CHAPTER 12: CENTRAL NERVOUS SYSTEM Flashcards
CEREBRUM
LARGEST PART OF BRAIN
2 HEMISPHERES
CONTROLS HIGHER BRAIN FUNCTIONS
BASAL NUCLEI
MASSESS OF GRAY MATTER
RELAYS MOTOR IMPULSES FROM CEREBRAL CORTEX TO BRAIN STEM AND SPINAL CORD
DIENCEPHALON
MASSES OF GRAY MATTER
THALAMUS: RELAYS SENSORY IMPULSES FROM NERVOUS SYSTEM TO CEREBRAL CORTEX
HYPOTHALAMUS: MAINTAINS HOMEOSTASIS, PRIMARY VISCERAL CONTROL CENTER, CONTROLS ANS AND ENDOCRINE SYSTEM, BODY TEMP
EPITHALAMUS: CONTAINS PINEAL GLAND THAT SECRETES MELATONIN
3 PARTS OF BRAIN STEM AND WHAT IT DOES
MIDBRAIN
PONS
MEDULLA OBLONGATA
CONNECTS CEREBRUM TO SPINAL CORD
MIDBRAIN
MASSES OF GRAY MATTER
JOINS SPINAL CORD TO HIGH BRAIN REGIONS
REFLEX CENTERS TO MOVE EYES, HEAD
PONS
CONTAINS MASSES OF GRAY MATTER AND NERVE FIBERS
BULGE ON UNDERSITE OF BRAIN STEM
RELAYS IMPULSES BETWEEN MEDULLA OBLONGATA AND CEREBRUM
REGULATES BREATHING
MEDULLA OBLONGATA
CONTAINS GRAY MATTER AND NERVE FIVERS
ENLARGED CONTINUATION OF SPINAL CORD
CONDUCTS IMPULSES BETWEEN BRAIN AND SPINAL CORD
CONTAINS CONTROL CENTERS FOR CARDIAC/RESPIRATORY
CEREBELLUM
LARGE TISSUE MASS UNDER CEREBRUM BEHIND BRAIN STEM
2 LATERAL HEMISPHERES
COMMUNICATES WITH REST OF CNS
SENSORY INFO, POSITIONING, MUSCLE ACTIVITIES
WHAT SEPARATES THE LATERAL VENTRICLES IN THE BRAIN?
SEPTUM PELLUCIDUM
WHAT CONNECTS THE TWO BRAIN HEMISPHERES?
CORPUS CALLOSUM
FISSURE VS SULCUS
FISSURE: DEEP GROOVE
SULCUS: SHALLOW GROOVE
CEREBRAL CORTEX
THIN LAYER OF GRAY MATTER AROUND THE CEREBRUM
“CENTER OF THE CONSCIOUS MIND”
AWARENESS, COMMS, SENSATION, MEMORY, INITIATION OF VOLUNTARY MOVEMENTS
5 LOBES OF THE CEREBRAL CORTEX AND THEIR LOCATIONS
FRONTAL (FRONT)
PARIETAL ( TOP)
TEMPORAL (SIDE)
OCCIPITAL (BACK)
INSULA (INSIDE)
3 FUNCTIONAL AREAS OF THE CEREBRAL CORTEX
MOTOR, SENSORY, ASSOCIATION
EACH HEMISPHERE CONTROLS THE MOTOR AND SENSORY FUNCTIONS OF THE ___ SIDE OF THE BODY
OPPOSITE
ASSOCIATION FIBERS CONNECT WHAT?
VARIOUS PARTS OF THE SAME BRAIN HEMISPHERE
COMMISSURAL FIBERS CONNECT WHAT?
HEMISPHERES SO THEY CAN FUNCTION TOGETHER