Lab 4: Latest Update

BIOD152 / BIOD 152 Module 4 &

Lab 4: (Latest Update 2025 / 2026)

Essential Human Anatomy & Physiology II with Lab | Questions & Answers | Grade A | 100% Correct - Portage Learning

Question:

Oxygenated blood is pumped from heart through the _______to the rest of the body.

• Left, systemic circuit
• Right, pulmonary circuit
• Left, pulmonary circuit
• Right, systemic circuit

Answer:

• Left, systemic circuit

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Question:

The "pacemaker of the heart" is in what location?

• Right atrium
• Left atrium
• Left ventricle
• Right ventricle

Answer:

• Right atrium

Question:

You are reviewing your patient's results from an EKG. The findings indicate a problem with ventricular REPOLARIZATION. Where should you look on the EKG to find this abnormal rhythm?

• T-wave
• QRS complex
• P-wave
• The electrical activity cannot be read on an EKG

Answer:

• T-wave

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Question:

You are reviewing your patient's results from an EKG. The findings indicate a problem with ventricular DEPOLOARIZATION. Where should you look on the EKG to find this abnormal rhythm?

• T-wave
• QRS complex
• P-wave
• The electrical activity cannot be read on an EKG

Answer:

• QRS complex

Question:

Your patient's EKG results indicate difficulty with left and right atrial systole.What part of the conduction system is not functioning properly?

• Atrioventricular node.
• SA node causes contraction of the left and right atria
• Bundle of His
• Purkinje fibers

Answer:

• SA node

(causes contraction of the left and right atria) 3 / 4

Question:

Which statement is true concerning the cardiac cycle?

• The atrial contraction time is longer than the ventricle contraction time.
• The ventricular contraction time is longer than the atrial contraction time.
• Systole refers to the relaxation of the heart chambers.
• Diastole refers to the contraction of the heart chambers.
• C & D are true

Answer:

• The ventricular contraction time is longer than the atrial contraction time.

Question:

A patient is suspected to have peripheral edema due to heart failure. Which side of the heart would be in failure? Explain your answer.

Answer:

The right side of the heart would be in failure. When the right side of the heart cannot pump blood into the heart efficiently, the blood and fluid will back up into the veins. This results in swelling of body tissues.

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