1|Page
NCTI A&P Final 2025 Version 2|| QUESTIONS AND
CORRECT DETAILED ANSWERS||VERIFIED EXAM!!!
(VERIFIED ANSWERS) |ALREADY GRADED
A+||NEWEST EXAM!!!
The heart muscle is supplied with oxygen through the
coronary arteries. Which of the following correctly
describes where the arteries supplies blood to? -
ANSWER-Circumflex to the posterior left ventricle, right
coronary artery to the right atrium and right ventricle.
What does Frank Starlings rule of the heart say will
happen to the cardiac muscle? - ANSWER-The more the
myocardium is stretched, the stronger the contration.
Where are the baroreceptors located? - ANSWER-In the
heart, aortic arch, and carotid bodies
What is the outermost protective layer of the heart called?
- ANSWER-Pericardium
Which of the following is the first stage of homeostasis -
ANSWER-Contractions of the smooth muscle of the blood
vessel.
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If the blood pressure were to fall below normal, which of
the following would occur? - ANSWER-Increase the SA
node activity.
The entrance to each capillary is guarded by a band of
smooth muscle that controls the flow of blood into the
capillary. What is the smooth muscle here called? -
ANSWER-Precapillary sphincter
The release of epinephrine from the sympathetic nervous
system will have what effect on the heart rate? -
ANSWER-Increase heart rate
A person with type A- blood may receive blood from which
of the following blood types? - ANSWER-O-
Muscle cells of the heart have an intrinsic nature to
contract with no outside stimulation. What is this unique
characteristic called? - ANSWER-Automaticity
What is the most abundant component of plasma? -
ANSWER-Water
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When is the heart muscle perfused by the coronary
arteries? - ANSWER-Diastole
Which part of the conduction system will the cardiac signal
travel to after leaving the atrioventricular (AV) node? -
ANSWER-Bundle of His
Where is the primary site of blood formation in adults? -
ANSWER-Bones
What is afterload defined as? - ANSWER-The pressure
from the aorta the heart must contract against.
Which of the following is true about arteries? - ANSWER-
They have higher internal pressures than veins.
How are platelets activated to form clots? - ANSWER-
Rough areas in the vascular walls.
Where is erythropoietin (EPO) released from when oxygen
levels decrease? - ANSWER-Kidneys
NCTI A&P Final 2025 Version 2|| QUESTIONS AND
CORRECT DETAILED ANSWERS||VERIFIED EXAM!!!
(VERIFIED ANSWERS) |ALREADY GRADED
A+||NEWEST EXAM!!!
The heart muscle is supplied with oxygen through the
coronary arteries. Which of the following correctly
describes where the arteries supplies blood to? -
ANSWER-Circumflex to the posterior left ventricle, right
coronary artery to the right atrium and right ventricle.
What does Frank Starlings rule of the heart say will
happen to the cardiac muscle? - ANSWER-The more the
myocardium is stretched, the stronger the contration.
Where are the baroreceptors located? - ANSWER-In the
heart, aortic arch, and carotid bodies
What is the outermost protective layer of the heart called?
- ANSWER-Pericardium
Which of the following is the first stage of homeostasis -
ANSWER-Contractions of the smooth muscle of the blood
vessel.
,2|Page
If the blood pressure were to fall below normal, which of
the following would occur? - ANSWER-Increase the SA
node activity.
The entrance to each capillary is guarded by a band of
smooth muscle that controls the flow of blood into the
capillary. What is the smooth muscle here called? -
ANSWER-Precapillary sphincter
The release of epinephrine from the sympathetic nervous
system will have what effect on the heart rate? -
ANSWER-Increase heart rate
A person with type A- blood may receive blood from which
of the following blood types? - ANSWER-O-
Muscle cells of the heart have an intrinsic nature to
contract with no outside stimulation. What is this unique
characteristic called? - ANSWER-Automaticity
What is the most abundant component of plasma? -
ANSWER-Water
, 3|Page
When is the heart muscle perfused by the coronary
arteries? - ANSWER-Diastole
Which part of the conduction system will the cardiac signal
travel to after leaving the atrioventricular (AV) node? -
ANSWER-Bundle of His
Where is the primary site of blood formation in adults? -
ANSWER-Bones
What is afterload defined as? - ANSWER-The pressure
from the aorta the heart must contract against.
Which of the following is true about arteries? - ANSWER-
They have higher internal pressures than veins.
How are platelets activated to form clots? - ANSWER-
Rough areas in the vascular walls.
Where is erythropoietin (EPO) released from when oxygen
levels decrease? - ANSWER-Kidneys
