Biology Level 3 Revision

The nerve cell that carries impulses from a sense receptor to the brain or spinal cord is a _____________.

• Motor Neuron
• Sensory Neuron
• Relay Neuron

Which division of the nervous system is responsible for monitoring the internal and external environment?

• Sensory/afferent

• Somatic

• Autonomic

• Motor/efferent

What is the structure labeled letter B?

• Axon

• Axon hillock

• Dendrite

• Cell body

What is the funciton of the motor/efferent division of the nervous system?

• Integrate sensory info

• Send sensory data to the central nervous system

• Determine a response

• Carry out or activates the response

Name the structure labeled letter H

• Axon

• Dendrite

• Schwann cells

• Axon terminal

Structure of a neuron that transmits the action potential away from the cell body

• Axon

• Dendrite

• Myelin sheath

• Axon terminal

The gaps in the myelin sheath along an axon

• Neurilemma

• Dendrites

• Synaptic cleft

• Nodes of Ranvier

Structure labeled letter G

• Neurilemma

• Axons

• Myelin sheath

• Nissl body

Check all that apply to the peripheral nervous system

• Contains the brain and spinal cord

• Integrates and interprets sensory information

• Contains a sensory and motor division

• Comprised of all nerves outside the brain and spinal cord

These cells myelinate axons ot the peripheral nervous system

• Satellite cells

• Schwann cells

• Neurons

• Oligodendrocytes