Nervous System Practice

Cells in the nervous system that function to protect, nourish and insulate are called _______.

• neuroglial cells

• dendrites

• neurons

• cell bodies

• axons

Tags

NGSS.MS-LS1-3

Which of the following are parts of neurons?

• dura mater, pia mater and arachnoid membrane

• dendrites, axon, and cell body

• sensory axons and motor dendrites

• dendrites, medulla and myelin sheath

Long nerve fibers that carry electrical impulses away from the cell body to other nerve cells is/are called _______.

• axons

• dendrites

• myelin sheaths

• Nodes of Ranvier

The part of the neuron that receives incoming electrical signals from other neurons is/are called ________.

• axons

• dendrites

• cell body

• myelin sheaths

What are the two main divisions of the nervous system?

• Central and Peripheral Nervous Systems

• Autonomic and Somatic Nervous Systems

• Sympathetic and Parasympathetic Nervous Systems

• Sensory and Motor Nervous Systems

During a biology class, Olivia asked, "What are the two main divisions of the nervous system?"

• Central and Peripheral Nervous Systems

• Autonomic and Somatic Nervous Systems

• Sympathetic and Parasympathetic Nervous Systems

• Sensory and Motor Nervous Systems

Answer explanation

The two main divisions of the nervous system are the Central Nervous System (CNS), which includes the brain and spinal cord, and the Peripheral Nervous System (PNS), which connects the CNS to the rest of the body.

Click on the parts of the peripheral nervous system

The gap that a neurotransmitter chemical has to cross to get from one neuron to another neuron is called the _____.

• myelin sheath

• dendrite

• axon

• synaptic cleft

A chemical messenger molecule that transmits nerve impulses across a gap between two neurons called is called a/an _______. (ex. Serotonin, dopamine, etc)

• ion

• neurotransmitter

• myelin sheath

• action potential

Tags

NGSS.HS-LS2-3

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ________.

• arachnoid villi

• meninges

• ventricles

• diencephalon