Nokea
Which hormone is secreted by the Islets of Langerhans?
- A. Progesterone
- B. Testosterone
- C. Insulin
- D. Hemoglobin
Correct Answer: C
Rationale: Insulin is the hormone secreted by the Islets of Langerhans in the pancreas. These specialized cells are responsible for regulating blood sugar levels by releasing insulin in response to high blood glucose levels. Insulin helps cells absorb glucose from the bloodstream, thereby lowering blood sugar levels.
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Which chamber of the heart receives oxygenated blood from the lungs?
- A. Left atrium
- B. Right atrium
- C. Left ventricle
- D. Right ventricle
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the best description of resonance?
- A. Sounds created by air-filled lungs
- B. Short, high-pitched, and thudding
- C. Moderately loud with a musical quality
- D. Drum-like
Correct Answer: A
Rationale: Resonance refers to the quality of sound produced by vibrations that are reinforced by other vibrations of the same frequency. In the context of the human body, resonance is often associated with sounds produced by air-filled structures like the lungs, vocal cords, and resonating cavities. Therefore, the best description of resonance from the given options is 'Sounds created by air-filled lungs.' This choice aligns with the concept of resonance as it relates to sound production in the human body.
What is a muscular enlarged pouch or sac that lies slightly to the left and is used for the temporary storage of food?
- A. Gallbladder
- B. Urinary bladder
- C. Stomach
- D. Lungs
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the best position for examining the rectum?
- A. Prone
- B. Sim's
- C. Knee-chest
- D. Lithotomy
Correct Answer: C
Rationale: The knee-chest position is the most optimal position for examining the rectum. In this position, the patient kneels on the examination table with their chest resting on it, creating a straight line from the head to the lower back. This position allows for easier access and visualization of the rectal area, making it the preferred choice for rectal examinations.
What is the transparent membrane that focuses the light entering the eyes onto the retina?
- A. Lens
- B. Sclera
- C. Cornea
- D. Pupils
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.