NEET BIOLOGY

Detailed explanation-1: -Answer and Explanation: The correct answer: The type of muscle tissue that is not striated is a) Smooth muscle tissue. Smooth muscle tissues are formed around the linings of the different organs of the body and the smooth muscle is considered smooth because there are no striations in the muscle.

Detailed explanation-2: -Smooth muscle cells are spindle shaped, have a single, centrally located nucleus, and lack striations. They are called involuntary muscles.

Detailed explanation-3: -At a cellular level, smooth muscle functions as an involuntary non-striated muscle. Smooth muscle contains thick and thin filaments that do not arrange into sarcomeres, resulting in a non-striated pattern.

Detailed explanation-4: -At a cellular level, smooth muscle can be described as an involuntary, non-striated muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern. On microscopic examination, it will appear homogenous.

Detailed explanation-5: -The smooth muscle consists of long, narrow unbranched spindle-shaped fibres. Each fibre contains a single oval nucleus in its thick middle part. The cross-striations are absent so that the fibres look smooth, hence the name unstriated.