Nursing Elites

1. What is the name of the bone in the human thigh?

• A. Ulna
• B. Femur
• C. Radius
• D. Humerus

Correct answer: B

Rationale: The correct answer is B. Femur. The femur, also known as the thigh bone, is located in the human thigh. It is the longest and strongest bone in the human body, extending from the hip to the knee. The ulna, radius, and humerus, on the other hand, are bones found in the arm. Therefore, choices A, C, and D are incorrect as they are bones of the arm, not the thigh.

2. Which vitamin is essential for immune system function?

• A. Vitamin A
• B. Vitamin C
• C. Vitamin D
• D. Vitamin K

Correct answer: C

Rationale: Vitamin D is the correct answer. It is essential for immune system function as it helps regulate and support the immune response. Vitamin D plays a crucial role in calcium absorption, which is necessary for maintaining strong and healthy bones. Vitamin A is important for vision and skin health, not specifically immune function. Vitamin C is known for its antioxidant properties and its role in collagen production, not primarily for immune system function. Vitamin K is essential for blood clotting and bone health, but it is not directly related to immune system function.

3. What is the role of the spleen in the immune system?

• A. To filter blood and remove old red blood cells
• B. To produce white blood cells
• C. To store lymphocytes
• D. To produce antibodies

Correct answer: A

Rationale: The spleen plays a crucial role in the immune system by filtering blood, specifically removing old or damaged red blood cells. It also stores lymphocytes, which are white blood cells that help fight infections. While the spleen does not produce white blood cells or antibodies, its main functions lie in blood filtration and storage of immune cells. Therefore, the correct answer is A. Choice B is incorrect because the spleen does not produce white blood cells. Choice C is incorrect as the spleen stores lymphocytes but does not primarily function to do so. Choice D is incorrect because the spleen does not produce antibodies.

4. Which part of the brain is responsible for controlling balance and coordination?

• A. Cerebellum
• B. Cerebrum
• C. Brainstem
• D. Medulla oblongata

Correct answer: A

Rationale: The cerebellum is the correct answer. It is responsible for controlling balance, coordination, and fine motor movements. The cerebrum is mainly associated with higher brain functions such as thinking and decision-making, not specifically balance and coordination. The brainstem is responsible for basic life functions like breathing and heartbeat, while the medulla oblongata is involved in regulating autonomic functions like breathing, heart rate, and blood pressure. Therefore, the cerebellum stands out as the key brain region for maintaining physical control and movement.

5. Which bone does not articulate with any other bone?

• A. Femur
• B. Hyoid
• C. Radius
• D. Scapula

Correct answer: B

Rationale: The hyoid bone is the correct answer as it is the only bone in the human body that does not articulate with any other bone. Instead, it is suspended in the neck by ligaments and muscles, providing support for the tongue and serving as an attachment point for various throat and tongue muscles. The femur (Choice A), radius (Choice C), and scapula (Choice D) all articulate with other bones in the body at various joints, making them incorrect answers for this question.

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