CNS- The brain
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What 2 tissues is the CNS composed off -what does each tissue contain
-white matter (myelinated axons) -grey matter(cell bodies, dendrites, unmyelinated axons)
• Hindbrain -control center for what -what parts does it consist of (3)
-basic life activites (breathing, heartbeat, blood pressure) -medulla oblongated, pons, celebellum
1.1 : Medulla oblongata -what is it (2) -what does it control
-first extension from spinal cord, relay center of incoming/outgoing info -autonomic functions
1.2: Cerebellum located where -what type of matter -receieves input from what, where are they located -function
behidn the medulla -grey and white matter -recieves input from sensors called proprioceptors located in skeletal muscles and joints -movement and balance (fine control, posture, pressure, equillibrium)
1.3: Pons located where has part of what control system function
between medulla and midbrain breathing relayes messages from cerebellum to parts of cerebrum, midbrain, and other hindbrain centres
• Midbrain -located where -relayaes what info and where made up of 4 _______ which are relay centers for what reflexes
above the pons audio and visiual information between hindbrain and forebrain bundles of grey matter for eyes and ears reflexes
• Forebrain 3.1: Thalamus (relay station of brain) located where -relayes which 2 impulses, describe locations from where to where -what does it affect
above the midbrain -sensory impulses to the cerebral cortext -motor impulses from the cerebral cortex to the spinal cord -conciousness and perception of pain
3.2: Hypothalamus -control center for vital fucntions of what (3) -connected to and controls ______ ______ which controls what system
-autonomic nervous system, basic drives (hunger, thirst, sex), and emotions (rage, aggression, pleasure) -the pituitary gland, endocrine
3.3: Cerebrum -what is it -consists of right and left ______ _______, what are they responsible for? -what is the corpus callosum and what does it do -what is the group of neurons under the corpus callosum and what does itdo
-the largest part of brain (4/5) -right and left cerebral hemispheres -the corpus callosum is a thick band of nerve fibers that facilitates communication between the hemispheres -basal nuclei which helps for motor coordination