Rio Bio 202 EXAM PRACTICE EXAM AND STUDY
GUIDE NEWEST 2024 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Tunica Intima - Answer- internal-contains endothelium
Tunica Media - Answer- (middle)-layers of elastin and smooth muscle cells, where
vasoconstriction/dilation occurs
Tunica Externa - Answer- (external)-loosely woven collagen fibers, also contains
nerves/elastin fibers/lymph vessels
Elastic Arteries - Answer- (Conducting)-located near the heart, aorta and branches,
largest in diameter
Muscular Arteries - Answer- (Distributing)-majority of 'named' arteries, deliver blood to
specific organs
Arterioles - Answer- smallest of arteries, determine blood flow into capillaries through
constriction/dilation
Continuous Capillaries - Answer- abundant in muscles/skin, tight junctions formed by
endothelial cells gaps in those junctions=intercellular clefts, compile *blood brain
barrier*
Fenestrated Capillaries - Answer- endothelial cells contain pores or fenestrations, found
in the kidneys
Sinusodal Capillaries - Answer- -'leaky' capillaries, found in *liver, bone marrow, lymph
and endocrine tissues*, contain large intercellular clefts
Venules - Answer- begin at capillaries, extremely porous, fluids/WBCs move easily in
and out
Veins - Answer- *thinner walls, larger lumens compared to arteries*
veins hold a large blood volume
Contain *venous valves (prevent backflow of blood)*
Microcirculation - Answer- flow of blood through capillary bed from arteriole to venule
2 types of vessels in capillary beds - Answer- Vascular shunt, true capillaries
Vascular Shunts - Answer- connects arteriole and venule
, True Capillaries - Answer- exchange vessels
Pulmonary Circulation - Answer- Right Ventricle --> Pulmonary trunk --> Right and Left
Pulmonary Arteries --> Lobar Arteries --> Arterioles --> Pulmonary Capillaries (site of
gas exchange) --> Venules --> Pulmonary Veins --> Left Atrium
Hepatic Portal System - Answer- serves to carry blood from the digestive organs
containing nutrients to the liver
Portal System - Answer- "vein" circuit involving veins to capillaries to veins
Superior Mesenteric Vein - Answer- -emptying from small intestine, ascending and
transverse large intestine, and stomach
Splenic Vein - Answer- -joins with superior mesenteric vein to comprise hepatic portal
vein
-drains spleen
-part of stomach and pancreas
Inferior Mesenteric Vein - Answer- -joins splenic vein right before junction with superior
mesenteric vein
-empties rectum/distal large intestine
Lymphatic Vessels - Answer- Lymphatic caplillaries
lymphatic collecting vessles
Lymphatic caplillaries - Answer- -contain minivalves of loosely overlapping epithelial
cells, collagen filaments anchor the endothelial cells
Lymphatic collecting vessles - Answer- -normal 3 tunics with thin walls and more
internal valves with more anastamoses
Lymphatic Trunks and Ducts
Lymph - Answer- interstitial fluids with plasma proteins once in the lymphatics
Lymphoid Organs - Answer- spleen, thymus, tonsils
Spleen - Answer- blood 'cleanser', site of immune survey/response, lymphocyte growth,
white pulp, red pulp
White Pulp - Answer- area of mostly lymphocytes
Red Pulp - Answer- remaining tissue including venous sinuses and splenic cords
Thymus - Answer- 2 lobes, function greater in young
GUIDE NEWEST 2024 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Tunica Intima - Answer- internal-contains endothelium
Tunica Media - Answer- (middle)-layers of elastin and smooth muscle cells, where
vasoconstriction/dilation occurs
Tunica Externa - Answer- (external)-loosely woven collagen fibers, also contains
nerves/elastin fibers/lymph vessels
Elastic Arteries - Answer- (Conducting)-located near the heart, aorta and branches,
largest in diameter
Muscular Arteries - Answer- (Distributing)-majority of 'named' arteries, deliver blood to
specific organs
Arterioles - Answer- smallest of arteries, determine blood flow into capillaries through
constriction/dilation
Continuous Capillaries - Answer- abundant in muscles/skin, tight junctions formed by
endothelial cells gaps in those junctions=intercellular clefts, compile *blood brain
barrier*
Fenestrated Capillaries - Answer- endothelial cells contain pores or fenestrations, found
in the kidneys
Sinusodal Capillaries - Answer- -'leaky' capillaries, found in *liver, bone marrow, lymph
and endocrine tissues*, contain large intercellular clefts
Venules - Answer- begin at capillaries, extremely porous, fluids/WBCs move easily in
and out
Veins - Answer- *thinner walls, larger lumens compared to arteries*
veins hold a large blood volume
Contain *venous valves (prevent backflow of blood)*
Microcirculation - Answer- flow of blood through capillary bed from arteriole to venule
2 types of vessels in capillary beds - Answer- Vascular shunt, true capillaries
Vascular Shunts - Answer- connects arteriole and venule
, True Capillaries - Answer- exchange vessels
Pulmonary Circulation - Answer- Right Ventricle --> Pulmonary trunk --> Right and Left
Pulmonary Arteries --> Lobar Arteries --> Arterioles --> Pulmonary Capillaries (site of
gas exchange) --> Venules --> Pulmonary Veins --> Left Atrium
Hepatic Portal System - Answer- serves to carry blood from the digestive organs
containing nutrients to the liver
Portal System - Answer- "vein" circuit involving veins to capillaries to veins
Superior Mesenteric Vein - Answer- -emptying from small intestine, ascending and
transverse large intestine, and stomach
Splenic Vein - Answer- -joins with superior mesenteric vein to comprise hepatic portal
vein
-drains spleen
-part of stomach and pancreas
Inferior Mesenteric Vein - Answer- -joins splenic vein right before junction with superior
mesenteric vein
-empties rectum/distal large intestine
Lymphatic Vessels - Answer- Lymphatic caplillaries
lymphatic collecting vessles
Lymphatic caplillaries - Answer- -contain minivalves of loosely overlapping epithelial
cells, collagen filaments anchor the endothelial cells
Lymphatic collecting vessles - Answer- -normal 3 tunics with thin walls and more
internal valves with more anastamoses
Lymphatic Trunks and Ducts
Lymph - Answer- interstitial fluids with plasma proteins once in the lymphatics
Lymphoid Organs - Answer- spleen, thymus, tonsils
Spleen - Answer- blood 'cleanser', site of immune survey/response, lymphocyte growth,
white pulp, red pulp
White Pulp - Answer- area of mostly lymphocytes
Red Pulp - Answer- remaining tissue including venous sinuses and splenic cords
Thymus - Answer- 2 lobes, function greater in young
