ATI RN
Common Questions About The Reproductive System Questions
Question 1 of 5
Expiration is usually passive and occurs with the cessation of inspiratory contractions.
Correct Answer: A
Rationale: True (A): Quiet expiration is passive, from elastic recoil after inspiratory muscles relax. False (B) is incorrect.
Question 2 of 5
The release of O₂ from hemoglobin is termed oxygenation.
Correct Answer: B
Rationale: False (B): Oxygenation is O₂ binding to hemoglobin; release is deoxygenation. True (A) is incorrect.
Question 3 of 5
Muscle contractions that normally move food along the human digestive system are known as
Correct Answer: C
Rationale: Peristalsis (C) is the rhythmic contraction moving food through the digestive tract. Defecation (A) is elimination, osmosis (B) is water movement, and circulation (D) is blood flow.
Question 4 of 5
What is the normal pH of human arterial blood?
Correct Answer: B
Rationale: Normal arterial blood pH is 7.4 (B), slightly alkaline. 6.8 (A) is acidic, 7.9 (C) and 8.2 (D) are too alkaline.
Question 5 of 5
What is one function of the pineal gland?
Correct Answer: A
Rationale: The pineal gland regulates sleep (A) via melatonin. Growth (B) is pituitary, milk production (C) is mammary glands, and inflammation (D) is not its role.