What does the CNS control
Brain and Spinal cord
What is in the diencephalon
Hypothalamus, Thalamus, Epithalamus and Mammillary Body
What are the 5 lobes and what do they do
Frontal Lobe - muscle control, motor skills, cognitive function
Occipital Lobe - sight
Parietal lobe - taste, sensation of touch, pain, pressure and balance
Temporal Lobe - hearing, memory, thoughts and judgements
Insula - located deep in the fissures separating the lobes
3 meninges layer and what do they do
Dura mater - Just below the skull
Arcachanoid mater - a loose brain covering
Pia Mater - connective tissue, rich supply of blood vessels
Cerebrospinal Fluid - Keeps brain from crushing itself
Brocas area
left side, special motor speech area
Wernickes area
word bank
White Mater - Sends information
White mater is myelinated and has 3 functions
Commissures - connect corresponding gray areas of different hemisphere
Association fibers - connect different parts of the same hemisphere
Projection Fibers - tie the cortex to the rest of the nervous system
Gray Mater - Processes Information
Processes information—thinking, decision-making, sensing, motor control.
Made of neuron cell bodies, dendrites, and unmyelinated axons.
4 Brain Protection Structures
Blood brain Barrier - Acts like a bouncer
Cerebrospinal Fluid - Keep brain from crushing
Meninges - Arachnoid, Pia and Dura mater
Skull - prevents direct trauma
Thalamus
relays, sorts and directs sensory signals
Hypothalamus
body master regulator of homeostasis
Epithalamus
Sleep + wake cycle, releases melitonin
Mammillary body
Memory and recall
Brain Stem 3 parts
Mid brain
Pons
Medulla
Mid brain
Carries out higher level functions
Pons
Relay conversations w the other motor cortex and cerebellum
Medulla
Heart rate
vessel diameter
respiratory rate
Cerebellum
Coordination between gross and fine motor tasks
Provides instruction to motor cortex
Balance
Capable of learning complex motor activities
