Which type of muscle is responsible for moving the skeleton?
Cardiac muscle
Smooth muscle
Skeletal muscle
Connective tissue
The Correct Answer is C
A. Cardiac muscle: Cardiac muscle is found only in the heart. It contracts involuntarily to pump blood and does not move the skeleton.
B. Smooth muscle: Smooth muscle is located in the walls of internal organs and blood vessels. It controls involuntary movements like peristalsis and vessel constriction, not skeletal movement.
C. Skeletal muscle: Skeletal muscle attaches to bones via tendons and contracts voluntarily to produce movement of the skeleton. It also helps maintain posture and generates heat during activity.
D. Connective tissue: Connective tissue, such as ligaments and tendons, supports and connects structures but does not contract to produce skeletal movement.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Type O-negative: Type O-negative blood lacks A, B, and Rh antigens on the red blood cells, making it compatible with all other blood types for transfusions. It is therefore considered the universal donor for red blood cells.
B. Type B-negative: Type B-negative blood contains B antigens and lacks A antigens, so it cannot be safely transfused to individuals with A or AB blood types.
C. Type AB-positive: Type AB-positive blood has both A and B antigens and the Rh factor, meaning it can receive blood from all types (universal recipient) but is not a universal donor.
D. Type A-positive: Type A-positive blood contains A antigens and the Rh factor. It can only be transfused to individuals with compatible A or AB blood types, not universally.
Correct Answer is A
Explanation
A. Arteries have thicker walls than veins: Arteries have thick, muscular, and elastic walls to withstand high pressure from the heart’s pumping action. This structural feature allows them to maintain blood flow and pressure throughout the circulatory system.
B. Arteries have valves inside them: Arteries generally do not have valves because blood flows under high pressure from the heart. Valves are primarily found in veins to prevent backflow.
C. Veins have thicker walls than arteries: Veins have thinner walls than arteries since they carry blood under lower pressure. Their thinner walls allow veins to expand and accommodate larger volumes of blood.
D. Veins have more elastic tissue than arteries: Arteries contain more elastic tissue to handle pulsatile blood flow. Veins have less elastic tissue and rely on valves and surrounding muscles to help return blood to the heart.
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.