Which option identifies the tissue type that contains a myelin sheath around axons?

Which option identifies the tissue type that contains a myelin sheath around axons?

• A. Cardiac muscle tissue
• B. Nervous tissue
• C. Skeletal muscle tissue
• D. Endomysium

Answer: (B)

Myelin sheath around axons is a feature of nervous tissue, where neurons are insulated by myelin produced by glial cells to speed signal transmission. This insulation, with gaps called Nodes of Ranvier, enables rapid saltatory conduction along axons. Cardiac and skeletal muscle tissues are made for contraction and do not contain axons with myelin, and endomysium is just connective tissue around muscle fibers, not a tissue that contains myelinated axons. So nervous tissue is the correct choice.

Myelin sheath around axons is a feature of nervous tissue, where neurons are insulated by myelin produced by glial cells to speed signal transmission. This insulation, with gaps called Nodes of Ranvier, enables rapid saltatory conduction along axons. Cardiac and skeletal muscle tissues are made for contraction and do not contain axons with myelin, and endomysium is just connective tissue around muscle fibers, not a tissue that contains myelinated axons. So nervous tissue is the correct choice.