What movement decreases the angle between bones at a joint, often bending a limb?
Flexion
extension
adduction
abduction
The Correct Answer is A
Rationale:
A. Flexion is a movement that decreases the angle between two bones at a joint. It often involves bending a limb, such as bending the elbow or knee, or moving the chin toward the chest at the neck. Flexion brings body parts closer together and is a fundamental movement in many joints.
B. The opposite of flexion, extension increases the angle between two bones, straightening a joint. For example, straightening the elbow after it has been bent is extension.
C. This is the movement of a body part toward the midline of the body, such as bringing the arm down to the side from a raised position. It does not specifically decrease the angle at a joint.
D. This is the movement of a body part away from the midline, such as lifting the arm or leg out to the side. Like adduction, it is not about decreasing the angle at a joint.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
A. Refers to paleness of the skin, often caused by decreased blood flow, anemia, or shock. It is not redness.
B. Refers to a yellow discoloration of the skin and eyes, typically caused by liver disease or bile duct obstruction.
C. Refers to a bluish tint of the skin due to low oxygen levels in the blood.
D. Erythema describes abnormal redness of the skin caused by increased blood flow to the capillaries in the dermis, which may occur with inflammation, infection, fever, sunburn, or allergic reactions.
Correct Answer is A
Explanation
Rationale:
A. The dermis lies beneath the epidermis and contains blood vessels, lymphatic vessels, nerves, sweat glands, sebaceous glands, and hair follicles. The blood vessels in the dermis play a key role in regulating body temperature and nourishing both the dermis itself and the avascular epidermis above it.
B. Also called the hypodermis, this layer lies below the dermis and is composed mainly of fat and connective tissue. While it provides insulation, cushioning, and energy storage, the question specifically asks for the skin layer containing blood vessels, which is the dermis.
C. The epidermis is the outermost skin layer. It is avascular, meaning it contains no blood vessels. It relies on diffusion from the dermis for nutrient and waste exchange.
D. Another name for the subcutaneous layer. Although it contains larger blood vessels that supply the dermis, it is technically not considered part of the skin itself.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.