortex and medulla
lymph folicles
corpus Malpighii
