nervous tissue
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| show | nervous, endocrine
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| show | - sensing changes with sensory receptors-interpreting and remembering those changes- reacting to those changes with effectors
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| show | nerve
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| show | brain; foramen magnum
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| ____ is located outside the brain and the spinal cord, are small masses of nervous tissue containing primarily cell bodies of neruons | show 🗑
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| entric _____ help regulate the digestive system | show 🗑
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| show | sensory receptors
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| show | integrative
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| show | motor
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| show | brain/ spinal
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| show | -cranial/ spinal nerves (sensory & motor)-connects CNS to muscles, glands and all sensory receptors
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| show | somatic (voluntary) SNS
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| show | SNS
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| sensory neurons from visceral organs to CNS | show 🗑
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| motor neurons to smooth and cardiac mucles and glands (symp/parasymp) | show 🗑
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| involuntary sensory and motor neruons control GI tract | show 🗑
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| ______ neurons of the ENS monitor chemical changes within the GI tract and streching of its walls | show 🗑
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| consists of neurons in enteric plexuses that extend the length of the GI tract | show 🗑
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| enteric motor neurons govern contraction of GI tract organs, and acticity of the GI tract endocrine cells | show 🗑
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| functional unit of nervous system | show 🗑
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| capacity to pro. action potenial/ electical excitability | show 🗑
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| show | pro. rough ER and free ribosomes for protein synthesis
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| ____ give cell shape and support | show 🗑
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| show | microtubules
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| cell processes= | show 🗑
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| ___ are the recieving or input portions of a neuron (carry action potential toward soma) | show 🗑
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| show | axon
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| show | dendrites
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| show | axons
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| long, thin cylindrical process of cell | show 🗑
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| in axons they arise where? | show 🗑
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| show | neurotransmitters
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| show | protein synthesis
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| show | movement in one direction only- away from cell body
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| show | moves organelles & materials along surface of microtubules; either direction
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| most neurons in body are | show 🗑
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| sveral dendries and one axon- most common type of cell | show 🗑
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| one main dendrite and one axon | show 🗑
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| show | near retina, inner ear and olfactory
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| one process only (develops from a bipolar) | show 🗑
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| unipolar are always | show 🗑
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| transport sensory info from skin, muslces, joints, sense organs and viscera to CNS | show 🗑
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| show | motor (efferent) neurons
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| connect sensory to motor neurons- 90% of neurons in body | show 🗑
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| half of the volume of the CNS/ smaller cells than neurons | show 🗑
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| show | neuroglial cells
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| star- shaped cells/ form BBB by covering blood capillaries | show 🗑
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| show | Astrocytes
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| small cells found near blood vessels/ phagocytic role- clear away dead cells | show 🗑
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| form epithelial membrane lining cerebral cavities and central canal of spinal cord | show 🗑
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| produce CSF | show 🗑
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| derived from cells that also gave rise to macrophages and monocytes | show 🗑
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| show | satellite cells
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| show | satellite
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| most common glial cell type/ analogous to Schwann cells of PNS | show 🗑
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| show | Oligodendocytes
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| a multilayered lipid and protein covering called the myelin sheath | show 🗑
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| produced by Schwann cells and oligodendocytes surrounds the axons of most neurons | show 🗑
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| show | Schwann cells
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| show | Schwann cell
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| show | myelin sheath, Schwann cells
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| jelly-roll like wrappings made of lipoprotein | show 🗑
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| Schwann cell _____&______ forms outermost layer of neurolemma with inner portion being the myelin sheath | show 🗑
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| show | oligodendocytes
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| show | myelinated processes (white in color)
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| nerve cell bodies, dendrites, axon terminals, bundles of UNmyelinated axons and neuroglia | show 🗑
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| spinal cord= | show 🗑
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| show | brain
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| a ____ is a mass of nerve cell bodies and dendrites inside the CNS | show 🗑
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| neurons are electically excitable due to the ____ difference across their membrane | show 🗑
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| communicate with two types of electrical signals: | show 🗑
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| potentials that can travel long dis. | show 🗑
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| show | graded
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| show | ion channels
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| show | leakage
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| in leakage cannels, membrane permeablility to ___ is high | show 🗑
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| ____ channels open and close in response to a stimulus- results in neuron excitability | show 🗑
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| show | gated ion channels
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| _____ gated channels respond to a direct change in the membrane potential | show 🗑
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| respond to a spefici chemical stiumulus | show 🗑
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| show | mechanically gated ion channels
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| show | neg/ postivie
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| potential enegry difference at rest is | show 🗑
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| show | concentration of ions different inside and outside
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