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Answers 12-17
REtest answers
| Question | Answer |
|---|---|
| Electrical excitability | all of the above..muscle calls and neurons |
| contains nueronal cell bodies, dendrites, axons, terminals, neuroglia | Gray Matter |
| Resting Membrane potential | -40 to -90 mV |
| Depolarizing graded potential | Makes membrane less polarized |
| neurotransmitter depolarizes postynaptic membrane referred to as | excitatory |
| IPSP | inhibitory postsynaptic potential |
| diffusion, enzymatic degration, and uptake are all ways to | remove neurotransmitter |
| not considered major part of the brain | cauda equina |
| consists of medulla, pons, midbrain | brain stem |
| protects brain by preventing passage of toxins | blood brain barrier |
| CSF carries chemicals from _____ to neurons | arachnoid space |
| locataed in each hemisphere of the cerebrum | lateral ventricle |
| networks of capillaries in walls of ventricles | choroid plexuses |
| fingerlik projects that reabsord cfs | arachnoid villus |
| medulla nuclie are | both a&b masses of gray and white matter |
| Helps maintiain consciousness | pons |
| folia are | ridges of white matter |
| which glands are directly controlled by hormones in the hypothalamis? | pituitary |
| structures conduct nerve impules between gyri in different hemisphere in cerebrum? | pyramids |
| which part in cerebrum responsible for vision? | primary visual area |
| which part in cerebrum responsible for conscious movement? | Primary Frontal area |
| cranial nerves carry sensory info to olfactory? | I |
| Cranial nerve V also known as? | Trigeminal |
| Cranial nerve responsible for visceral activity | Vagus |
| Cranial nerve responsible for facial expression | Facial |
| Most superfical of the 3 spinal meninges | Dura Mater |
| contrains cerebrospinal fluid | subarachnoid space |
| contains sensory axon that conduct nerve impulses from sensory receptor in skin, muscle internal organs into cns. | posterior root |
| spinal nerves | all of the above |
| white matter tracts spinal cd. contain ascending information? | Sensory tracts |
| descending tracts contain what type of info | motor |
| Superficial covering over entire nerve | Epineurium |
| postganlionic neuron | release neurotransmitter at the effector cell |
| which nerotransmitter bind to autonomic receptors | norepinephrine & ach |
| Classified as cholingeric receptors | nicotine and muscarine receptors |
| cells provide sense of smell | olfactory hair cells |
| physical support nourishment & electrical insulation for olfactory nerves | supporting cells |
| provide sense of taste | gustatory cells |
| which of the following nerves serves in a gustatory function | Vagus |
| which is not considered an accessory to the eye retina | eyebrow |
| how may extrinsie eye muscles responsible for moving the eye | 6 |
| this is the transparent coat that covers the iris | cornea |
| the main function of this structure is to regulate the amount of light entering the eyeball through the pupil | iris |
| this lies between the lens and the retina | victreous chanbers |
| which of the following receptors is primarily used during light striations | cones |
| which below structures converts vibration to action potential | organ of corti |
| which of the below structures senses dynamic equilibrium | sevicicluar canals |
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