Muscle tissue is best described as:
Excitable, contractile
Rigid and inflexible
Forms nerves
Non-excitable, non-contractile
The Correct Answer is A
A. Excitable, contractile: Muscle tissue can respond to stimulation (excitable) and generate force by shortening (contractile).
B. Rigid and inflexible: Muscle tissue is designed to contract and relax, not to be rigid and inflexible.
C. Forms nerves: Nerves are formed by nervous tissue, not muscle.
D. Non-excitable, non-contractile: This describes tissues that do not respond electrically or contract; it does not describe muscle.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Mutation: A change in the DNA sequence of a gene, not the regulated process of cell death.
B. Cell migration: Movement of cells from one location to another during development or repair, not a form of programmed death.
C. Cell division: The process by which a cell replicates and splits (mitosis/cytokinesis), the opposite of cell elimination.
D. Programmed cell death: Apoptosis is an orderly, regulated process involving caspases, cell shrinkage, membrane blebbing, and DNA fragmentation that eliminates cells without provoking inflammation.
Correct Answer is A
Explanation
A. Standing, facing forward, arms at sides, palms forward: The anatomical position is the standard reference posture: standing erect, facing forward, arms at sides with palms facing anteriorly.
B. Lying face down: This is the prone position, not the anatomical position.
C. Sitting with arms crossed: This is a nonstandard posture and not used as the anatomical reference.
D. Sitting with palms backward: Anatomical position specifies standing and palms facing forward, not sitting with palms backward.
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