Nursing Elites

1. Which type of joint allows for movement in multiple directions?

• A. Hinge joint
• B. Ball and socket joint
• C. Pivot joint
• D. Saddle joint

Correct answer: B

Rationale: The correct answer is a ball and socket joint like the shoulder or hip joint, as it allows for movement in multiple directions, including rotation. This type of joint offers a high degree of mobility due to its structure, where the rounded end of one bone fits into the cup-like socket of another bone. A hinge joint (Choice A) allows movement primarily in one plane, like the elbow or knee. A pivot joint (Choice C) allows for rotation around an axis, seen in the neck joint. A saddle joint (Choice D) enables movements in multiple directions but to a lesser extent compared to a ball and socket joint, found in the thumb joint.

2. How does the skeletal system work with the nervous system?

• A. The bones transmit signals about body position to the brain.
• B. Pain nerves within bones notify the brain of injuries.
• C. The vertebrae of the spine protect the spinal cord.
• D. Bone marrow generates and houses nerve cells.

Correct answer: C

Rationale: The skeletal system collaborates with the nervous system by providing protection and support for critical nervous system components. The vertebrae of the spine play a crucial role in safeguarding the spinal cord, a key component of the nervous system responsible for transmitting messages between the brain and the body. Protecting the spinal cord is essential to prevent neurological complications. Choices A, B, and D are incorrect because while bones do play a role in body position and can sense pain, the primary focus of the skeletal system's interaction with the nervous system is to protect vital components like the spinal cord, rather than generating nerve cells.

3. Why might certain young people be underweight?

• A. They are growing in height faster than they are gaining weight.
• B. They eat little protein and too much fat and sugar.
• C. They eat several meals a day and fail to exercise enough.
• D. They seldom eat a meal that contains foods from all food groups.

Correct answer: A

Rationale: Certain young people might be underweight because they are growing in height faster than they are gaining weight. During periods of rapid growth, the body's energy requirements are primarily directed towards height growth rather than weight gain, resulting in some individuals being underweight despite consuming sufficient calories. Choice B is incorrect because the question focuses on reasons related to growth rather than diet composition. Choice C is incorrect as it suggests overeating rather than the specific growth-related issue of height surpassing weight gain. Choice D is incorrect as it addresses nutritional variety rather than the growth dynamics affecting weight.

4. Which fibrous connective tissue attaches muscles to bones?

• A. Tendons
• B. Ligaments
• C. Cartilage
• D. Fascia

Correct answer: A

Rationale: Tendons are fibrous connective tissues that attach muscles to bones, allowing the transmission of forces generated by muscles and facilitating movement at joints. Ligaments, on the other hand, connect bones to other bones, providing stability. Cartilage is a firm, flexible connective tissue found in joints and the respiratory tract. Fascia surrounds muscles, groups of muscles, blood vessels, and nerves, offering support and protection. Therefore, the correct answer is tendons as they specifically connect muscles to bones.

5. What is a common finding in a whiplash injury?

• A. Cardiopulmonary issues
• B. Side-to-side spinal curvature
• C. Eventual herniation of discs
• D. Traumatic injury to ligaments

Correct answer: D

Rationale: A common finding in a whiplash injury is a traumatic injury to ligaments. Whiplash occurs due to sudden hyperextension and hyperflexion of the neck, leading to strain or tearing of ligaments in the neck. This can manifest as neck pain, stiffness, and limited range of motion. While other complications like cardiopulmonary problems, side-to-side spinal curvature, or eventual herniation of discs are not typically associated with whiplash injuries.

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