Kin 2YY3 Test 2 Questions With Complete Solutions
3 General Blood Vessel Layers Correct Answers 1) Tunica
Interna (innermost, adj to lumen)
2) Tunica Media (smooth muscle + elastic fibers)
3) Tunica Externa (outermost, adj surrounding tissue)
3 Types of Arteries Correct Answers 1) Elastic
2) Muscular
3) Arterioles
3 Types of Veins Correct Answers 1) Medium/Large veins
2) Small veins
3) Venules
Arteries vs Veins (3) Correct Answers Veins - thinner walls,
less elastic tissue, fewer smooth muscle cells
Arterioles Correct Answers -Blood from small arteries to
capillaries
-Smallest arteries where three tunics can be differentiated
-Capable of vasoconstriction/dilation
-Metarteriole: last arteriole before capillary
CO = ? Correct Answers HR x SV
Mean arterial pressure (MAP) / Resistance (R)
Compare the smoothness of the inside of aorta in humans vs
pigs Correct Answers Smoother in pigs
-Bc of our diet
, -Can lead to atherosclerosis
Descibe hemoglobin + 3 hemoglobins Correct Answers 4
globin molecules (polypeptide chains): 4 heme molecules - each
w 1 iron atom to transport O2 & CO2
Oxyhemoglobin [transport O2]
Deoxyhemoglobin [no O2 bound]
Carbaminohemoglobin [transport CO2]
Describe Basophils Correct Answers 1% of WBCs
Inflammation & allergic response of tissues
Produces histamine (vasodilation + bronchial constriction)
Produces heparin (inhibits blood clotting)
Describe blood composition (%)[+ study from slide L6] Correct
Answers 55% plasma
45% RBC
Describe blood flow through capillaries Correct Answers
arteriole - metarteriole - precapillary sphincters - thoroughfare
channel - postcapillary venule - venule
Describe bone marrow before & after birth Correct Answers
Before: all red bone marrow
After: mostly yellow bone marrow
Describe capillaries Correct Answers -Microscopic vessels
that connect to arterioles & venules
-Thin walls for exchange of nutrients & wastes b/n blood &
tissue cells
3 General Blood Vessel Layers Correct Answers 1) Tunica
Interna (innermost, adj to lumen)
2) Tunica Media (smooth muscle + elastic fibers)
3) Tunica Externa (outermost, adj surrounding tissue)
3 Types of Arteries Correct Answers 1) Elastic
2) Muscular
3) Arterioles
3 Types of Veins Correct Answers 1) Medium/Large veins
2) Small veins
3) Venules
Arteries vs Veins (3) Correct Answers Veins - thinner walls,
less elastic tissue, fewer smooth muscle cells
Arterioles Correct Answers -Blood from small arteries to
capillaries
-Smallest arteries where three tunics can be differentiated
-Capable of vasoconstriction/dilation
-Metarteriole: last arteriole before capillary
CO = ? Correct Answers HR x SV
Mean arterial pressure (MAP) / Resistance (R)
Compare the smoothness of the inside of aorta in humans vs
pigs Correct Answers Smoother in pigs
-Bc of our diet
, -Can lead to atherosclerosis
Descibe hemoglobin + 3 hemoglobins Correct Answers 4
globin molecules (polypeptide chains): 4 heme molecules - each
w 1 iron atom to transport O2 & CO2
Oxyhemoglobin [transport O2]
Deoxyhemoglobin [no O2 bound]
Carbaminohemoglobin [transport CO2]
Describe Basophils Correct Answers 1% of WBCs
Inflammation & allergic response of tissues
Produces histamine (vasodilation + bronchial constriction)
Produces heparin (inhibits blood clotting)
Describe blood composition (%)[+ study from slide L6] Correct
Answers 55% plasma
45% RBC
Describe blood flow through capillaries Correct Answers
arteriole - metarteriole - precapillary sphincters - thoroughfare
channel - postcapillary venule - venule
Describe bone marrow before & after birth Correct Answers
Before: all red bone marrow
After: mostly yellow bone marrow
Describe capillaries Correct Answers -Microscopic vessels
that connect to arterioles & venules
-Thin walls for exchange of nutrients & wastes b/n blood &
tissue cells
