NCTI A&P FINAL VERSION 2 LATEST 2025 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
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
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Which of the following is the first stage of homeostasis -
ANSWER-Contractions of the smooth muscle of the blood vessel.
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
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What is the most abundant component of plasma? - ANSWER-
Water
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.