Choose the best answer

1			_________________ nerves carry impulses away from the central nervous system. Need a Hint?
			A)	Sensory
			B)	Motor
			C)	Afferent
			D)	Association
2			Which of the following best describes the electrical state of a neuron at rest? Need a Hint?
			A)	The inside of a neuron is more negatively charged than the outside.
			B)	The outside of a neuron is more negatively charged than the inside.
			C)	The inside and the outside of a neuron have the same electrical charge.
			D)	K+ ions leak into a neuron at rest.
3			A nerve impulse is initiated when Need a Hint?
			A)	physical disruption of the cell membrane causes some of its contents, including ions, to leak out.
			B)	the Schwann cells move to into their new positions.
			C)	voltage-gated channels close.
			D)	a reversal in the polarized state of the cell causes it to reach threshold.
4			An action potential travels from one neuron to the next across the synapse using Need a Hint?
			A)	calcium ions.
			B)	Schwann cells.
			C)	neurotransmitters.
			D)	All of these are involved.
5			Synapses are excitatory or inhibitory based on Need a Hint?
			A)	integration.
			B)	summation.
			C)	autonomic control.
			D)	saltatory conduction.
6			Modern-day fish are like early vertebrates in that the dominate part of their brains is the Need a Hint?
			A)	forebrain.
			B)	midbrain.
			C)	hindbrain.
			D)	optic lobes.
7			Much of the sensory, motor, and associative neural activity of the cerebrum occurs on the surface, a layer called the Need a Hint?
			A)	corpus callosum.
			B)	cerebral cortex.
			C)	limbic system.
			D)	basal ganglia.
8			Which is not involved in the knee-jerk reflex? Need a Hint?
			A)	stretching of the muscle
			B)	motor neuron
			C)	muscle spindle
			D)	an interneuron
9			The _____________ cannot be controlled by conscious thought. Need a Hint?
			A)	motor neurons
			B)	somatic nervous system
			C)	autonomic nervous system
			D)	skeletal muscles
10			A fight-or-flight response in the body is controlled by the Need a Hint?
			A)	sympathetic division of the nervous system.
			B)	parasympathetic division of the nervous system.
			C)	release of ACh from postganglionic neurons.
			D)	somatic nervous system.