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The nurse is discussing the blood flow pattern of the heart. The nurse should recognize which of the following as the accurate blood flow pattern of the heart?

Aorta-Right atrium-right ventricle-pulmonary vein-lungs- pulmonary artery left atrium-left ventricle

vena cava-right atrium-right ventricle-pulmonary vein-lungs- pulmonary artery-left atrium-left ventricle

vena cava→ right atrium-right ventricle-pulmonary artery-lungs- pulmonary vein-left atrium-left ventricle

Aorta-right atrium-right ventricle-lungs-pulmonary vein-left atrium-left ventricle- vena cava

Answer and Explanation

The Correct Answer is C

In this sequence:

Vena cava brings deoxygenated blood from the body into the right atrium.

Blood flows from the right atrium to the right ventricle through the tricuspid valve.

The right ventricle pumps blood into the pulmonary artery to the lungs.

In the lungs, blood is oxygenated and returns to the heart via the pulmonary veins into the left atrium.

From the left atrium, blood moves to the left ventricle through the bicuspid (mitral) valve.

The left ventricle then pumps oxygenated blood into the body through the aorta.

This sequence represents the systemic and pulmonary circulation of the heart.

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Correct Answer is D

Explanation

A. The eyes converge to focus on the light.

This statement refers to the convergence reflex, where both eyes move medially (towards each other) to maintain single binocular vision when focusing on a near object. It is not related to the pupillary light reflex, which involves changes in pupil size in response to light.

B. The eye focuses the image in the center of the pupil.

This choice does not accurately describe the pupillary light reflex. The pupillary light reflex involves constriction of the pupil in response to light, not focusing an image in the center of the pupil.

C. Dilation of both pupils occurs in response to bright light.

This statement is incorrect. In response to bright light, the pupils should constrict, not dilate. Dilation of pupils in bright light could indicate an abnormal response, such as in cases of certain neurological conditions or drug use.

D. Constriction of both pupils occurs in response to bright light.

This choice is correct. In the pupillary light reflex, both pupils constrict when exposed to bright light. This response is a protective mechanism to prevent excessive light from entering the eyes, ensuring optimal visual acuity.

A. The atria contract toward the end of diastole and push the remaining blood into the ventricles. B. The atria contract during systole and attempt to push against closed valves. C. Atrial kick is the pressure exerted against the atria as the ventricles contract during systole. D. Contraction of the atria at the beginning of diastole can be felt as a palpitation.

Correct Answer is A

Explanation

A. The atria contract toward the end of diastole and push the remaining blood into the ventricles.

This choice is correct. During atrial systole (atrial contraction), the atria contract, pushing the remaining blood into the ventricles. This additional filling of the ventricles optimizes cardiac output.

B. The atria contract during systole and attempt to push against closed valves.

This statement is incorrect. The atria do not contract during systole; they contract during diastole (atrial systole) to fill the ventricles.

C. Atrial kick is the pressure exerted against the atria as the ventricles contract during systole.

This statement is incorrect. Atrial kick refers to the atrial contraction, not the pressure exerted against the atria.

D. Contraction of the atria at the beginning of diastole can be felt as a palpitation.

This statement is not entirely accurate. A palpitation is a sensation of rapid or strong heartbeat, which might be felt during various cardiac events, not specifically during atrial contraction at the beginning of diastole.

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The nurse is discussing the blood flow pattern of the heart. The nurse should recognize which of the following as the accurate blood flow pattern of the heart?

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Naxlex Comprehensive Predictor Exams

A nurse documents that the client has a normal pupillary light reflex. The nurse should recognize that this reflex indicates which of the following?

Correct Answer is D

Explanation

A nurse is reviewing the anatomy and physiologic functioning of the heart. The nurse should recognize that which statement best describes the atrial kick?

Correct Answer is A

Explanation

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