Chap 15 Flashcards
THE FOUR MAIN REGIONS OF THE BRAIN
Cerebrum
Diencephalon
Brain Stem
Cerebellum
THE SURFACE OF THE BRAIN HAS RIDGES AND VALLEYS CALLED
Ridges - Gyrus
Valleys - Sulcus
GRAY MATTER CONTAINS
dendrite, soma(cell body), non-myelinated axons, interneurons
TWO DIRECTIONS THAT ARE USED IN REFERENCE TO THE BRAIN
ROSTRAL IS ANTERIOR, IE TOWARD THE Nose
CAUDAL IS POSTERIOR, IE TOWARD THE Tail
THE SOFT STRUCTURES THAT SUPPORT AND PROTECT THE BRAIN
Cranial Meninges
Cranial Meninges Support and Protect the Brain by
- SEPARATING THE SOFT TISSUE FROM THE BONY CRANIUM
-CONTAIN SOME OF THE Blood Vessels THAT SUPPLY AND DRAIN THE BRAIN - CONTAIN AND CIRCULATE Cerebrospinal Fluid
-IT IS DIVIDED INTO A PERIOSTEAL LAYER AND THE MENINGEAL LAYER
THE Dura Mater - MOST SUPERFICIAL OF THE MENINGES
-THIS LAYER HAS A SUPERFICIAL TISSUE LAYER
-A DEEP SPACE KNOWN AS THE SUBARACHNOID SPACE AND
-CONTAINS CEREBROSPINAL FLUID
THE ARACHNOID LAYER - MIDDLE LAYER
THIS LAYER ADHERES TIGHTLY TO THE OUTER SURFACE OF THE BRAIN
THE PIA MATER - DEEP LAYER
FORMED BETWEEN THE PERIOSTEAL AND MENINGES LAYERS OF THE DURA MATER
CRANIAL DURAL SEPTA
SEPARATES THE TWO HEMISPHERES OF THE CEREBRUM
AND IS FOUND IN THE LONGITUDINAL FISSURE
FALX CEREBRI - LARGEST OF THE DURA SEPTA
SEPARATES THE CEREBRUM FROM THE CEREBELLUM, IS THE ONLY ONE THAT RUNS Horizontal
TENTORIUM CEREBELLI
SEPARATES THE TWO HEMISPHERES OF THE CEREBELLUM
FALX CEREBELLI
THESE SINUSES RUN WITHIN THE MARGINS OF THE DURA SEPTA
DURAL VENOUS SINUSES
FOUR DURAL VENOUS SINUSES FOUND IN THE MIDLINE
SUPERIOR SAGITTAL SINUS INFERIOR SINUS
STRAIGHT SINUS
OCCIPITAL SINUS
SINUS FOUND IN THE SUPERIOR ASPECT OF THE FALX CEREBRI
SUPERIOR SAGITTAL SINUS
SINUS FOUND IN THE INFERIOR ASPECT OF THE FALX CEREBRI
INFERIOR SINUS
SINUS WHICH JOINS THE INFERIOR TO THE SUPERIOR IN THE POSTERIOR REGION
STRAIGHT SINUS
FOUND IN THE FALX CEREBELLI
OCCIPITAL SINUS
SINUSES THAT RUN WITHIN POSTERIOR BORDER
TRANSVERSE SINUSES
THESE SINUSES DRAIN INTO THE INTERNAL JUGULAR VEIN
SIGMOID SINUSES
THE UNION OF THE SUPERIOR SAGITTAL, STRAIGHT, OCCIPITAL AND BOTH TRANSVERSE SINUSES
CONFLUENCE OF THE SINUSES
CAVITIES FILLED WITH CEREBROSPINAL FLUID
BRAIN VENTRICLES
THE FOUR VENTRICLES OF THE BRAIN
TWO LATERAL, THIRD & FOURTH VENTRICLES
THESE VENTRICLE ARE PAIRED AND ARE SEPARATED FROM EACH OTHER BY THE SEPTUM PELLUCIDUM AND THE INTERVENTRICULAR FORAMEN JOINS THEM TO THE NEXT VENTRICLE
LATERAL VENTRICLE
-SEPARATES THE TWO HALVES OF THE THALAMUS AND THE INTERTHALAMIC ADHESION JOINS THE TWO HALVES THROUGH A “PORTHOLE”
THIRD VENTRICLE
IS FOUND ANTERIOR TO THE CEREBELLUM AND POSTERIOR TO THE PONS AND TERMINATES IN THE CENTRAL CANAL OF THE SPINAL CORD
FOURTH VENTRICLE
PROVIDES BUOYANCY AND CARRIES NUTRIENTS TO THE BRAIN AND REMOVES WASTE
CEREBRAL SPINAL FLUID
IT DIVIDES THE BRAIN INTO TWO HALVES CALLED RIGHT AND LEFT CEREBRAL HEMISPHERE
LONGITUDINAL FISSURE
LOBE THAT DEALS WITH VOLUNTARY MOTOR FUNCTION, CONCENTRATION, VERBAL COMMUNICATION, DECISION MAKING, PLANNING, AND PERSONALITY
FRONTAL LOBE
LOBE THAT DEALS WITH GENERAL SENSORY FUNCTION
PARIETAL LOBE
LOBE THAT DEALS WITH HEARING AND SMELL
TEMPORAL LOBE,
LOBE THAT DEALS WITH AND STORES VISUAL MEMORIES
OCCIPITAL LOBE
DEALS WITH INTERPRETATION AND MEMORY OF TASTE
INSULA
