CHAPTER 10 COORDINATION

What are the TWO major divisions of the nervous system?

• A. Central Nervous System and Peripheral Nervous System

• B. Sensory Nervous System and Motor Nervous System

• C. Somatic Nervous System and Autonomic Nervous System

• D. Involuntary Nervous System and Voluntary Nervous System

Another name for Efferent Nerves is

• A. Motor Neuron

• B. Sensory Neuron

• C. Functional Neuron

• D. Interneuron

The heart beating faster during exercise is an example of which portion of the PNS?

• A. Somatic

• B. Sensory

• C. Autonomic

• D. Motor

What is a nerve impulse?

• Your body's reaction to a certain event.

• An electric signal that passes through neurons.

• A message passed through the blood.

• Electrical signal created in the brain.

Branches of a neuron that collect stimuli are called

• A. Myelin sheath

• B. Dendrites

• C. Cell Body

• D. Nodes of Ranvier

What is the insulating axon fibers which increase rate of neural impulse transmission?

• A. Dendrites

• B. Cell Body

• C. Myelin Sheath

• D. Nodes of Ranvier

What is the normal resting potential of a neuron cell membrane?

• +40mV
• -30mV
• +55mV
• -70mV

Which ions are involved in an action potential?

• Na; Cl
• Na; K
• K; Cl
• Na; Ca

The action potential arrives at the ____ and depolarizes the ____ membrane.

• Axon terminal, pre-synaptic

• Axon terminal, post synaptic

• pre-synaptic, axon terminal

• post synaptic, axon terminal

Three main components that maintain resting membrane potential at -70mV are all of these

• sodium - potassium pump

• non - voltage gated sodium channel

• non - voltage gated potassium channel

• non - voltage gated calcium channel channel