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nervous system and senses

Epineurium outermost covering of a nerve
axons carry nerve impulses away from the cell body
dendrites are usually highly branched
medulla oblongata is where the vital senses are located, part of the brain stem that holds the vital centers
oligodendrocytes type of glia cell that produces myelan for cells in the brain
dura matter outer most layer of meninges
neurolemma The outer cell membrane of a Schwann cell
cerebellum muscle coordination and lies just below the occipital lobe of cerebrum
conjuctiva a mucous membrane that lines the underside of the eyelids and covers the sclera in front
iris colored circular structure, seen through the cornea
pupil a hole in this doughnut-shaped muscle that dilates
glaucoma casued by excessive intraocular pressure
tympanic membrane where the external ear ends
cochlea structure in the inner ear considered the organ of hearing
Bones of the middle of the ear? stapes, incus, malleus
cornea window of the eye
mid brain most superior part of the brain stem
hypothalumus structure that is part of CNS but also produces hormones for endocrine system
cerebrum largest and uppermost part of brain
sulcus a shallow groove in outer surface of cerebrum
glaucoma caused by excessive intraocular pressure
tinnitus ringing in the ear
cataracts caused by cloudy spots in the lens of the eye
nyctalopia night blindness
oteosclerosis a structural irregularity of the stapes that impairs conduction
presbyopia "old sightedness
otitis refers to any ear infection
Refraction disorders myopia, hyperopia, and astigmatism
macular degeneration leading cause of blindness in elderly
meniere disease a chronic ear disease of unknown cause characterized by nerve defness and vertigo
conjunctivitis another term for pink eye
multiple sclerosis considered a myelin disorder, oligodendryte injury or death occurs, disease is most common in women within ages of 20 and 40
nervous system tumors neuroma is a general name for nervous system tumor, multiple neurofibromatsis is an example of a nervous system tumor, most tumors in nervous system result from metastasis of other types of tumors.
pons part of the brainstem that links the medulla oblongota and the thalamus
*why are males more likely to be colorblind? Genes on the X chromosome that produce abnormal photopigments
*Why is the smell of paint when walking in a newly painted room strong but less strong longer your there? your olfactory sensors are easily fatigued
*What about pathway for sense of smell that explains why smell of a traditional thanksgiving meal can generate such strong emotional memories nervous system stimulates info imbedded in your brain
which type of glia cell produces myelin for cells in brain? oliodendrocytes
most simple nervous system pathway? a two-neuron pathway
3 functions of the hypothalamus? produces antiduretic hormone, helps regulate body temp, and helps regulate water balance
parkinson disease is a nervous system disorder resulting from a deficiency of which neurotransmitter? dopamine
sense of smell is what type of sense? a special sense, and a chemoreceptor
3 layers of tissue that form the eyeball? retina, choroid and sclera
what are 3 parts of the brain stem pons, mid brain, medulla oblongata
2 systems that help regulate body function? endocrine and nervous system
involuntary muscle that makes up the front part of the choroid iris, and ciliary body
inflammation of brain tissue increases activity of? microglia
gray matter is gray because it doesnt have...? myelin
lack of oxygen getting to the neurons of brain can cause stroke, and cerebral palsy
does alzheimer disease have a known cause? no
Does huntington disease have a known cause? yes
Spinal cord extends from? to? occipital bone to the bottom of first lumbar vertebra
pia mater, arachnoid matter, and dura mater are part of? the meninges
axons carry nerve impulses away from the cell body
are there more chemoreceptor special senses or photoreceptor special senses chemoreceptor
sense of taste is a chemoreceptor and is genereated by cells in the taste buds called gustatory cells, there are 4 primary tastes
sense of smell the olfactory receptors are very sensitive, and it is a chemoreceptor
sclera the white of the eye
vitreous humor is found in...? the posterior chamber of eye
The photoreceptors of the eye are... the rods and cones
Newborns are given antibiotic eyedrops because... there can be infection causing organisms in birth canal
The organ of Corti is the organ of hearing
Much of sense of taste is actually sense of smell
olfactory receptors are responsible for... sense of smell
The sense organ that responds to light is... a special sense organ
The back is one of the least sensitive areas of body for... sense of touch
*functions of 3 types of glia cells....1 astrocytes:glia cells that help form the blood-brain barrier
2....function of glia cell microglia:cells that act as microbe-eating scavengers in the CNS
3....fuction of glia cell oligodendrocytes:cells that make myelin for axons inside the CNS
is multiple neurofibromatosis an autoimmune response or viral infection no
corpus callosum connects R and L hemispheres of the cerebrum
hyperopia far-sightedness
The cause of multiple neurofibrosis is... it is a mutation of the NF1 gene
Dopamine and norepinephrine are... catecholamines
Huntingtons disease; Alzheimers disease; has a known cause; does not have a known cause
The spinal cord extends from the base of the skull to the pelvis
If a person has blue eyes it is because... the iris is blue
The oval window separates... middle and inner ear
How many primary tastes to which the sense of taste can respond, but more are likely to be discovered are there? 5...salty, sour, sweet, bitter, and umami
Created by: aklecha



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