Nuclear Medicine Board Review 9th Edition PDF: Ace Your Boards

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Nuclear Medicine Board Review 9.0 Newest 2025

Actual Exam| Complete Questions and Correct Detailed

Answers (Verified Answers) Already Graded A+ (Brand

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where does the heart rest? .....ANSWER..... mediastinum

what is the sac surrounding the heart? .....ANSWER.....

pericardium

what are the three layers of the heart? .....ANSWER..... the

epicardium (external layer), the myocardium (middle layer) and

the endocardium (inner layer).

what are the 4 chambers of the heart? .....ANSWER..... left

atrium, right atrium, left ventricle, right ventricle

where is the tricuspid valve? .....ANSWER..... between right atrium

and right ventricle

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where is the mitral valve located? .....ANSWER..... between left

atrium and left ventricle

Where does deoxygenated blood enter the heart?

.....ANSWER..... right atrium from superior and inferior vena cava

what is ventricular diastole? .....ANSWER..... relaxation/filling

stages, where the tricuspid valve opens and allows blood to flow

from the right atrium to the right ventricle

what is ventricular systole? .....ANSWER..... contraction of

ventricles where blood exits the right ventricle through the

pulmonary valve into the pulmonary arteries then to the lungs

Where oxygen and carbon dioxide are exchanged

.....ANSWER..... alveoli (blood becomes 02 rich)

where does oxygenated blood enter? .....ANSWER..... left atrium

through the pulmonary veins to the mitral valve to the left

ventricle (during diastole)

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where does the blood enter during ventricular systole?

.....ANSWER..... into systemic circulation through the aortic valve

then to the aorta to the body

what areas of the heart does the right coronary artery supply?

.....ANSWER..... posterior descending artery (PDA) and posterior

and inferior area of myocardium

where does the left coronary artery go and supply blood to?

.....ANSWER..... branches into left anterior descending and left

circumflex artery, provides blood to septal and anterior

myocardial wall

what is systemic circulation? .....ANSWER..... oxygenated blood

away from the heart to the body and returns deoxygenated

blood to the heart

what is a cardiac cycle? .....ANSWER..... period from one heart

contraction (systole) to the next

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what does the electrical impulse in the heart do? .....ANSWER.....

initiates contraction starting at the SA node

where is the SA node and what is its role? .....ANSWER..... in the

right atrium and is the pacemaker of the heart

after the SA node where is the electric signal sent to?

.....ANSWER..... AV node (atrioventricular node)

what occurs at the AV node? .....ANSWER..... impulse is slowed

(gatekeeper to ventricles allowing 40-60 impulses a minute)

after the AV node where is the electric signal sent to?

.....ANSWER..... Bundle of His (AV bundle branch) to the right and

left bundle branches

what is the role of the bundle branches? .....ANSWER..... carry

impulses to the tips of the ventricles

what is unique about the bundle of his (AV bundle)

.....ANSWER..... have special cells for electrical conduction