NU 545 UNIT 2 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED.
1. What nerves are capable of regeneration?
PNS(peripheral nervous system) axons readily regenerate by a process called axonal reaction
Brain portion responsible for keeping you awake
The Reticular Activating System (RAS) is a bundle of nerves that sits in your brainstem. And its job is to
regulate behavior, arousal, consciousness and motivation.
Brain portion responsible for controlling thought
Your prefrontal cortex(F) is in charge of "executive functions," such as thinking and problem-solving/
Short-term or recall memory/ inhibition on the limbic(emotional) areas of the CNS
Brain portion responsible for speech
Broca speech area(F)Motor aspects of speech (usually on left hemisphere);Damage to this area (ex. CVA)
results in inability to form words, called expressive aphasia or dysphasia.
Wericke area (F)Reception and interpretation of speech (superior temporal gyrus)
Damage to this area results in difficulty understanding words or written language, called receptive
aphasia or dysphasia.
Brain portion responsible for emotions and behavior
, Limbic system(F) & the amygdala integrates emotions, emotional behavior, and motivation.
Hypothalams(F)-regulate emotional expression/behavorial patterns
Brain portion responsible for balance & posture
Cerebellum (F)-Damage to the cerebellum is characterized by ipsilateral (same side) loss of equilibrium,
balance, and motor coordination
What part of the brain must be functioning for cognitive operations?
prefrontal cortex for higher-level cognitive functioning; Broca's area for language production. Reticular
activating system for maintaining wakefulness.
Which part of the brain controls movement of the eye?
lower portion of Brodmann area
8 is involved in controlling frontal eye field movements-part of the frontal cerebral cortex.
Superior colliculi(M) allow eyes to track moving objects in the visual field.
Types of mid-brain dysfunction and its physical symptoms.
Dysfunction of dopaminergic neurons in the substantia nigra is associated with Parkinson disease and
schizophrenia. Obstruction of cerebral aqueduct(carries CSF through 3/4 ventricle) is a common cause of
hydrocephalus.
Substantia nigra(M)
synthesizes dopamine
Function of CSF
Protect brain and spinal cord from trauma. Supply nutrients to nervous system tissue. Remove waste
products from cerebral metabolism.
WITH COMPLETE SOLUTIONS VERIFIED.
1. What nerves are capable of regeneration?
PNS(peripheral nervous system) axons readily regenerate by a process called axonal reaction
Brain portion responsible for keeping you awake
The Reticular Activating System (RAS) is a bundle of nerves that sits in your brainstem. And its job is to
regulate behavior, arousal, consciousness and motivation.
Brain portion responsible for controlling thought
Your prefrontal cortex(F) is in charge of "executive functions," such as thinking and problem-solving/
Short-term or recall memory/ inhibition on the limbic(emotional) areas of the CNS
Brain portion responsible for speech
Broca speech area(F)Motor aspects of speech (usually on left hemisphere);Damage to this area (ex. CVA)
results in inability to form words, called expressive aphasia or dysphasia.
Wericke area (F)Reception and interpretation of speech (superior temporal gyrus)
Damage to this area results in difficulty understanding words or written language, called receptive
aphasia or dysphasia.
Brain portion responsible for emotions and behavior
, Limbic system(F) & the amygdala integrates emotions, emotional behavior, and motivation.
Hypothalams(F)-regulate emotional expression/behavorial patterns
Brain portion responsible for balance & posture
Cerebellum (F)-Damage to the cerebellum is characterized by ipsilateral (same side) loss of equilibrium,
balance, and motor coordination
What part of the brain must be functioning for cognitive operations?
prefrontal cortex for higher-level cognitive functioning; Broca's area for language production. Reticular
activating system for maintaining wakefulness.
Which part of the brain controls movement of the eye?
lower portion of Brodmann area
8 is involved in controlling frontal eye field movements-part of the frontal cerebral cortex.
Superior colliculi(M) allow eyes to track moving objects in the visual field.
Types of mid-brain dysfunction and its physical symptoms.
Dysfunction of dopaminergic neurons in the substantia nigra is associated with Parkinson disease and
schizophrenia. Obstruction of cerebral aqueduct(carries CSF through 3/4 ventricle) is a common cause of
hydrocephalus.
Substantia nigra(M)
synthesizes dopamine
Function of CSF
Protect brain and spinal cord from trauma. Supply nutrients to nervous system tissue. Remove waste
products from cerebral metabolism.
