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23 Cards in this Set
- Front
- Back
The first cranial nerve is a sensory nerve consisting of thin fibers running from the olfactory mucosa to olfactory bulb
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olfactory nerver
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Destruction of this nerve results in inability to detect odors
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olfactory nerve
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the second cranial nerve is a sensory nerve which carried information about the visual world from the eye to the brain
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optic nerve
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This nerve forms a chiasma at the base of the brain
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optic nerve
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In the ________ some of the fibres from the left eye cross to the right eye of the brain and some of the fibres do not cross in this way
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optic chiasma
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Damage to this tract causes partial blindness in both eyes
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Optic Tract
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Damage to these nerve fibres between the retina and the optic chiasma cause blindness in one eye
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Optic Nerve
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Once the optic nerve fibres go caudal (below) the optic chiasma, they are referred to as this
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Optic Tract
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A motor nerve some of whose fibres control the activity of muscles that turn the eyeball in its socket.
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oculormotor nerve
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APs passing outward in others of the fibres of the third nerve cause (via a synapse and a second neuron) the pupils of the eye to ________
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constrict
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this happens to the pupils whenever the eye is exposed to a bright light
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constriction
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Fibers of this nerve also control a tiny muscle which changes the shape of the lens in order to focus sharply the images of objects located at various distances from the eye
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Oculomotor nerve
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This nerve shares with the oculomotor and abducens nerves the function of controlling the extraocular muscles
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trochlear nerve
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This nerve is not visible on the ventral surface of the brain but can be found emerging just behind the inferior colliculus
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trochlear nerve
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This nerve contains both sensory and motor fibers
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trigeminal nerve
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the main portion of this nerve, which is split into three divisions, carries sensory information from the skin, muscles, and other structures of the head such as the bones and teeth
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trigeminal nerve
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a dentist can reduce or abolish the pain produced by drilling in teeth by injecting a local anesthetic into the vicinity of branches of this nerve
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trigeminal nerve
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This type of drug blocks the passage of nerve impulses
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local anestetics
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the sensory branches of this nerve includes a motor nerve which runs to the jaw muscles to control biting and chewing
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trigeminal nerve
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This is a pure motor nerve which together with the oculomotor and the trochlear nerves, controls, the movements of the eye
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Abducens
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This is a mixed nerve, carrying sensory fibres for taste from the tongue as well as motor fibers to the muscles of the face
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facial nerve
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movements such as winking or smiling depend upon this nerve being intact
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facial nerve
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other motor fibres run to the salivary glands and tear glands to produce, respectively, salvation and the secretion of tears in this nerve
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facial nerve
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