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50 Cards in this Set
- Front
- Back
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Cerebrum
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Conscious thoughts
intellectual functions |
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Precentral Gyrus
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Voluntary movemnt
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Postcentral Gyrus
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Recieves Symatic Sensory info
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Corpus Callosum
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Connects side of the brain together
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Ventricles
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Cavaities filled with cebreal fluid
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Thalamus
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Sends sensory info to part of the brain
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Hypothalamus
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emotions, autonomic functions, hormone production
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midbrain
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Visual and auditory information
Quick responses |
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Pons
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Pace & depth of breathing
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Medulla Oblongata
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Heart rate, blood pressure, respiration, Digestive
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Cerebellum
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Adjusts motor activites
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Olfactory
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Smell
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Optic
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Eyes
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Oculomotor
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innervates 4 out of 6 muscles that move the eye
Size of pupil, shape of lenses |
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Trochlear
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muscle of the eye
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Trigeminal
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Provide sensory info from head ro face
Chewing muscle |
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Abducens
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lateral rectus
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Facial
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mixed nerves of the Face; sensory and motor neurons
taste of 2/3 front of the tongue |
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Vestibulocochlear
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HEaring and balance
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Glossopharyngeal
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monitors blood pressyre
taste from the back of the throat |
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vagus
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heart, smooth muscle, glands, esphogus, ear canals
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Accessory
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Voluntary swollowing
Speech |
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Hypoglossal
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Voluntary control of tongue
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Why do we have wrinkly Cerebrums?
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more surface area
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How many Segments does the spinal cord have?
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31
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Why is the white matter white?
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Mostly lipid adn light color
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Why is the gray matter gray?
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lacks myelin and is darker in color
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Horn
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Arm or extension of gray matter
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Transverse Gray Commissure
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Connecting the horn on either side of the cord
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What does the central canal contain?
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Cerebral spinal fluid
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Dorsal horns
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regions where many Incoming sensory neurons terminate after entering spinal cord
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Ventral Neurons
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Regions where many motor neurons pathway interneurons terminate
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Somatic motor neurons
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combine with motor neurons to exit the spinal cord
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How many white matters are on each sdide of gray matters of the spinal cord?
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3
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Sensory tracts
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axons inside carry info up the spinal cord to the brain
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Motor tracts
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Axons inside carry info from the brain down to the spinal cord
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Neurons enter and exit the spinal cord through 31 sets of
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Nerve cords
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Nerve roots are made up of
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2 venral roots and 2 dorsal roots
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Dorsal root ganglion
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is made up of cell bodies of the sensory neurons
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The 2 ventral and and 2 dorsal roots form
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Spinal nerves
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left part of the brain controls
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speech
right side of the body reasoning skills, logic, number skills |
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Right part of the brain controls
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Creative and athletic part
art appreciation, visual side |
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Bipolar Neurons
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Two Processes- one dendrite and one axon- with the cell body between them.
Rare neurons but occur in special sense organs |
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Multipolar Neurons
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two or more dendrites and a sigle axon
Most common Neuron in the CNS Control Skeltak muscles |
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Unipoloar Neurons
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dendrites and axon are continous.
Cell body lies off to one side most sensory neurons of the peripheral nervous system |
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Functions of nervous system
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monitors internal and external enviroments
integrates sensory info cordinates voluntary and involuntary responses and many others |
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Central Nervous System (CNS)
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spinal cord
brain |
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Peripheral Nervous system (PNS)
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nerutral tissue outside of CNS
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PNS Section one
Afferent Division |
brings sensory info to the CNS
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PNS Section two
Efferent division |
carries motor commands to muscles and glands
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