Notes in histology

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Published	11/05/2024	types of Mucosa associated lymphoid tissues (MALT)
Published	11/05/2024	define immunity
Published	11/05/2024	only Ig {{c1::G}} can pass the placenta
Published	11/05/2024	Delete
Published	11/05/2024	types of lymphatic organs based on function
Published	11/05/2024	types of lymphatic organs based on histology
Published	11/05/2024	capsulated lymphatic organs
Published	11/05/2024	enumerate non-encapsulated lymphatic organs
Published	11/05/2024	the thymus is {{c1::retrosternal}} in position
Published	11/05/2024	the thymus involutes due to the effect of {{c1::sex hormones}}
Published	11/05/2024	when the thymus involutes it becomes infiltrated by {{c1::adipose cells}} near {{c2::puberty}} (age)
Published	11/05/2024	embryonic origins of thymus
Published	11/05/2024	stroma of thymus
Published	11/05/2024	the capsule of the thymus is formed of {{c1::irregular collagenous connective tissue}}
Published	11/05/2024	the trabecule of the thymus divides it into {{c1::incomplete}} lobules
Published	11/05/2024	content of capsule and trabecule of thymus
Published	11/05/2024	site of reticular fibers in the thymus
Published	11/05/2024	the parenchyma of the thymus is formed of {{c1::cortex}} & {{c1::medulla}}
Published	11/05/2024	content of cortex of thymus
Published	11/05/2024	there are {{c1::6}} types of ERCs (epitherlioreticular cells)
Published	11/05/2024	function of Type 1 ERCs
Published	11/05/2024	site type 2 ERCs
Published	11/05/2024	appearance of type 2 ERCs by LM
Published	11/05/2024	appearance of type 2 ERCs by EM
Published	11/05/2024	function of ERCs type 2
Published	11/05/2024	site of type 3 ERCs
Published	11/05/2024	junctions between type 3 ERCs
Published	11/05/2024	function of type 3 ERCs
Published	11/05/2024	why are ERCs called epithelial cells
Published	11/05/2024	function of ERC in cortex of thymus
Published	11/05/2024	example of hormones synthesized by ERC in cortex of thymus
Published	11/05/2024	what are T lymphoblasts
Published	11/05/2024	as lymphocytes mature in the thymus move towards the {{c1::medulla}}
Published	11/05/2024	{{c1::90}}% of maturing Thymocytes die in the cortex of the thymus
Published	11/05/2024	mature thymocytes in thymus migrate to {{c1::medulla}} and enter {{c1::the blood stream}}
Published	11/05/2024	enumerate thymus-dependent zones
Published	11/05/2024	content of Medulla of the thymus
Published	11/05/2024	difference in appearance between ERCs in medulla and cortex in thymus
Published	11/05/2024	appearance of hassal's corpuscles (acidophilic structure)
Published	11/05/2024	hassal's corpuslces are fromed by {{c1::degradation and calcification of ERC}}
Published	11/05/2024	function of hassal's corpuscles
Published	11/05/2024	the blood thymic barrier is formed of what?
Published	11/05/2024	function of blood-thymic barrier
Published	11/05/2024	function of the thymus
Published	11/05/2024	blood supply for thymus (path of blood vessels)
Published	11/05/2024	define lymphatic nodules (lymphoid follicles)
Published	11/05/2024	site of lymphatic nodules (lymphoid follicles)
Published	11/05/2024	cells in lymphatic nodules (lymphoid follicles)
Published	11/05/2024	types of lymphatic nodules (lymphoid follicles)
Published	11/05/2024	features of primary lymphatic nodules (lymphoid follicles)
Published	11/05/2024	features of secondary lymphatic nodules (lymphoid follicles)
Published	11/05/2024	the germinal center represents {{c1::proliferated B-lymphocytes}} and {{c1::their plasma cells (secrete antibodies)}}
Published	11/05/2024	why does the germinal center have lighter staining than mantle zone
Published	11/05/2024	the number of {{c1::FDCs}} and {{c1::macrophages}} in the germinal center increase after exposure to antigen
Published	11/05/2024	the mantle zone of secondary lymphatic nodules reperesnt {{c1::small lymphocytes that encircles the germinal center}}
Published	11/05/2024	size of lymph nodes
Published	11/05/2024	surfaces of lymph nodes
Published	11/05/2024	which vessels (efferent or afferent) of lymph nodes have valves
Published	11/05/2024	largest lymphoid organ
Published	11/05/2024	only lymphoid organ with afferent lymphatics
Published	11/05/2024	the capsule of the spleen is formed of {{c1::CT fibers}} & {{c1::myofibroblasts}}
Published	11/05/2024	the capsule of the spleen is thickened at the {{c1::hilum}}
Published	11/05/2024	the capsule of the spleen is covered by {{c1::the peritoneum}}
Published	11/05/2024	the trabecula divide the spleen into {{c1::irregular compartments}}
Published	11/05/2024	the stroma of the spleen is formed of {{c1::capsule}}, {{c1::trabeculae}} and {{c1::reticular fibers}}
Published	11/05/2024	parenchyma of the spleen is formed of {{c1::white pulp}} and {{c1::red pulp}}
Published	11/05/2024	the white pulp of the spleen consists of the {{c1::periarterial lymphatic sheath}}, {{c1::lymphoid nodules}} and {{c1::marginal zone}}
Published	11/05/2024	lymphoid nodules in the spleen are usually {{c1::secondary}} (primary/secondary)
Published	11/05/2024	the splenic artery divides into trabecular arteries which give rise to {{c1::central arterioles}}
Published	11/05/2024	central arterioles in the spleen are covered by {{c1::lymphoid tissue}} forming the {{c2::periarterial lymphatic sheath (PALS)}}
Published	11/05/2024	the periarterial lymphatic sheath (PALS) is surrounded by {{c1::lymph nodules}}
Published	11/05/2024	site of thymus dependent zone in spleen
Published	11/05/2024	lymph nodules in the spleen are traversed by {{c1::follicular arteries (or central arteriole)}}
Published	11/05/2024	the lymph nodules in the spleen are formed of {{c1::B lymphocytes}}, {{c1::macrophages}} and {{c1::follicular dendritic}}
Published	11/05/2024	in the spleen, the {{c1::marginal zone}} represents the border between the white and red pulp
Published	11/05/2024	the first site of contact between the blood and splenic parenchyma
Published	11/05/2024	the marginal zone of the white pulp consists of what?
Published	11/05/2024	red pulp of spleen is formed of {{c1::splenic sinusoids}} and {{c1::splenic cords}}
Published	11/05/2024	features of the endothelium of the splenic sinusoids
Published	11/05/2024	features of basement membrane of splenic sinusoids
Published	11/05/2024	splenic sinusoids have a {{c1::wide}} lumena
Published	11/05/2024	function of slit-like spaces between endotheium in splenic sinusoids
Published	11/05/2024	{{c1::macrophages}} are associated with splenic sinusoids
Published	11/05/2024	define splenic cords
Published	11/05/2024	splenic cords are also called {{c1::cords of billroth}}
Published	11/05/2024	splenic cords consists of what?
Published	11/05/2024	in the spleen, the centeral arteries leave the white pulp to give {{c1::penicillar arterioles}}
Published	11/05/2024	in the spleen, the penicillar arterioles are also called {{c1::ellipsoids}}
Published	11/05/2024	penicillar arterioles (in spleen) either end in sinuses or {{c1::terminal arterioles}}
Published	11/05/2024	removal of spleen may lead to
Published	11/05/2024	theories of splenic circulation
Published	11/05/2024	define the closed circulation theory of the spleen
Published	11/05/2024	define the open circulation theory of the spleen
Published	11/05/2024	define the open-closed circulation theory of the spleen
Published	11/05/2024	functions of the spleen
Published	11/05/2024	lymphatic sinuses are present in {{c1::lymph nodes }}
Published	11/05/2024	types of tonsils
Published	11/05/2024	define tonsils
Published	11/05/2024	site of palatine tonsils
Published	11/05/2024	shape &number of palatine tonsils
Published	11/05/2024	number of pharyngeal tonsils
Published	11/05/2024	site of pharyngeal tonsils
Published	11/05/2024	the palatine tonsils is formed of
Published	11/05/2024	type of epithelium covering of palatine tonsils
Published	11/05/2024	features of epithelium covering of palatine tonsils
Published	11/05/2024	{{c1::mucous gland}} can be seen on the outside of the capsule of the palatine tonsils
Published	11/05/2024	the capsule of the palatine tonsils separates the tonsils from the {{c1::pharyngeal wall}}
Published	11/05/2024	site of lingual tonsils
Published	11/05/2024	covering epithelium of pharyngeal tonsils
Published	11/05/2024	covering epithelium of lingual tonsils
Published	11/05/2024	epithelial invaginations in lingual tonsils
Published	11/05/2024	epithelial invaginations in pharyngeal tonsils
Published	11/05/2024	thickness of capsule of pharyngeal tonsils
Published	11/05/2024	thickness of capsule of lingual tonsils
Published	11/05/2024	function of tonsils
Published	11/05/2024	M cells stands for {{c1::Membrane-like epithelial}} cells
Published	11/05/2024	M cells are also called {{c1::Follicle associated epithelial (FAE)}} cells
Published	11/05/2024	shape of M cells
Published	11/05/2024	M cells have {{c1::few}} (many/few) lysososmes
Published	11/05/2024	the M cells adhere to columnar cells by {{c1::junctional complex}}
Published	11/05/2024	content of cavity of M cells
Published	11/05/2024	function of M cells
Published	11/05/2024	M cells transport antigen to the underlying {{c1::macrophages}}
Published	11/05/2024	macrophages under M cells activate {{c1::B lymphocytes}}
Published	11/05/2024	path of active B lymphocytes in gut (found under M cells)
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