BIO 209 Exam 2 Questions With Complete Solutions
active humoral immunity Correct Answers occurs when B cells
encounter antigens and produce specific antibodies against them
acute hypotension Correct Answers important sigh of
circulatory shock
ADH Correct Answers high levels can cause vasoconstriction
Agglutination Correct Answers clumping
All capillary endothelial cells are joined___________ Correct
Answers by tight junction called intercellular clefts
Angiotension II Correct Answers stimulates vasoconstriction
antibodies contain Correct Answers 2 identical heavy chains
and 2 identical light chains
Are blood capillaries or lymphatic capillaries more permeable?
Correct Answers lymphatic capillaries
Artifically aquired Correct Answers formed in response to
vaccine of dead or attenuated pathogens
Atrial natriuretic peptide Correct Answers decreases BP by
antagonizing aldosterone, causing decreased blood volume
blood flow is equal to? Correct Answers cardiac output
,CD4 cells become Correct Answers Helper T cells
CD8 cells become Correct Answers Cytotoxic T cells
Class I MCH is crucial for Correct Answers CD8 cell
activation which become cytotoxic cells
deep cortex houses Correct Answers T cells in transit
defensins Correct Answers antimicrobial peptides that inhibit
microbial growth
describe arterioles Correct Answers they are the smallest
arteries, the larger ones contain 2 tunics. they control flow into
capillary beds
Describe capillaries Correct Answers they are microscopic
vessels that only one RBC can pass through at a time and it is
made up of just the tunica intima
describe continuous capillaries? Correct Answers they are
abundant in skin, muscles, lungs and CNS and have tight
junction around the entire perimeter
describe elastic arteries Correct Answers They have thick walls
and consist of the aorta and the major branches. Helps blood go
from the heart to medium sized vessels and expands and recoils
and blood leaves the heart.
Describe fenestrated capillaries? Correct Answers they are
found in active filtration (kidneys), absorption (intestines) and
, endocrine hormone secretion, endothelial cells contain pores
called fenestrations which increase permeability.
Describe muscular arteries Correct Answers delivers blood to
specific body organs, thickest tunica media, less elastic, active in
vasoconstriction
describe sinusoidal capillaries? Correct Answers they have few
tight junctions, found in liver, bone marrow, spleen. and adrenal
medulla. blood flow is sluggish
describe the spleen? Correct Answers is blood-rich organ about
the size of a fist, located in left side of abdominal cavity
diffuse lymphoid tissue Correct Answers loose arrangement of
lymphoid cells and come reticular fibers
Displayed by all cells except RBCs Correct Answers class I
MHC proteins
Displayed by APCs (dendritic cells, macrophages, and B cells)
Correct Answers Class II MHC proteins
does the heart spend more time in diastole or systole Correct
Answers diastole
edema Correct Answers abnormal increase in amount of
interstitial fluid
example of extrinsic control Correct Answers decrease blood
flow to over organs such as kidneys and digestive organs
active humoral immunity Correct Answers occurs when B cells
encounter antigens and produce specific antibodies against them
acute hypotension Correct Answers important sigh of
circulatory shock
ADH Correct Answers high levels can cause vasoconstriction
Agglutination Correct Answers clumping
All capillary endothelial cells are joined___________ Correct
Answers by tight junction called intercellular clefts
Angiotension II Correct Answers stimulates vasoconstriction
antibodies contain Correct Answers 2 identical heavy chains
and 2 identical light chains
Are blood capillaries or lymphatic capillaries more permeable?
Correct Answers lymphatic capillaries
Artifically aquired Correct Answers formed in response to
vaccine of dead or attenuated pathogens
Atrial natriuretic peptide Correct Answers decreases BP by
antagonizing aldosterone, causing decreased blood volume
blood flow is equal to? Correct Answers cardiac output
,CD4 cells become Correct Answers Helper T cells
CD8 cells become Correct Answers Cytotoxic T cells
Class I MCH is crucial for Correct Answers CD8 cell
activation which become cytotoxic cells
deep cortex houses Correct Answers T cells in transit
defensins Correct Answers antimicrobial peptides that inhibit
microbial growth
describe arterioles Correct Answers they are the smallest
arteries, the larger ones contain 2 tunics. they control flow into
capillary beds
Describe capillaries Correct Answers they are microscopic
vessels that only one RBC can pass through at a time and it is
made up of just the tunica intima
describe continuous capillaries? Correct Answers they are
abundant in skin, muscles, lungs and CNS and have tight
junction around the entire perimeter
describe elastic arteries Correct Answers They have thick walls
and consist of the aorta and the major branches. Helps blood go
from the heart to medium sized vessels and expands and recoils
and blood leaves the heart.
Describe fenestrated capillaries? Correct Answers they are
found in active filtration (kidneys), absorption (intestines) and
, endocrine hormone secretion, endothelial cells contain pores
called fenestrations which increase permeability.
Describe muscular arteries Correct Answers delivers blood to
specific body organs, thickest tunica media, less elastic, active in
vasoconstriction
describe sinusoidal capillaries? Correct Answers they have few
tight junctions, found in liver, bone marrow, spleen. and adrenal
medulla. blood flow is sluggish
describe the spleen? Correct Answers is blood-rich organ about
the size of a fist, located in left side of abdominal cavity
diffuse lymphoid tissue Correct Answers loose arrangement of
lymphoid cells and come reticular fibers
Displayed by all cells except RBCs Correct Answers class I
MHC proteins
Displayed by APCs (dendritic cells, macrophages, and B cells)
Correct Answers Class II MHC proteins
does the heart spend more time in diastole or systole Correct
Answers diastole
edema Correct Answers abnormal increase in amount of
interstitial fluid
example of extrinsic control Correct Answers decrease blood
flow to over organs such as kidneys and digestive organs
