Understanding Nervous Tissue

What is the primary function of nervous tissue?

• To provide structural support to the body.

• To transmit signals and facilitate communication in the body.

• To store energy and nutrients.

• To facilitate blood circulation.

What are the main components of a neuron?

• Axon, cell membrane, nucleus

• Dendrites, glial cells, myelin

• Cell body, dendrites, axon

• Soma, synapse, neurotransmitter

What is the long part of a neuron called?

• soma

• dendrite

• neurotransmitter

• axon

What are the short, branched parts of a neuron called?

• Dendrites

• Neurotransmitters

• Synapses

• Axons

How long can an individual nerve cell be?

• Up to 10 centimeters, depending on the type of neuron.

• Nerve cells cannot exceed 5 millimeters in length.

• Most nerve cells are only a few micrometers long.

• Up to 1 meter or more, depending on the type of neuron.

What is a nerve impulse?

• A nerve impulse is an electrical signal that travels along a neuron.

• A nerve impulse is a chemical reaction in the brain.

• A nerve impulse is a hormone released by glands.

• A nerve impulse is a type of muscle contraction.

What role do nerve impulses play in muscle movement?

• Nerve impulses have no effect on muscle movement and are unrelated.

• Nerve impulses relax muscles by inhibiting signals from the nervous system.

• Nerve impulses trigger muscle contractions by transmitting signals from the nervous system to muscle fibers.

• Nerve impulses only affect the heart and not skeletal muscles.

What structures are composed of nervous tissue?

• Heart, lungs, and kidneys.

• Brain, spinal cord, and peripheral nerves.

• Skin, muscles, and bones.

• Stomach, liver, and intestines.

What is the functional combination of nerve and muscle tissue essential for?

• Regulating blood pressure and heart rate.

• Facilitating digestion and nutrient absorption.

• Producing hormones and enzymes for metabolism.

• Coordinating movement and responses in the body.

How are nerve fibers organized within a nerve?

• Nerve fibers are organized in a single layer without any protective coverings.

• Nerve fibers are organized into bundles called fascicles, surrounded by endoneurium, perineurium, and epineurium.

• Nerve fibers are randomly distributed without any organization.

• Nerve fibers are grouped into individual strands without any surrounding tissue.