Nervous System 2 Flashcards
What are the components of the nervous system
Central nervous system
Peripheral nervous system
In the CNS what are the three major components that make it up
Brain, brainstem, diecephalon, spinal cord
What are the two parts of the brain
Cerebrum, cerebellum
What are the two parts of the diencephalon
Thalamus, hypothalamus
What are the components of the brain stem
Medulla oblongata, pons, midbrain
What part of the brain is composed of neuron cell bodies and their dendrites
Grey matter
Where can grey matter be found
Cortex of cerebrum
Nuclei
Central area of the spinal cord
What are neuronal axons with their myelin sheathes and found in every region of the CNS
White matter
What has a left and right hemisphere and the outer layer is made of grey matter
Cerebrum
What are numerous folds formed by grooves and greatly increases surface area which are elevated folds= gyri or depressed grooves= sulci of the cerebrum
Convolutions of the cerebrum
What is subdivided into 5 lobes by deep sulci fissures in the brain
Cerebral cortex
What are the five lobes of the cerebral cortex
Frontal Parietal Temporal Occipital Insula
The structure that is a pathway of axons that connects the hemispheres
• axons go in both directions
Corpus callosum
The specialization of function in one hemisphere or the other hemisphere
Cerebral dominance
What hemisphere of the cerebral cortex is about language & analytical ability
Left hemisphere
What hemisphere of the cerebral cortex is about visual-spatial ability
Right hemisphere
What are continuously communicating with each other thru the corpus callosum
Hemispheres
What are the major areas for sensory perception and voluntary motor control in the cortex
By their position to the central sulcus
What is the part of the sulcus that is anterior to central sulcus and the most posterior part of frontal lobe
Pre - central sulcus area
What is the part of the sulcus that is posterior to central sulcus and the most anterior part of parietal lobe
Post central sulcus area
Of the known cerebral functions which one voluntary motor control of the skeletal system muscles
Frontal
Of the known cerebral functions which one has somatesthethic interpretation; understanding speech and formulating words to express thoughts and emotions
Parietal
Of the known cerebral functions which one has interpretation of auditory sensations; storage (memory) of auditory and visual experiences
Temporal
Of the known cerebral functions which one is the integration of movements in focusing the eye; correlation of visual images with previous visual experiences and other sensory stimuli
Occipital
Of the known cerebral functions which one is memory; sensory (principally pain) and visceral integration is called
Insula
The strip of cortex that runs medial to lateral and found in both hemispheres. The amount of cortex is based on the number of sensory receptors a specific area the body has
Post central sulcus area
The strip of cortex that runs medial to lateral and found in both hemispheres. The amount of cortex is based on how much fine control a muscle has
Pre-central sulcus
What part of the brain coordinates and smoothes out muscle movements. The movements are initiated by the motor cortex of the cerebral cortex. Regulates balance.
Cerebellum
What is the inner or central area of the brain
Diencephalon
What are the two divisions of the diencephalon
Thalamus and hypothalamus
In the diencephalon which part is the gateway and acts like a relay station
Thalamus
In the diencephalon which part regulates body homeostasis and is the primary controller of the pituitary gland, temp control, thirst control, water control thru kidney
Hypothalamus
