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The Nervous System
Lab questions about the Central nervous system, and general question about the nervous system.
50
Anatomy
Undergraduate 2
11/27/2011

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Term
Nervous System
Definition
The master controlling and communication system of the body
Term
Sensory Input
Definition
monitoring stimuli occurring inside and outside the body
Term
Integration
Definition
Interpreting of sensory input
Term
Motor Output
Definition
response to stimuli by activating effector organs
Term
Central Nervous System
Definition
Brain and Spinal cord
Integration and command center
Term
Peripheral Nervous System
Definition
paired spinal and cranial nerves
carries messages to and from the spinal cord and brain
Term
THREE PRIMARY BRAIN VESICLES
Definition
Prosencephalon, Mesencephalon, Rhombencephalon
Term
PROSENCEPHALON
Definition
the forebfrain
Term
Mesencephalon
Definition
the midbrain
Term
Rhombencephalon
Definition
the hindbrain
Term
What type of neuron is mostly found in special sensory organs
Definition
Bipoloar
Term
Based on the structual classes of neurons, which type of neuron is most abundant in the body? Where are they found?
Definition
Multipolar. Found mainly in the CNS
Term
This type of neuron is found mainly in the PNS. Only common in the dorsal root ganglia of the spinal cord
Definition
Unipolar
Term
What are the 2 functional divisions of the PNS
Definition
Sensory (afferent) and Motor (efferent)
Term
what are the two main parts of the motor division of the PNS
Definition
Somatic N.S and Autonomic N.S
Term
Somatic Nervous System
Definition
consciuos control of skeletal muscles
Term
Autonomic Nervous System
Definition
regulates smooth and cardiac muscles and glands
Term
What are the two main divisions of the ANS
Definition
sympathetic and parasympathetic
Term
What are the two principle cell types of the nervous system?
Definition
neurons and supporting cells
Term
Most abundant glial cells
Definition
astrocytes
Term
Microglia
Definition
phagocytes that monitor the health of neurons
Term
Ependymal
Definition
line the central cavities of the brain and spinal column
Term
The types of neuroglial cells that provide myelin in the central nervous system
Definition
Olingodendrocytes
Term
Ependymal
Definition
type of neuroglial cells help regulate the composition of cerebrospinal fluid?
Term
The type of neuroglial cell that aids regeneration by forming a regeneration tube to help reestablish the former connection is the _______________.
Definition
Schwann cells
Term
gyri
Definition
ridges
Term
Sulci
Definition
shallow grooves
Term
Deep sulci
Definition
divides the hemispheres into 5 lobes
Term
Central Sulci
Definition
separates the frontal and parietal lobes
Term
Parieto-occipital sulcus
Definition
separates the parietal and occipital lobes
Term
Lateral Sulci
Definition
separates the parietal and temporal lobes
Term
What borders the central sulcus
Definition
precentral and procentral
Term
Three basic regions of the cerebral hemispheres
Definition
cortex, white matter, basal nuclei
Term
Cerebral Cortex
Definition
enables sensation, communication, memory, understanding, and vouluntary movements
Term
Cerebral Cortex: Motor Areas
Definition
Primary motor cortex, premotor cortex, Broca's area, frontal eye field
Term
Premotor Cortex
Definition
controls learned skills, repitious, or patterned motor skills
Term
Where is the premotor cortex located?
Definition
anterior to the precentral gyrus
Term
Threes types of functional areas of the Cerebral Cortex
Definition
Motor areas, sensory areas, association areas
Term
Broca's Area
Definition
located anterior of the premotor
A motor speech area that directs muscles of the tongue
Term
Frontal Eye Field
Definition
located anterior to the premotor but superior to Broca's area
Controls voluntary eye movement
Term
Sensory Areas of the Cerebral Cortex
Definition
primary somatosensory, somatosensory association cortex, visual and auditory, olfactory, gustatory, and vestibular cortices
Term
Association Areas
Definition
Prefrontal cortex
Language areas
General (common) interpretation area
Visceral association area
Term
Cerebral White Matter is responsible for communication between
Definition
the cerebral cortex and lower CNS center, and areas of the cerebrum
Term
Types of Cerebral White Matter
Definition
Commissures, Association fibers, projection fibers
Term
Basal Nuclei
Definition
Masses of grey matter found deep within the cortical white matter
Term
Three parts of Corpus Striatum
Definition
Caudate nucleus, Lentiform nucleus, fibers of internal capsule
Term
Controls automatic behaviors necessary for survival
Definition
Brain Stem
Term
Consists of three regions – midbrain, pons, and medulla oblongata
Definition
Brain stem
Term
Controls autonomic behaviors necessary for survival
Definition
Brain stem
Term
Most Inferior part of the brain stem
Definition
medulla oblongata
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