Bates Chapter 17 Neuro Exam with correct Answers

Bates Chapter 17 Neuro Brain has 4 regions - 1. Cerebrum 2. Diencephalon 3. Brainstem 4. Cerebellum Brain hemisphere - 1. Frontal 2. Parietal 3. Temporal 4. Occipatal Neurons - Interconnecting nerve cells, consisting of cell bodies Axons - Single long fibers conduct impulses to other parts of nervous system Basal Ganglia (deep in brain) - Affects movement Thalamus - Process sensory impulses Hypothalamus - Maintains homeostasis & temperature regulation, HR, BP Affects endocrine system Governs emotional behaviors e.g. anger, sexual drive Hormones act directly on pituitary gland structures in diencephalon Gray matter - Aggregations neuronal cell bodies. Rims surfaces of cerebral hemispheres = forms cerebral cortex White matter - neuronal axons coated w myelin (white color), allow nerve impulses to rapidly travel Consciousness - interactions between intact cerebral hemispheres & reticular activating (arousal) system in (*diencephalon & upper brainstem*) Identify the following... cerebellum occipital lobe parietal lobe corpus callosum frontal lobe midbrain pons medulla - Identify the following... cerebellum occipital lobe wernicke's area Bates Chapter 17 Neuro parietal lobe postcentral gyrus central sulcus precentral sulcus frontal lobe lateral fissure broca's area temporal lobe medula - Cerebellum - Base of brain; *coordinates all movement*, helps maintain *body upright in space* Lumbar puncture - L3-L4 or L4-L5 vertebral interspaces to avoid spinal cord injuries Cauda equina. - Fan out like a horse's tail at L1-L2, where spinal cord terminates Spinal cord - Contains: grey matter (aggregations of nerve cell nuclei & dentrites) and white matter *connect to brain to PNS* Cord provides: segmental relays with the periphery, servings as a conduit for info flow to and from brain. Motor and sensory nerve pathways enter/exit through posterior/anterior nerve roots and spinal & pheripheral nerves. How many pairs of spinal nerves? Cervical? Thoracic? Lumbar Sacral? Coccygeal? - 31 pairs 8 cervical 12 thoracic 5 lumbar 5 sacral 1 coccygeal