ATI RN
Common Questions About The Reproductive System Questions
Question 1 of 5
Which muscle flexes the forearm at the elbow?
Correct Answer: A
Rationale: The bicep (A) flexes the forearm at the elbow. Triceps (B) extends, deltoid (C) moves the shoulder, and flexor carpi ulnaris (D) flexes the wrist.
Question 2 of 5
Which is not part of the limbic system?
Correct Answer: B
Rationale: The medulla oblongata (B) controls vital functions, not limbic (emotion/memory). Olfactory bulb (A), amygdala (C), and hippocampus (D) are limbic.
Question 3 of 5
Which part of the human ear compresses sound waves and passes them to the inner ear?
Correct Answer: C
Rationale: The stirrup (C, stapes) transmits vibrations to the inner ear. Eardrum (A) vibrates, cochlea (B) processes sound, and pinna (D) collects it.
Question 4 of 5
Which of the following are considered normal values for the measure of a person’s pulse and blood pressure?
Correct Answer: B
Rationale: Normal is 72 bpm and 120/80 mm Hg (B). 55 bpm (A) is low, 100 bpm 140/100 (C) is high, and 160 bpm (D) is abnormal.
Question 5 of 5
One-third of the protein in the human body is
Correct Answer: A
Rationale: Collagen (A) is about one-third of body protein, in connective tissue. Casein (B) is milk, keratin (C) is hair/skin, and hemoglobin (D) is blood.