Exam 4 | Chapter 12, 13, 14, 15 |
BSC2093C Final Test Questions Fully
Solved.
reflex center - Answer located in the spinal cord and brain; sensations are inputted and
motor reactions are outputted
Brain Development - Answer Brain development is influenced by space restriction of the
skull.
Brain grows faster, and most form folds.
Organization of Gray and White Matter - Answer In the CNS:
-Central cavity w/gray and external white matter
-Cerebrum and cerebellum have exterior gray matter (cortex)
-Internal gray islands of nuclei
gray matter - Answer -Short nonmyelinated neurons; medial in spinal cord; contains sensory
and motor nuclei that receive and relay sensory information and issue motor commands to
effectors; nuclei and commissures
Brain Regions - Answer cerebrum, diencephalon, brain stem, cerebellum
Cerebral Hemispheres - Answer two halves of the cerebral cortex, each of which serve
distinct yet highly integrated functions
Cerebral Lobes - Answer frontal, parietal, occipital, temporal, insula
Frontal Lobe - Answer The cerebral lobe at the front of the brain associated with movement,
speech, and impulsive behavior.
Parietal Lobe - Answer portion of the cerebral cortex lying at the top of the head and toward
the rear; receives sensory input for touch and body position
Occipital Lobe - Answer A region of the cerebral cortex that processes visual information
Temporal Lobe - Answer A region of the cerebral cortex responsible for hearing and
language.
,Insula Lobe - Answer Deep within lateral sulcus, associated with visceral functions
Cerebrum Regions - Answer cortex, white matter, basal nuclei
Cerebral Cortex - Answer superficial region of the cerebrum
-Thin (2-4 mm) superficial layer of gray matter
-40% of the mass of the brain
-Site of conscious mind: awareness, sensory perception, motor initiation, communication,
memory storage, understanding
-Each hemisphere connects to contralateral side of the body.
Cerebral Cortex Functional Areas - Answer motor areas, sensory areas, association areas
Motor Areas - Answer (functional area of cerebral cortex)
Control voluntary movement
-primary motor cortex
-premotor cortex
-Broca's area
-frontal eye field
Sensory Areas - Answer (functional area of cerebral cortex)
Conscious awareness of sensation.
Association Areas - Answer (functional area of cerebral cortex)
integrate diverse information.
Cerebral White Matter - Answer 2nd region of the cerebrum (between superficial and basal)
responsible for communication between cerebral areas and the cerebral cortex and lower CNS
centers
, Commissural Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
connect corresponding gray areas of the two hemispheres
Association Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
connect different parts of the same hemisphere
Projection Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
vertical fibers that connect hemispheres with lower brain or spinal cord
Basal Nuclei - Answer Third, most basal region of the cerebrum
Subcortical Nuclei
Subcortical Nuclei (basal nuclei) - Answer Functions include the following:
-Influence muscular control
-help regulate attention and cognition
-regulate intensity of slow or stereotyped movements
-inhibit antagonistic and unnecessary movements
Parkinson's Disease - Answer A disorder of the central nervous system that affects
movement, often including tremors.
-Relates to subcortical (basal) nuclei.
Diencephalon - Answer 2nd of 4 brain regions.
Contains:
1) Thalamus
2) hypothalamus
3) epithalamus (pineal gland)
BSC2093C Final Test Questions Fully
Solved.
reflex center - Answer located in the spinal cord and brain; sensations are inputted and
motor reactions are outputted
Brain Development - Answer Brain development is influenced by space restriction of the
skull.
Brain grows faster, and most form folds.
Organization of Gray and White Matter - Answer In the CNS:
-Central cavity w/gray and external white matter
-Cerebrum and cerebellum have exterior gray matter (cortex)
-Internal gray islands of nuclei
gray matter - Answer -Short nonmyelinated neurons; medial in spinal cord; contains sensory
and motor nuclei that receive and relay sensory information and issue motor commands to
effectors; nuclei and commissures
Brain Regions - Answer cerebrum, diencephalon, brain stem, cerebellum
Cerebral Hemispheres - Answer two halves of the cerebral cortex, each of which serve
distinct yet highly integrated functions
Cerebral Lobes - Answer frontal, parietal, occipital, temporal, insula
Frontal Lobe - Answer The cerebral lobe at the front of the brain associated with movement,
speech, and impulsive behavior.
Parietal Lobe - Answer portion of the cerebral cortex lying at the top of the head and toward
the rear; receives sensory input for touch and body position
Occipital Lobe - Answer A region of the cerebral cortex that processes visual information
Temporal Lobe - Answer A region of the cerebral cortex responsible for hearing and
language.
,Insula Lobe - Answer Deep within lateral sulcus, associated with visceral functions
Cerebrum Regions - Answer cortex, white matter, basal nuclei
Cerebral Cortex - Answer superficial region of the cerebrum
-Thin (2-4 mm) superficial layer of gray matter
-40% of the mass of the brain
-Site of conscious mind: awareness, sensory perception, motor initiation, communication,
memory storage, understanding
-Each hemisphere connects to contralateral side of the body.
Cerebral Cortex Functional Areas - Answer motor areas, sensory areas, association areas
Motor Areas - Answer (functional area of cerebral cortex)
Control voluntary movement
-primary motor cortex
-premotor cortex
-Broca's area
-frontal eye field
Sensory Areas - Answer (functional area of cerebral cortex)
Conscious awareness of sensation.
Association Areas - Answer (functional area of cerebral cortex)
integrate diverse information.
Cerebral White Matter - Answer 2nd region of the cerebrum (between superficial and basal)
responsible for communication between cerebral areas and the cerebral cortex and lower CNS
centers
, Commissural Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
connect corresponding gray areas of the two hemispheres
Association Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
connect different parts of the same hemisphere
Projection Fibers - Answer Part of cerebral white matter, which is itself a region of the
cerebrum.
vertical fibers that connect hemispheres with lower brain or spinal cord
Basal Nuclei - Answer Third, most basal region of the cerebrum
Subcortical Nuclei
Subcortical Nuclei (basal nuclei) - Answer Functions include the following:
-Influence muscular control
-help regulate attention and cognition
-regulate intensity of slow or stereotyped movements
-inhibit antagonistic and unnecessary movements
Parkinson's Disease - Answer A disorder of the central nervous system that affects
movement, often including tremors.
-Relates to subcortical (basal) nuclei.
Diencephalon - Answer 2nd of 4 brain regions.
Contains:
1) Thalamus
2) hypothalamus
3) epithalamus (pineal gland)
