AP: Ch 8- Nervous: Spinal Cord

What are the two types of nervous tissue cells? (select all that apply)

• osteocytes

• neurons

• chondrocytes

• neuroglia

• nephrons

Which of the following structures make up the central nervous system? (select all that apply)

• spinal cord

• spinal nerves

• cranial nerves

• brain

Which of the following structures make up the peripheral nervous system? (select all that apply)

• brain

• spinal nerves

• spinal cord

• cranial nerves

A ________ is a chemical that transfers a signal across a synapse.

• actin

• ATP

• neurotransmitter

• neuroglia

A __________ nerve is one that contains both sensory and motor fibers.

• afferent

• efferent

• mixed

• visceral

Injury to the _________ nerve would lead to cessation in breathing.

• median

• sciatic

• phrenic

• lumbosacral

Which of the following statements best describes myelin?

• transmits information for pain

• facilitates in nerve impulse conduction

• relays information that originates form the precentral gyrus

• contains both sensory and motor fibers

Injury to the sciatic nerve can be caused by:

• excessive voiding

• hyperventilation

• bearing weight on crutches

• prolonged sitting

Which of the following best describes axons?

• carries impulses toward the neuron cell body

• carries impulses away from the neuron cell body

• carries impulses away from the neuroglia cell body

• carries impulses toward the neuroglia cell body

Which of the following best describes a dendrite

• carries impulses toward the neuron's cell body

• carries impulses away from the neuron's cell body

• carries impulses toward the neuroglia's cell body

• carries impulses away from the neuroglia's cell body