What is the term used to describe pale skin?
cyanosis
hematoma
pallor
bronzing
The Correct Answer is C
Rationale:
A. Cyanosis refers to a bluish discoloration of the skin, typically caused by low oxygen levels in the blood.
B. A hematoma is a localized collection of blood outside blood vessels, appearing as a bruise, not generalized paleness.
C. Pallor is the medical term for paleness of the skin. It can be caused by decreased blood flow, anemia, shock, or illness and is most noticeable in areas such as the face, palms, or mucous membranes.
D. Bronzing refers to a golden-brown skin discoloration, commonly associated with Addison’s disease or certain metabolic conditions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","D","E","F"]
Explanation
Rationale:
A. Bones help buffer blood pH by absorbing or releasing alkaline salts such as calcium phosphate and carbonate.
B. This is primarily regulated by the pancreas (insulin and glucagon), liver, and muscles, not by bone tissue.
C. Bone marrow, especially red marrow, produces red blood cells, white blood cells, and platelets (hematopoiesis).
D. Bones form the rigid framework of the body, supporting soft tissues and protecting vital organs such as the brain, heart, and lungs.
E. Bones act as a reservoir for important minerals like calcium and phosphate, releasing them into the blood when needed.
F. Bones store minerals such as calcium, phosphorus, and magnesium, which are essential for many physiological processes.
Correct Answer is A
Explanation
Rationale:
A. Muscle fiber is the correct term for a single muscle cell. It is multinucleated and contains many myofibrils.
B. Fascicle is a bundle of muscle fibers surrounded by connective tissue (perimysium), not a single cell.
C. Myofibril is a subcellular structure within a muscle fiber made up of repeating sarcomeres; many myofibrils make up one muscle fiber.
D. Myofilament refers to the protein filaments (actin and myosin) within myofibrils that are responsible for contraction, not the entire cell.
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