Bio 253 quiz 3 UPDATED ACTUAL Exam
Questions and CORRECT Answers
Central Nurvous System - CORRECT ANSWER - brain and spinal cord
peripheral nervous system - CORRECT ANSWER - cranial and spinal nerves
Astrocytes - CORRECT ANSWER - Carry blood & nutrients, nutrients & oxygen to the
cells of the central nervous system
Deploralization - CORRECT ANSWER - Sodium channels open and sodium rushes into
cell
reploralization - CORRECT ANSWER - Potassium channels open and potassium move
out of the cell
Neurotransmitters - CORRECT ANSWER - Act by binding to receptors on the cell
membrane
Unipolar neurons - CORRECT ANSWER - mostly sensory neurons
Multipolar neurons - CORRECT ANSWER - most common, mostly motor
Bipolar neurons - CORRECT ANSWER - very rare
sensory cranial nerves - CORRECT ANSWER - Olfactory (I) 1
Optic (II) 2
Vestibulocochlear (VIII) 8
Questions and CORRECT Answers
Central Nurvous System - CORRECT ANSWER - brain and spinal cord
peripheral nervous system - CORRECT ANSWER - cranial and spinal nerves
Astrocytes - CORRECT ANSWER - Carry blood & nutrients, nutrients & oxygen to the
cells of the central nervous system
Deploralization - CORRECT ANSWER - Sodium channels open and sodium rushes into
cell
reploralization - CORRECT ANSWER - Potassium channels open and potassium move
out of the cell
Neurotransmitters - CORRECT ANSWER - Act by binding to receptors on the cell
membrane
Unipolar neurons - CORRECT ANSWER - mostly sensory neurons
Multipolar neurons - CORRECT ANSWER - most common, mostly motor
Bipolar neurons - CORRECT ANSWER - very rare
sensory cranial nerves - CORRECT ANSWER - Olfactory (I) 1
Optic (II) 2
Vestibulocochlear (VIII) 8
