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15 Cards in this Set
- Front
- Back
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Protection |
Meninges (3 Layers) -outer dura mater, middle arachnoid layer, inner pia matter Skull |
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Meninges |
Covers to protect brain + spinal cord Outer Dura Mater (tough mother), middle arachnoid layer - cobweb tissue filled with fluid, inner pia mater (soft mother) - rich in blood vessels |
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Blood Brain Barrier |
Filtration-regulation material entering CNS Materials enter CNS via diffusion or facilitated diffusion Seperation of blood and CNS |
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Cerebral Cortex |
Non myelinated neurons Controls sensory, motor activity Thought, memory, emotion, logic, personality |
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Cerebral Cortex Divided into 4 Lobes |
Occipital (eyes), Temporal (hearing), Frontal (voluntary movement, personality, intelligence, speech) Parietal (sensory info from skin receptors + info regarding body) |
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Corpus Callosum |
connect left/right cerebral hemispheres Tell each half of brain what other half is doing |
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Lobe Divisions |
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Cerebellum (Hindbrain) |
Muscle coordination + balance |
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Midbrain |
Receives specific sensory input; connects hind/fore brain Receives specific sensory input; connects hind/fore brain |
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Thalamus (Forebrain) |
Relays info from senses to spinal cord + cortex. Processes crude sensations |
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Hypothalamus (Forebrain) |
Regulates pituitary gland, heart rate, blood pressure + temp. 4 F's |
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Pons (Hindbrain) |
Relays info between cerebellum + cerebral cortex |
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Medulla Oblongata (Hindbrain) |
Controls subconscious activities ex. Heart rate, blood pressure, swallowing |
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Ventricles |
Four hollow, fluid filled spaces 150mL cerebrospinal fluid (CSF) absorbs shock + nourish's CNS cells Composition strict via choroid plexus + BBB |
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Cerebrospinal Fluid |
Transports hormones, white blood cells, + nutrientd across BBB for cells of brain + spinal cord. Shock absorber to cushion brain. |
