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64 Cards in this Set
- Front
- Back
Peri |
Around |
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Dendrites receive signals from |
Other neurons |
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Meninx |
Membrane |
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Meninges... |
Protect and cushion the brain and spinal cord |
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Dura |
Strong |
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Arac |
Spider |
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Pia |
Tender |
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Mater |
Mother |
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Gray matter |
Darker tissue of the spinal cord that consists mostly of nerve cell bodies and dendrites |
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White matter |
Lighter tissue of the spinal cord that consists mostly of myelinated axons |
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Sulcus |
Groove on the surface |
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Ventral |
Front |
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Dorsalg |
Back |
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Ganglion |
A cluster or nerve cell bodies |
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Cauda equina |
Horses tail |
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Filum terminale |
Terminal thread |
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Numbers of spinal nerves |
8 pairs of cervical 12 pairs of thoracic 5 pairs of lumber 5 pairs of sacral 1 pair of coccygeal |
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Plexus |
Network of nerves |
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Three biggest nerve plexus |
Cervical plexus- head and neck Brachial plexus- upper limb Lumbosacral plexus- plevis, genitalia and lower limb |
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Brachial plexus is divided into |
Roots, trunks, divisions, cords and branches |
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Each trunk has |
Anterior and posterior division |
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Lateral cord formed from... |
Two anterior divisions from the superior and middle trunks |
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Posterior cord formed from |
All three posterior divisions |
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Medial cord formed from |
One anterior division from the inferior trunk |
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Dermatomes |
Identifiable regions of skin supplied by a single nerve |
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White and gray matter locations |
Spinal cord - gray matter on inside and white matter on outside Brain - gray matter on outside and white matter on inside |
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5 main vesicles of the brain |
Telencephalon Diencephalon Mesencephalon Metencephalon Myelencephalon |
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Gyri |
Mounds on the cerebral Cortex (outer surface) |
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Sulci |
Crevices on the cerebral cortex (outer surface) |
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Corpus callosum |
Largest structure that allows signals to travel from one cerebral hemisphere to the other |
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Ventricles |
Cerebrospinal fluid inside the brain |
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Septum pellucidum |
Separates the two lateral ventricles |
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Choroid plexus |
Group of specialized cells that produce CSF from the blood in a nearby vessel |
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Longitudinal fissure |
Separates the cerebral hemispheres |
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Transverse fissure interal |
Separates the cerebrum and cerebellum |
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Interthalamic adhesion |
Second largest structure that allows signals to travel from one cerebral hemisphere to the other |
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Habenula |
Connects the pineal gland to the thalamus |
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Anterior and posterior commissures |
Allow signals to travel from one cerebral hemisphere to another |
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Two interventricular foramina |
Allow CSF produced in the choroid plexuses in each of the lateral ventricles to flow into the third ventricle |
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Infundibulum |
Connects the hypophysis to the hypothalamus |
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Chiasm |
A crossing or intersecting of two tracts |
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Optic chiasm |
Where the two optic nerves intersect |
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Corpora quadrigemina |
Quadruplet (four) bodies (Latin) |
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Superior colliculi processes |
Sight |
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Inferior colliculi processes |
Sound |
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Cerebral aqueduct allows |
CSF to flow from the third ventricle to the fourth ventricle |
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Folia |
Folds on the surface of the cerebellum |
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Arbor vitae |
White matter structure in the cerebellum that resembles the shape of a tree |
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Arbor |
Tree |
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Vitae |
Life |
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Cerebellar peduncles |
Structure that attach the cerebellum to the brain stem |
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Medulla oblongata |
Structure where the gray and white matter “switch places” btw the two major CNS organs |
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CSF can exit the fourth ventricle through which four openings |
One medial aperture, two lateral apertures, one opening to the central canal of the spinal cord |
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Dural reflections |
Folds of dura mater that extends into the fissures of the brain |
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Flax cerebri sits into |
Longitudinal fissure and physically separates the two cerebral hemisphere |
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Tentorium cerebelli sits into |
Transverse fissure and physically separates the cerebrum and the cerebellum |
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Dural sinuses |
Contain venous blood, and are within dural reflections/dural mater. Collect blood and circulated CSF and shunt them to through the jugular foramen to go back to the heart |
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Superior and inferior sagittal sinuses are contained within the |
Falx cerebri |
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The straight sinus and confluence of the sinuses are contained within the |
Intersection of the falx cerebri and tentorium cerebelli |
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Straight sinus receives blood from the |
Inferior sagittal sinus |
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Confluence of the sinuses collects blood from the |
Superior sagittal and straight sinuses before shunting it laterally to the transverse sinuses |
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Transverse sinuses are contained within the |
Tentorium cerebelli, shunt blood to the sigmoid sinuses |
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Sigmoid sinuses are contained within the |
Dura mater lining the base of the skull, transport venous blood to the jugular foramen |
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Arachnoid granulations are projections of the |
Arachnoid mater into the dural sinuses that allow CSF in the subarachnoid space to enter the dural sinuses |