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HESI A2 · Anatomy and Physiology · HESI A2 Anatomy and Physiology Practice Test

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which organ system is primarily responsible for regulating electrolytes?

A. The endocrine system

B. The urinary system

C. The lymphatic system

D. The nervous system

Correct Answer: The urinary system

Question 2 of 5

Which type of muscles are involved in peristalsis?

A. Smooth muscles

B. Cardiac muscles

C. Skeletal muscles

D. Epaxial muscles

Correct Answer: Smooth muscles

Question 3 of 5

What is the primary hormone secreted by the thyroid gland?

A. Oxytocin

B. TSH

C. Adrenaline

D. T4

Correct Answer: T4

Question 4 of 5

Which part of the respiratory system is in the upper respiratory tract?

A. Bronchioles

B. Alveolar ducts

C. Alveoli

D. None of the above

Correct Answer: None of the above

Question 5 of 5

Which mineral helps maintain fluid balance in the body?

A. Potassium

B. Cobalt

C. Chromium

D. Sulfur

Correct Answer: Potassium

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