NU551 UNIT 3 EXAM
QUESTIONS AND ANSWERS,
3 Functional Classifications of Neurons - CORRECT ANSWER✅✅Sensory - carry
impulses from peripheral sensor receptors to CNS
Associational - transmit impulses from neuron to neuron
Motor - transmit pulses away from the CNS to an effector
3 parts of a neuron - CORRECT ANSWER✅✅cell body, dendrites, axon
3 Protective Membranes of the Brain - CORRECT ANSWER✅✅Dura mater
Arachnoid
Pia Mater
(Meninges)
ANS Separated Into Two Divisions - CORRECT ANSWER✅✅Sympathetic Nervous
System
Parasympathetic Nervous System
Autonomic Nervous System - CORRECT ANSWER✅✅Regulation of the body's
internal environment (viscera) through involuntary control of organs
Further divided into sympathetic and parasympathetic
Axon Hillock - CORRECT ANSWER✅✅Cone shaped region of an axon where it joins
the cell body.
Axons - CORRECT ANSWER✅✅long conductive projections that carry nerve impulses
away from the cell body
Basal Ganglia - CORRECT ANSWER✅✅Nuclei of the basal ganglia are important for
voluntary movement and cognitive and emotional functions (pleasure and reward
functions)
Bipolar Neurons - CORRECT ANSWER✅✅Two processes, one axon and one dendrite
EX connects rod and cone cells of retina
Brainstem - CORRECT ANSWER✅✅Midbrain, medulla, and pons - connect the
hemispheres of the brain, cerebellum, and spinal cord
Categories of TBI - CORRECT ANSWER✅✅Mild TBI
, No or short loss of consciousness
•Confusion for several minutes, retrograde amnesia
Moderate TBI (moderate concussion)
•Loss of consciousness 30 minutes to 6 hours
•Confusion with amnesia longer than 24 hours
Severe TBI (severe concussion)
•Loss of consciousness longer than 6 hours
•Severe cognitive system defects
Causes of Alterations in Vision - CORRECT ANSWER✅✅Disorders of the eyelids and
optic globe (conjunctiva, cornea, and uvea)
Intraocular pressure (glaucoma)
Lens (cataract)
The vitreous humor and retinas
Dual pathways and the visual cortex
Extraocular muscles and eye movement
Cell Body - CORRECT ANSWER✅✅•Mostly located in the CNS
•Cell bodies in the PNS are found in groups called ganglia
Central Causes of Vertigo - CORRECT ANSWER✅✅Abnormal nystagmus and vertigo
can occur as a result of CNS lesions involving the cerebellum and lower brain stem.
Brain stem ischemia.
Tumors.
Multiple sclerosis.
Central Nervous System - CORRECT ANSWER✅✅Consists of the brain and spinal
cord, enclosed within protective cranial vault and vertebrae
Cerebellum composed of? - CORRECT ANSWER✅✅Gray matter and white matter
Cerebellum is responsible for - CORRECT ANSWER✅✅Reflexive, involuntary fine-
tuning of motor control and for maintaining balance and posture through extensive
neural connections with the medulla and with the midbrain
Cerebrovascular Disease - CORRECT ANSWER✅✅Most frequently occurring
neurologic disorder and is any abnormality of the brain caused by a pathologic process
in the blood vessels
QUESTIONS AND ANSWERS,
3 Functional Classifications of Neurons - CORRECT ANSWER✅✅Sensory - carry
impulses from peripheral sensor receptors to CNS
Associational - transmit impulses from neuron to neuron
Motor - transmit pulses away from the CNS to an effector
3 parts of a neuron - CORRECT ANSWER✅✅cell body, dendrites, axon
3 Protective Membranes of the Brain - CORRECT ANSWER✅✅Dura mater
Arachnoid
Pia Mater
(Meninges)
ANS Separated Into Two Divisions - CORRECT ANSWER✅✅Sympathetic Nervous
System
Parasympathetic Nervous System
Autonomic Nervous System - CORRECT ANSWER✅✅Regulation of the body's
internal environment (viscera) through involuntary control of organs
Further divided into sympathetic and parasympathetic
Axon Hillock - CORRECT ANSWER✅✅Cone shaped region of an axon where it joins
the cell body.
Axons - CORRECT ANSWER✅✅long conductive projections that carry nerve impulses
away from the cell body
Basal Ganglia - CORRECT ANSWER✅✅Nuclei of the basal ganglia are important for
voluntary movement and cognitive and emotional functions (pleasure and reward
functions)
Bipolar Neurons - CORRECT ANSWER✅✅Two processes, one axon and one dendrite
EX connects rod and cone cells of retina
Brainstem - CORRECT ANSWER✅✅Midbrain, medulla, and pons - connect the
hemispheres of the brain, cerebellum, and spinal cord
Categories of TBI - CORRECT ANSWER✅✅Mild TBI
, No or short loss of consciousness
•Confusion for several minutes, retrograde amnesia
Moderate TBI (moderate concussion)
•Loss of consciousness 30 minutes to 6 hours
•Confusion with amnesia longer than 24 hours
Severe TBI (severe concussion)
•Loss of consciousness longer than 6 hours
•Severe cognitive system defects
Causes of Alterations in Vision - CORRECT ANSWER✅✅Disorders of the eyelids and
optic globe (conjunctiva, cornea, and uvea)
Intraocular pressure (glaucoma)
Lens (cataract)
The vitreous humor and retinas
Dual pathways and the visual cortex
Extraocular muscles and eye movement
Cell Body - CORRECT ANSWER✅✅•Mostly located in the CNS
•Cell bodies in the PNS are found in groups called ganglia
Central Causes of Vertigo - CORRECT ANSWER✅✅Abnormal nystagmus and vertigo
can occur as a result of CNS lesions involving the cerebellum and lower brain stem.
Brain stem ischemia.
Tumors.
Multiple sclerosis.
Central Nervous System - CORRECT ANSWER✅✅Consists of the brain and spinal
cord, enclosed within protective cranial vault and vertebrae
Cerebellum composed of? - CORRECT ANSWER✅✅Gray matter and white matter
Cerebellum is responsible for - CORRECT ANSWER✅✅Reflexive, involuntary fine-
tuning of motor control and for maintaining balance and posture through extensive
neural connections with the medulla and with the midbrain
Cerebrovascular Disease - CORRECT ANSWER✅✅Most frequently occurring
neurologic disorder and is any abnormality of the brain caused by a pathologic process
in the blood vessels
