Which tissue type is specialized for receiving and transmitting nerve impulses, and is found in the brain, spinal cord, and nerves?

Which tissue type is specialized for receiving and transmitting nerve impulses, and is found in the brain, spinal cord, and nerves?

• A. Connective tissue
• B. Nervous tissue
• C. Muscle tissue
• D. Epithelial tissue

Answer: (B)

Nervous tissue is specialized to receive and transmit nerve impulses. It contains neurons, which have dendrites to receive signals, a cell body, and an axon to send impulses, plus supporting glial cells. When a neuron is stimulated, ions cross the membrane to generate an electrical impulse that travels along the axon and communicates across synapses to other neurons, muscles, or glands. This rapid signaling system forms the wiring of the brain, spinal cord, and peripheral nerves, enabling sensation, thought, and coordinated action. Connective tissue provides support and connection throughout the body, not signal transmission. Muscle tissue is built to contract in response to nervous input, acting as the effectors rather than the primary tissue for transmitting impulses. Epithelial tissue forms coverings and linings, protecting surfaces and facilitating exchange, but it isn’t specialized for transmitting nerve impulses.

Nervous tissue is specialized to receive and transmit nerve impulses. It contains neurons, which have dendrites to receive signals, a cell body, and an axon to send impulses, plus supporting glial cells. When a neuron is stimulated, ions cross the membrane to generate an electrical impulse that travels along the axon and communicates across synapses to other neurons, muscles, or glands. This rapid signaling system forms the wiring of the brain, spinal cord, and peripheral nerves, enabling sensation, thought, and coordinated action.

Connective tissue provides support and connection throughout the body, not signal transmission. Muscle tissue is built to contract in response to nervous input, acting as the effectors rather than the primary tissue for transmitting impulses. Epithelial tissue forms coverings and linings, protecting surfaces and facilitating exchange, but it isn’t specialized for transmitting nerve impulses.