Presentation on theme: "Brain. Major parts of brain 1. Brain stem – continuous with spinal cord; includes: 1.medulla oblongata- most inferior; a hard blow can be fatal; responsible."— Presentation transcript:
Major parts of brain 1. Brain stem – continuous with spinal cord; includes: 1.medulla oblongata- most inferior; a hard blow can be fatal; responsible for heart rate, breathing, reflexes: vomiting, coughing, swallowing, hiccupping, sneezing 2.Pons – superior to medulla; a “bridge” 3.Midbrain – reflex center for eyes/ears (tracking moving things/startle reflex), a “bridge” WHAT 2 THINGS DOES THE PONS CONNECT? CAN YOU DESCRIBE THE NEURAL PATHWAY FOR “TRACKING”?
What are the parts of the diencephalon? a.Midbrain, thalamus, pons b.Thalamus, hypothalamus, epithalamus c.Midbrain, pons, medulla oblongata d.Cerebellum, midbrain, brainstem
What are the parts of the brainstem? a.Medulla oblongata, pons, midbrain b.Diencephalon, pons, cerebellum c.Thalamus, hypothalamus, epithalamus d.Pineal body, pituitary gland, cerebral aqueduct
What is the overall function of the brainstem? a.Processing/interpreting information b.Timing of skeletal muscles/coordination c.Producing CSF d.Controlling vital signs
What is the order of meninges from CLOSEST to the brain to the skull (from deep to superficial)? a.Arachnoid mater, pia mater, dura mater b.Pia mater, arachnoid mater, dura mater c.Dura mater, arachnoid mater, pia mater d.Pia mater, dura mater, arachnoid mater
Cerebrum anatomy Cerebral hemispheres: right and left Cerebral cortex: outer rim of gray matter Gyri: folds of brain Fissures: deepest grooves (longitudinal fissure – separates right and left hemispheres) Sulci: shallower grooves
Lobes of cerebrum frontal, parietal, temporal, occipital Separated by different sulci (ex: central sulcus separates frontal and parietal lobes) 2 main gyri: –precentral gyrus- anterior to central sulcus; part of frontal lobe; primary motor area (voluntary muscle contractions) –Postcentral gyrus – posterior to central sulcus; part of parietal lobe; primary somatosensory area (pain, touch, temperature, tickle, itch, etc)