Q1: Fill-in-the-Blanks: The are the receiving end of a neuron, while the
conducts nerve impulses away from the cell body.
A: dendrites ; axons
Q2: List the phases of an action potential in order.
A: 1. Resting Potential
2. Depolarization
3. Repolarization
4. Afterpolarization
Q3: T/F. If false, explain why. "The CNS consists of the brain and spinal cord"
A: True
Q4: Match the following:
Cerebrospinal fluid: Cushions the brain and spinal cord by providing buoyancy, allowing
the brain to float
Meninges: connective tissue membranes that protect central nervous system organs
Ventricles: cavities within the brain
Blood Brain Barrier: prevents most particles from entering central nervous system
tissue
Q5: fill on the blanks: matter is composed of a mixture of cell bodies of neurons.
matter is composed of myelinated and unmyelinated nerve
fibers. A: gray ; white
Q6: Describe the function of the parasympathetic nervous system.
A: The parasympathetic system is also sometimes called the housekeeper system
because it promotes all the internal responses associated with a relaxed state.
Parasympathetic stimulation causes the pupil of the eye to constrict and helps the
, lenses of the eye to focus on nearby objects. It promotes digestion through stimulation
of smooth muscles and secretion of digestive glands to assist digestion. The
parasympathetic system also acts to slow the heart rate.
conducts nerve impulses away from the cell body.
A: dendrites ; axons
Q2: List the phases of an action potential in order.
A: 1. Resting Potential
2. Depolarization
3. Repolarization
4. Afterpolarization
Q3: T/F. If false, explain why. "The CNS consists of the brain and spinal cord"
A: True
Q4: Match the following:
Cerebrospinal fluid: Cushions the brain and spinal cord by providing buoyancy, allowing
the brain to float
Meninges: connective tissue membranes that protect central nervous system organs
Ventricles: cavities within the brain
Blood Brain Barrier: prevents most particles from entering central nervous system
tissue
Q5: fill on the blanks: matter is composed of a mixture of cell bodies of neurons.
matter is composed of myelinated and unmyelinated nerve
fibers. A: gray ; white
Q6: Describe the function of the parasympathetic nervous system.
A: The parasympathetic system is also sometimes called the housekeeper system
because it promotes all the internal responses associated with a relaxed state.
Parasympathetic stimulation causes the pupil of the eye to constrict and helps the
, lenses of the eye to focus on nearby objects. It promotes digestion through stimulation
of smooth muscles and secretion of digestive glands to assist digestion. The
parasympathetic system also acts to slow the heart rate.
