BSC2086 Exam 2 FSU; Lectures 5-8 Questions With
Complete Solutions
___ does not always accompany a heart attack; therefore, the
condition may go ____ and may not be ____ before a fatal MI
occurs; ____ does NOT necessarily mean a MI is occurring
Correct Answers Pain; undiagnosed; treated; angina
_____ can carry oxygenated or deoxygenated blood, _____ can
also carry either (depends on location) Correct Answers
Arteries; veins
_____ cells in AV node can take over role of SA node if SA
node _____ cells are damaged/non-functional (albeit less
powerful and slower) Correct Answers Pacemaker; pacemaker
_____ of pacemaker potential not affected by sympathetic
stimulation, just the _____ of the potentials. Correct Answers
Strength; frequency
_________ stimulation releases NE, which _____ repolarization
and _____ the rate of spontaneous depolarization. The heart rate
____. Correct Answers Sympathetic; shortens; accelerates;
increases
___________ stimulation releases ACh, which _____
repolarization and _____ the rate of spontaneous depolarization.
The heart rate ____. Correct Answers Parasympathetic;
extends; decreases; slows
,A connective tissue is classified as... Correct Answers tissue
that contains different cell types suspended in a matrix (the
matrix can be either solid or fluid)
Abnormal Pacemaker Function Correct Answers bradycardia,
tachycardia, ectopic pacemaker
Absolute refractory period (heart) Correct Answers •Long
•Cardiac muscle cells cannot respond
Abundance of RBCs Correct Answers RBC count and
hematocrit
Acidophils Correct Answers stains with acidic dyes
Activated platelets release clotting compounds Correct Answers
1. Adenosine diphosphate (ADP)- stimulates platelet
aggregation and secretion
2. Thromboxane A2 and serotonin- causes vascular spasms
3. Clotting factors
4. Platelet-derived growth factor (PDGF)- promotes vessel
repair
5. Calcium ions
Aerobic energy of heart Correct Answers •From mitochondrial
breakdown of fatty acids and glucose
•Oxygen from circulating hemoglobin
•Cardiac muscles store oxygen in myoglobin
Afterload Correct Answers •Tension the ventricle produces to
open the semilunar valve and eject blood
,•Is increased by any factor that restricts arterial blood flow
•As afterload increases, stroke volume decreases
•Ex. Damage to semilunar valves that restrict blood flow into
arteries, constriction of peripheral blood vessels, circulatory
blockage
Agglutinogens Correct Answers •Antigens on surface of RBCs-
usually ignored by your own immune system
•Your immune system screens your body for
agglutinogens/antigens
•Plasma antibodies attack and agglutinate foreign antigens
Agranulocytes Correct Answers monocytes and lymphocytes
Albumins Correct Answers Transport substances such as fatty
acids, thyroid hormones, and steroid hormones
An ECG measures ____ ____ in the heart. It does not directly
measure heart _____. Correct Answers electrical activity;
contraction
An Rh__ person that has never been exposed to Rh__ blood will
not have the ______ against the D antigen. It only produces the
antibodies after it has been first exposed to Rh__ blood. Correct
Answers -; +; antibodies; +
Angina Pectoris (chest pain) Correct Answers •In its most
common form, a temporary ischemia develops when the
workload of the heart increases
•Although the individual may feel comfortable at rest, exertion
or emotional stress can produce a sensation of pressure, chest
, constriction, and pain that may radiate from the sternal area to
the arms, back, and neck
Anterior and posterior interventricular sulcus Correct Answers
•Separate left and right ventricles
•Contain blood vessels of cardiac muscle
Anticoagulants (plasma proteins) Correct Answers inhibit
clotting factors; anticoagulants include: antithrombin-III and
Alpha-2-macroglobulin
Antithrombin-III and Alpha-2-macroglobulin Correct Answers
inhibit thrombin
Aortic Sinuses Correct Answers •At base of ascending aorta
•Sacs that prevent valve cusps from sticking to aorta
•Origin of right and left coronary arteries
•Blood drained from cardiac tissue by cardiac veins, merge
together at coronary sinus
Arteries Correct Answers carry blood away from heart
As the ventricles relax and blood flows through the AV valves,
the ventricles fill ___% full. This ____ mechanism is the _____
method of ventricular filling Correct Answers 70; passive;
primary
Aspirin Correct Answers inhibits production of prostaglandins
and thromboxane A2, reduces platelet aggregation
Complete Solutions
___ does not always accompany a heart attack; therefore, the
condition may go ____ and may not be ____ before a fatal MI
occurs; ____ does NOT necessarily mean a MI is occurring
Correct Answers Pain; undiagnosed; treated; angina
_____ can carry oxygenated or deoxygenated blood, _____ can
also carry either (depends on location) Correct Answers
Arteries; veins
_____ cells in AV node can take over role of SA node if SA
node _____ cells are damaged/non-functional (albeit less
powerful and slower) Correct Answers Pacemaker; pacemaker
_____ of pacemaker potential not affected by sympathetic
stimulation, just the _____ of the potentials. Correct Answers
Strength; frequency
_________ stimulation releases NE, which _____ repolarization
and _____ the rate of spontaneous depolarization. The heart rate
____. Correct Answers Sympathetic; shortens; accelerates;
increases
___________ stimulation releases ACh, which _____
repolarization and _____ the rate of spontaneous depolarization.
The heart rate ____. Correct Answers Parasympathetic;
extends; decreases; slows
,A connective tissue is classified as... Correct Answers tissue
that contains different cell types suspended in a matrix (the
matrix can be either solid or fluid)
Abnormal Pacemaker Function Correct Answers bradycardia,
tachycardia, ectopic pacemaker
Absolute refractory period (heart) Correct Answers •Long
•Cardiac muscle cells cannot respond
Abundance of RBCs Correct Answers RBC count and
hematocrit
Acidophils Correct Answers stains with acidic dyes
Activated platelets release clotting compounds Correct Answers
1. Adenosine diphosphate (ADP)- stimulates platelet
aggregation and secretion
2. Thromboxane A2 and serotonin- causes vascular spasms
3. Clotting factors
4. Platelet-derived growth factor (PDGF)- promotes vessel
repair
5. Calcium ions
Aerobic energy of heart Correct Answers •From mitochondrial
breakdown of fatty acids and glucose
•Oxygen from circulating hemoglobin
•Cardiac muscles store oxygen in myoglobin
Afterload Correct Answers •Tension the ventricle produces to
open the semilunar valve and eject blood
,•Is increased by any factor that restricts arterial blood flow
•As afterload increases, stroke volume decreases
•Ex. Damage to semilunar valves that restrict blood flow into
arteries, constriction of peripheral blood vessels, circulatory
blockage
Agglutinogens Correct Answers •Antigens on surface of RBCs-
usually ignored by your own immune system
•Your immune system screens your body for
agglutinogens/antigens
•Plasma antibodies attack and agglutinate foreign antigens
Agranulocytes Correct Answers monocytes and lymphocytes
Albumins Correct Answers Transport substances such as fatty
acids, thyroid hormones, and steroid hormones
An ECG measures ____ ____ in the heart. It does not directly
measure heart _____. Correct Answers electrical activity;
contraction
An Rh__ person that has never been exposed to Rh__ blood will
not have the ______ against the D antigen. It only produces the
antibodies after it has been first exposed to Rh__ blood. Correct
Answers -; +; antibodies; +
Angina Pectoris (chest pain) Correct Answers •In its most
common form, a temporary ischemia develops when the
workload of the heart increases
•Although the individual may feel comfortable at rest, exertion
or emotional stress can produce a sensation of pressure, chest
, constriction, and pain that may radiate from the sternal area to
the arms, back, and neck
Anterior and posterior interventricular sulcus Correct Answers
•Separate left and right ventricles
•Contain blood vessels of cardiac muscle
Anticoagulants (plasma proteins) Correct Answers inhibit
clotting factors; anticoagulants include: antithrombin-III and
Alpha-2-macroglobulin
Antithrombin-III and Alpha-2-macroglobulin Correct Answers
inhibit thrombin
Aortic Sinuses Correct Answers •At base of ascending aorta
•Sacs that prevent valve cusps from sticking to aorta
•Origin of right and left coronary arteries
•Blood drained from cardiac tissue by cardiac veins, merge
together at coronary sinus
Arteries Correct Answers carry blood away from heart
As the ventricles relax and blood flows through the AV valves,
the ventricles fill ___% full. This ____ mechanism is the _____
method of ventricular filling Correct Answers 70; passive;
primary
Aspirin Correct Answers inhibits production of prostaglandins
and thromboxane A2, reduces platelet aggregation
