Card Set Information
What tis the Cerebrum?
not vital to servival
100 billion neurons
control site of the nervous system
In the Cerebrum, what is gray matter?
where synapses takes place in outter shell of cerebrum
folded areas for more surface area
covers entire brain
-cortex=towards the out side
handles executive function
15-25 is when it is fully matured.
In Cerebrum, what is white matter?
the signal wiring from one side to another
lobe to lobe
the bulk of the cerebrums interior
composed mainly of nerve fibers
In the Cerebrum, what are the hemisphere's?
Right= artistic abilities, spatial relationships
Left= uniformity, logic, rules, verbal skills, writing, math
the hemispheres are seperated by corpus collosum
What are the fibers in the white matter?
Commissural=left and right hemi communication
Association=with in teh same hemi communication
Projection= low centers
In the Cerebrum, what are the lobes?
there are 4 lobes of the cerebal
Frontal-personality, intelligence, planning and communication
Parietal-speech, understanding,interprets textures and shape
Occipital- focus the eye, conscious perceptions of vision
Temporal- sensation, storage of auditory and visual experiences.
In the CNS, what is the Diencephalon?
Central core of the cerebrum
forms connections with the cortex that are involved in complex mental processes (Pituitary gland)
principal autonomic center of brain
In the CNS, what is Cerebellum?
smooth, coordinated movements of skeletal mm
sits inferior and posterior to the large cerebal hemispheres
processes input received from the cerebral cortex, brain stem nuclei, and peripheral sensory receptors that influence motor neurons supplying skeletal mm.
provides mm's with precise timing, appropriate patterns of contraction for smooth coordinatied movements.
In CNS, what is the brain stem?
basic life support=breathing, heart activity, digestion
contains sensory and motor pathways between lower and higher centers
superior most part of the cns containing motor neurons
In CNS, what are Pons?
Middle cerebellar pedunclles connecting the cerebellum and cerebral cortetx for maximal efficiency of motor activites
nerve nuclei=serve as respiratory centers to control the normal rhythm of breathing.
In the CNS, what is the medulla oblongata?
houses the major autonomic reflex center that relays visceral motor control to the heart, blood vessels, respiratory and gut tube anatomy
In the CNS, what is the Spinal Cord?
least differentiated part of the CNS
2-way conduction pathway to and from higher centers in the brain
initiates complex patters of motor activity
alternating flexor-extensor patterns seen in walking
In the Spinal Cord, what is white matter tracts?
2-way communication between body and brain
In the Spinal Cord, what is the gray matter nuclei?
where message transferance happens