Introduction to the Nervous System

What is the main function of the nervous system?

• Digest food.

• Regulate body temperature.

• Produce hormones.

• Transmit signals and control bodily functions.

What are the two main divisions of the nervous system?

• autonomic nervous system and somatic nervous system

• sympathetic nervous system and parasympathetic nervous system

• motor nervous system and sensory nervous system

• central nervous system and peripheral nervous system

What are the basic units of the nervous system?

• neurons

• tissues

• organs

• cells

What is the role of neurons in the nervous system?

• Neurons produce hormones in the nervous system.

• Neurons store memories in the nervous system.

• Neurons regulate blood flow in the nervous system.

• Neurons transmit and process information in the nervous system.

What is the difference between the central nervous system and the peripheral nervous system?

• The central nervous system includes all the nerves outside of the brain and spinal cord, while the peripheral nervous system consists of the brain and spinal cord.

• The central nervous system consists of the spinal cord and peripheral nerves, while the peripheral nervous system includes the brain.

• The central nervous system consists of the brain and spinal cord, while the peripheral nervous system includes all the nerves outside of the central nervous system.

• The central nervous system and the peripheral nervous system are the same and can be used interchangeably.

What are the three main parts of a neuron?

• nucleus, cytoplasm, cell membrane

• axon terminal, neurotransmitter, synaptic cleft

• soma, synapse, myelin sheath

• cell body, dendrites, axon

What is the function of the brain in the nervous system?

• The function of the brain in the nervous system is to pump blood.

• The function of the brain in the nervous system is to digest food.

• The function of the brain in the nervous system is to control and coordinate body functions.

• The function of the brain in the nervous system is to produce thoughts and emotions.

What is the function of the spinal cord in the nervous system?

• Filter blood

• Control muscle movements

• Transmit signals between the brain and the rest of the body

• Produce hormones

What are the three types of neurons?

• sensory neurons, motor neurons, and interneurons

• afferent neurons, efferent neurons, and relay neurons

• brain neurons, spinal neurons, and nerve neurons

• sensory neurons, motor neurons, and interneurons

What is the purpose of the myelin sheath?

• The purpose of the myelin sheath is to prevent electrical impulses from traveling along the nerve cells.

• The purpose of the myelin sheath is to provide nutrients to nerve fibers.

• The purpose of the myelin sheath is to regulate the body's temperature.

• The purpose of the myelin sheath is to insulate and protect nerve fibers, as well as to increase the speed of electrical impulses along the nerve cells.