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A & P Vocab

Vocab for Brain and spinal cord nerves

QuestionAnswer
Acetylcholine Is the neurotransmitter released at the neuromuscular junction the synapes between a neuron and a muscle cell.
Action Potenial A sudden electrical change at the membrane.
Afferent Carrying towards a given point such as a sensery neuron that carries nerve impulese towards the CNS.
Autonomic Nervous System Nervous system involuntary division.
Axon Are neuron fibers that conduct impulses away from the cell body.
Dendrite Are neuron fiber that conduct impulses to the cell body.
Effector Any tissue on organ that carries out a nerveous system cpmmand (fight or flight respones)
Epinephrine Although there are many known neurotransmitter the main one is also called adrenaline
Ganglion any collection of nerve cell bodies located outside the CNS
Interneuron nerve cell that transmitts impulses with the CNS
Motor A few of cranial nerves that contain only motor fiber conducting impulses away from the brain.
Nerve A fiber bundle located within the PNS.
Nerve Impulse Start with a local reversal in the membrane potentail caused by change in the ion concentration on either side.
Nueritis Inflammation of a nerve with pain tenderness and loss of sensation.
Neuroglia Conducting tissue the nerveous system contain cell that support and protect the neurons.
Neurotransmitter Carries impluses across the synapes.
Parasympatheic Nervous System Motor pathway begins in the craniosacral area with fibers arising from bodies in the blood stream.
Plexus Large anterior branches interlace to from networks.
Receptor postsynaptic reciving membrane usually that of that of a dendrite but sometimes another cell part there are special site.
Reflex Is a rapid uncomplicted and automatic response involve.
Sensory a cell that transmitts impulses towards the CNS.
Somation Nervous System Is controlled volunarily(by conscious will) and all its effector are skeletal Muscule.
White Matter Myelinated nervous tissue.
Sympathetic Nerves System Motor neuron originate in the spinal cord wit the cell bodies in the thoracic and lumber regions.
Synapes Neurons do not work alone impulses must be transferred betweeen neurons to convey info with the nervous system.
Tract Bundle of neuron fibers within the CNS.
Aphasia a loss or defect in the language communication
Brain Stem Is composed of the midbrain the pons and the medulla oblongata
Cerebellum Is made up of three parts the middle portion(vermis) and the two lateral hemispheres, left and right
Cerebral Cortex The outer nervous tissues of the cerebral hemisphere is gray matter that makes up the cortex.
Cerebrospinal Fliud Is a clear liquid that circulates in the brain and spinal cord.
Concussion Results in blow to the head or from sudden movement of the brain against the skull, as in violent shaking.
Electroencephalograph (EEG) Measureable currents they are recorded by this.
Gyrus cortex is arraged inthe folds forming elevated portions.
Hematoma Head trauma is bleeding into the the meninges.
Hypothalamus Help maintain homeostasis.
Medulla Oblongata Respirtory center, Cardiac center, Vastmotor( blood flow, blood perssure).
Meninges Are the three layers of connective tissues the surround the both the brain and spinal cord.
Midbrain Has reflex center concerned with vision and hearing.
Pons Help regulates respiration
Stroke The most common is a blood clot that blocks blood flow to an area of the brain.
Sulcus These rasied areas are separated by shallow grooves.
Thalamus large ovoid mass of gray matter situated in the posterior part of the forebrain that relays sensory.
Created by: adunbar0006
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