NU 545 Unit 2
NU 545 Unit 2 Study Guide
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1. Review the anatomy of the brain. Which portion is responsible for keeping you awake, controlling thought, speech, emotions and behavior, maintaining balance and posture?
- Ch. 15 p. 454 Box 15-3
- Brainstem- midbrain, medulla oblongata, and pons
Reticular Formation-Collection of nuclei within brainstem that maintains wakefulness and works in conjunction with the cerebral cortex and together they are known as the reticular activating system. P. 454
- 3 parts of the brain: forebrain, midbrain, hindbrain
- Expression of affect (emotional and behavioral states) is mediated by extensive connections with the limbic system and prefrontal cortex.
- p. 456 The prefrontal area is responsible for goal oriented behavior (ability to concentrate), short term memory and elaboration of thought and inhibition of the limbic areas
- p. 459 The cerebellum is responsible for conscious and unconscious muscle energy and for maintaining balance and posture.
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2. Know the function of the arachnoid villi.
3. Where is the primary defect in Parkinsons disease and Huntingtons?
- (Pg 459) The inferior most portion of the basal ganglia is the substantia nigra, which synthesizes dopamine, a neurotransmitter and precursor of norepinephrine.
Its dysfunction is associated with Parkinson’s disease. Parkinsons and
Huntington’s are both defects of the basal ganglia. P. 564-565
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4. What is the function of the CSF? Where is it produced? Where is it absorbed? - (Pg 465) Cerebrospinal fluid (CSF) is a clear colorless fluid that floats the spinal
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cord structures and acts as a buoyant property preventing the brain from tugging on the meninges, brain roots and blood vessels. The choroid plexuses produce the major portion of the CSF. CSF is reabsorbed by means of pressure gradient between the arachnoid villi and the cerebral venous sinuses.
5.
-
Review blood flow to the brain.
(Pg 467-468) Review both pages and
!
1. Review the anatomy of the brain. Which portion is responsible for keeping you awake, controlling thought, speech, emotions and behavior, maintaining balance and posture?
- Ch. 15 p. 454 Box 15-3
- Brainstem- midbrain, medulla oblongata, and pons
Reticular Formation-Collection of nuclei within brainstem that maintains wakefulness and works in conjunction with the cerebral cortex and together they are known as the reticular activating system. P. 454
- 3 parts of the brain: forebrain, midbrain, hindbrain
- Expression of affect (emotional and behavioral states) is mediated by extensive connections with the limbic system and prefrontal cortex.
- p. 456 The prefrontal area is responsible for goal oriented behavior (ability to concentrate), short term memory and elaboration of thought and inhibition of the limbic areas
- p. 459 The cerebellum is responsible for conscious and unconscious muscle energy and for maintaining balance and posture.
!
2. Know the function of the arachnoid villi.
3. Where is the primary defect in Parkinsons disease and Huntingtons?
- (Pg 459) The inferior most portion of the basal ganglia is the substantia nigra, which synthesizes dopamine, a neurotransmitter and precursor of norepinephrine.
Its dysfunction is associated with Parkinson’s disease. Parkinsons and
Huntington’s are both defects of the basal ganglia. P. 564-565
!
4. What is the function of the CSF? Where is it produced? Where is it absorbed? - (Pg 465) Cerebrospinal fluid (CSF) is a clear colorless fluid that floats the spinal
!
cord structures and acts as a buoyant property preventing the brain from tugging on the meninges, brain roots and blood vessels. The choroid plexuses produce the major portion of the CSF. CSF is reabsorbed by means of pressure gradient between the arachnoid villi and the cerebral venous sinuses.
5.
-
Review blood flow to the brain.
(Pg 467-468) Review both pages and