First (sharp) pain results from activation of ___ fibers. Second (dull) pain from ___ fibers   A. Ia, II   B. C, Ia   C. Aδ, C   D. II, Ia   E. C, Aδ   F. gamma, C

Q: auditory nerve

A: Auditory nerves and the brain Nerve impulses are transmitted from the ear to the brain via the…

Q: 01

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A: The question is asking about the location of a specific auditory neuron within the superior olivary…

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A: The eye is responsible for photosensory activity in human that sense the light stimulus. The…

Q: ____________ is a neuromodulator that blocks the conduction of pain signals by second-order spinal…

A: Neuromodulators are substances that do not directly activate ion-channel receptors but that, acting…

Q: Substance P_____ . a. increases pain-related signals b. is a natural painkiller c. is the active…

A: Answer is a.)  increases pain related signals.

Q: Glaucoma primarily causes damage to the: A. Iris B. Lens C. Optic nerve D. Cornea

A:

Q: Sensory signals for all of the following except _____ must pass through the thalamus before they can…

A: Sensory signals for olfaction/smell are carried out by the first cranial nerve called olfactory…

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A: The optic nerve pathway is a complex pathway leading to the sensation of vision. The optic nerves…

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A: The retina is a light-sensitive layer that lines the eye's interior. It is made up of rods and…

Q: C. Eye Structures Choose the structure that applies to each statement. More than one structure m be…

A: The human eye is a complex organ responsible for vision. It consists of several structures and…

Q: The ciliary body/ muscle change the shape of  the _____________.    a.sclera b.optic disc…

A: The ciliary body is a circular structure which is basically an extension of the iris. It also…

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Q: 17. Severing __________ causes lost communication between the cerebral hemispheres and the spinal…

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A: Brain and Cerebrospinal fluid  The cavities inside the brain is filled up by CSF spaces formed of…

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A: Tactile receptors are corpuscles which is a type of mechanoreceptor present in the skin. These…

Q: 18. The sympathetic neurons make up the __________ of the spinal cord between T1 – L2 segments.  a.…

A: The spinal cord is a long tubular structure made up of nervous tissue. The spinal cord along with…

Q: A site of communication between neurons is called a _________ 2. Where is the cerebral spinal fluid…

A: Neurons are also known as fundamental unit of brain and nervous system. The main function is to…

Q: 7. Which of the following is the receptor type at the autonomic ganglia? a. nicotinic b. muscarinic…

A: The many receptor subtypes include: a.Nicotinic receptors, for example, play a role in the impulse…

Q: All of the following except the _____nerve begin or end in the orbit. a. optic d. abducens b.…

A: The lacrimal, frontal and trochlear nerves, as well as the ophthalmic vein, pass through the…

Q: Aside from the lens, damage to the ________ can affect the eye’s ability to focus light. a. iris b.…

A: Cornea, iris (colored part of the eye), lens, pupil (at the center of iris), macula (part of…

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Q: Olfactory receptors project directly to the ________________ and are unique in that signals do not…

A: We can say that Olfactory bulbs are present above the sinus cavity beneath the olfactory lobes. The…

Q: 10. The sense of pain travels to the brain through this type of nerve: a. motor b. efferent c.…

A: The stimulus for any external or internal change is received via specific receptors that are present…

Q: A person with Brown Sequard at C6 would have the following problems…. a. Ipsilateral loss of pain…

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Q: 44. The bones in the middle ear are the A. labyrinth, cerumen, and the ossicles. B. hammer, anvil,…

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Q: 28. The hypothesized causes of ALS or Lou Gehrig’s disease is linked to a. glutamate excitotoxicity…

A: ALS or Lou Gehrig’s disease:- is a neurodegenerative disorder characterized by progressive loss of…

Q: Superior rectus Superior oblique Medial rectus Levator palpebrae superioris Lateral rectus Inferior…

A: Human eye is one of the vital sense organ which reacts to light and allows vision. This organ…

Q: All sensory signals except _____ travel to the _____ in the brain before the cerebral cortex. a.…

A: The sensory nervous system is a portion of the nervous system which is accountable for the sensory…

Q: INSTRUCTIONS: Label these illustrations by choosing the letter of the correct label from the given…

A: The given diagram represents the structure of the eye in the sagittal view.  Eye is the sense organ…

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Q: Noise induced hearing loss is 100% preventable. A. True B. False

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Q: 26. A person with injury to the _____________ causes the inability to produce sounds properly. a.…

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