Understanding Nervous Tissue Characteristics

The question asks to identify the correct statement regarding nervous tissue.

Analyzing the Options:

• Option 1: Incorrect. Nervous tissue is not primarily composed of muscle fibers; that is the role of muscle tissue, which facilitates movement.
• Option 2: Incorrect. Nervous tissue does not consist of epithelial cells. Epithelial tissue forms coverings and linings and provides protection.
• Option 3: Correct. This statement accurately describes nervous tissue. It is fundamentally composed of specialized cells called neurons, which are responsible for transmitting nerve impulses. Its primary locations are the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves).
• Option 4: Incorrect. Voluntary movement attached to bones is characteristic of skeletal muscle tissue, not nervous tissue.
• Option 5: Invalid. This option is empty.

Key Features of Nervous Tissue

Nervous tissue is unique in its structure and function:

• Cellular Composition: Primarily consists of neurons (nerve cells) and supporting glial cells.
• Function: Neurons transmit electrical and chemical signals (nerve impulses) for communication throughout the body.
• Location: Found throughout the body, concentrated in the brain, spinal cord, and peripheral nerves.

Based on this, the statement that nervous tissue consists of neurons and is found in the brain, spinal cord, and nerves is the correct description.