Nervous System

What is the sending portion of a neuron?

• Axon

• Dendrite

• Nucleus

• Terminal branches

In what order does an impulse travel through parts of a neuron?

• Axon →synapse → dendrite → cell body
• Cell body → dendrite → axon → synapse
• Dendrite → axon → cell body → synapse
• Synapse → cell body → dendrite → axon

If a neuron were to lose its myelin sheath, what MOST LIKELY would happen?

• The nerve impulse would not be able to cross the synapse
• The nerve impulse would slow down across the axon
• The person would have seizures
• There would be no blood supply to the neuron

What is the MAIN function of a nerve?

• Protection
• Sensation
• To carry messages
• To produce neurons

The peripheral nervous system contains the:

• brain
• cranial nerves
• meninges
• spinal cord

A man was hit in the head and now has difficulty walking and maintaining his balance. What part of the brain MOST LIKELY was affected?

• Cerebellum
• Cerebrum
• Midbrain
• Pons

The frontal and parietal lobes can be found in the:

• cerebellum
• cerebrum
• midbrain
• pons

What part of the brain connects with the spinal cord?

• Cerebrum
• Cerebellum
• Pituitary gland
• Medulla oblongata

What part of the brain is MOST like a blanket?

• Cerebrum
• Meninges
• Pons
• Ventricles

If a needle were inserted into a ventricle in the brain, what would MOST LIKELY be withdrawn?

• Air
• Blood
• Cerebrospinal fluid
• Nerve tissue