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Details Title: TEST THREE Description: anatomy 3 Total Flash Cards: 33 Created: 05/14/2008 18:04:10	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Lower Motor Neurons Definition Somatic Motor Neurons whose cell bodies lie in the spinal cord Term Subarachnoid space Definition Circulates the cerebrospinal fluid once it has left the ventricles. Term Triceps Definition Muscles that extends the arm while doing push ups Term Deltoid Definition Major abductor muscle in the upper arm Term Hamstring Definition Contains semitendonosis semimembranosus and biceps femoris Term Depolarization Definition Opening the sodium channels in the membrane of a neuron results in Term Cholinergic synapses Definition Releases the neurotransmitter Acytelcholine Term Action Potentials Definition When Sodium channels are blocked, this makes the neuron unable to generate action potentials Term Bipolar Definition Neurons that have on axon and one dendrite Term All or nothing principle Definition All stimuli great enough to bring the membrane to threshold will produce that identical action potential Term Ependymal, microglia, oligodendrocytes, astrocytes Definition 4 Glial cells that are found in the CNS Term Chemical Synapses Definition These synapses dominate the nervous system Term The brain and Spinal Cord Definition Compromises the Central Nervous System Term ISPS (Inhibitory postsynaptic potentials) Definition Results in local hyperpolarization Term Horns Definition Projections of gray matter toward the outer surface of the spinal cord Term Segments of the spinal cord that control the limbs Definition Enlargements of the spinal cord occur in.. Term SHORTER Definition The adult spinal cord is (shorter or longer) than the vertebral column Term Dura Mater Definition Tough fibrous outermost covering of the spinal cord Term Mixed Nerves Definition Spinal NErves are Term Dorsal Root Ganglia Definition contain cell bodies of sensory neurons Term Cervical- 8 Thoracic- 12 lumbar-5 sacral-5 coccygeal-1 Definition Number of spinal bones in each category Lumbar, sacral, etc. Term White Matter of the spinal cord Definition Contains bundles of axons that share common origins, destinations and funtions Term Hippocampus Definition important in learning and the storage of long-term memories Term Increase consciousness Definition Stimulation of the reticular formation results in... Term Medulla oblongate Definition Major centers concerned with autonomic control of breathing, blood pressure, heart rate, and digestive is located in Term Cerebellum Definition Oversees postural muscles of the body and makes rapid adjustments to maintain balance Term Frontal lobe Definition Anterior to the central sulcus Term Third and fourth ventricle Definition Linked by the cerebral aquaduct Term Association Definition Regions of the brain that are ivolved in interpreting data or coordinating motor responses Term Falx Cerebri Definition Fold of dura mater that projects between the cerebral hemisphere in the midsagittal plane Term Spinocerebellar Definition Spinal tract that relays information from proprioceptors to the CNS is Term Pyramidal system Definition Provides voluntary control over skeletal muscles Term First order neuron Definition The sensory neuron that delivers the sensation to the CNS