Sarcomere Structure and Muscle Regions — NEET Biology
📚 Practice ConceptDraw the diagram of a sarcomere of skeletal muscle showing different regions.
Which of the following statements regarding different types of muscles are NOT correct? S1: Skeletal muscles possess a striped appearance under the microscope and are under the voluntary control of the nervous system. S2: Visceral muscles are characterized by a smooth appearance, lacking striations, and function involuntarily in hollow internal organs. S3: Cardiac muscle cells are typically unbranched, but like skeletal muscles, their activities are directly controlled by the central nervous system. S4: Each muscle fibre of skeletal muscle is described as a syncytium due to the presence of multiple nuclei within its sarcoplasm. S5: Cardiac muscles exhibit striations and a branching pattern, yet they are involuntary in nature.
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