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: Certain drugs that relieve pain also relieve which of the following? A. Itch B. Attention deficit…

A: Pain-relief drugs are a class of medicines aimed to manage both acute or chronic pain. They either…

Q: Which of these locations in the forebrain is the master control center for homeostasis through the…

A: The control and coordination of the body in humans occur by two systems: the nervous system and the…

Q: The lens of the eye a. may turn opaque and cloudy with age  b. may be removed and replaced with an…

A: The eyes in humans are sensory organs that enable the human vision. It is a paired structure that…

Q: Emergency room doctors often shine a light into the eyes of patients with potential trauma to the…

A: Pupillary light reflex is used to measure the brain stem function. Abnormal reflex can be found in…

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…

Q: A ganglia refers to A. a collection of neural cells that lie outside the central nervous system B. a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1. Effects of the sympathetic stimulation include all, except ___. A. increased digestive system…

A: Two antagonistic and anatomical separated divisions comprises the autonomic nervous system (ANS).…

Q: The following statements are true regarding shingles, except a. the condition is caused by a…

A: Shingles or herpes zoster is a type of viral disease which is characterized by blisters and painful…

Q: Mr. Pitt was diagnosed with presbyopia, which is characterized by a. a reduction in accommodative…

A: Presbyopia is a condition where an individual is unable to focus properly on nearby and distant…

Q: MRI of a 36-year-old woman in a car collison indicates a lesion in the flocculonadular lobe. Which…

A: The flocculonodular lobe is a lobe of the cerebellum consisting of the module and the thin…

Q: Which of the following statements is correct A. The innermost layer of the retina contains mainly…

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

Q: Match the function or definition to the structure: _____  A.  Lens…

A: Many sense organs are located in the head region. The sense organs that aid in perceiving visual…

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

A: "The nervous system" of all animals is made up of unique cells known as neurons, which serve as the…

Q: 1. Hydrocephalus is caused by: a. the osmotic flow of water in the brain     b.  obstruction of…

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

Q: Strokes are often caused by ________. a. neurodegeneration b. blood clots or burst blood vessels c.…

A: Stroke symptoms include:  Paralysis Numbness or weakness in the arm, face, and leg, especially on…

Q: Which of the following statements is/are true about rods? i. They are highly sensitive to…

A: Eye is camera like structure which is meant to visualize and see objects . It comprises of :-  A )…

Q: __________ are tactile receptors that are located just beneath the skin and respond to changes in…

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

Q: Fill in the blank for A and B A. The vagus nerve is a so-called cranial nerve- it exists and enters…

A: A nerve is a bundle of many nerve fibers, or axons, that are bound together by connective tissue and…

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: 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…

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

A: A condition that permanently or temporarily affects the physical functions, mobility, dexterity, or…

Q: 1. The _______________ is the way by which the CNS determines stimulus intensity. a. action…

A: Sensory neurons transport information from sensory receptors to the central nervous system (CNS),…

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: An examiner shines a bright light into the patient's left eye. The left pupil constricts and dilates…

A: The eye is a vital organ that allows us to see. It is capable of detecting light, seeing, and…

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: Match the term on the left with its correct description in the column on the right. _____ Amygdala…

A: In humans, the nervous system is the complex system that consists of brain and network of nerves…

Q: Choose the action of the cranial nerve and write the letter next to the cranial number. ____ I. A.…

A: Cranial nerves are pairs of nerves that connect  brain to different parts of  head, neck, and trunk.…

Q: Headache is not always related to an underlying neurological dysfunction. It may also be caused by…

A: Headaches are a reasonably normal condition that almost everyone will have at some point in their…

Q: In farsightedness, also known as _______________, the focal point is _____________ the retina. a.…

A: The principle of the nervous framework verifies that it is a complex part of a creature that…

Q: Which of the following could result in theDens fracturing and/or stabbing into the medullar…

A: The odontoid process is also known as the dens, which is a protuberance of the axis. Hanging is the…

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

A: The "brain" is organized into two types of tissue: grey matter, which is composed of mixed neuronal…

Q: A 10-year-old girl with Type I diabetes develops a neuropathy limited to sensory neurons with free…

A: Type1 diabetes is also referred to as Juvenile diabetes or insulin-dependent diabetes. In this…

Q: If you slammed your finger in a car door, it would stimulate _____ pain fibers. Group of answer…

A: Pain is an unpleasant sensation that develops when an individual touches a hot substance,…

Q: B. stage 2

A: 1. During stage 2 sleep , the sleeper's muscles begin to slowly contract and relax as the sleeper…

Q: name the structure a. ventral root b. anterior white column c. posterior/ dostal root d. posterior/…

A: The groups of nerve fibers linking the spinal cord are called spinal nerves. Spinal nerve transfer…

Q: Tina has had the flu for the past 4 days. It has been the most horrible feeling of her life.…

A: Flu is a respiratory illness and is caused by a virus. The symptoms of flu are very intense . the…

Q: Match the image letter showing cranial nerve dysfunction to the appropriate cranial nerve. A.…

A: Cranial nerve- These are the 12 nerves that control facial functions like the movement of the eye,…

Q: An expanding tumor in the ventral posterior thalamus is most likely to injure what pathways in the…

A: The cerebral hemisphere's internal capsule is a component that is present in the white matter of the…

Q: Match the brain area to its correct blood supply…

A: The blood supply to the cerebrum is divided into 3 paired arterial branches, they are: Anterior…

Q: Which of the following treatments for glaucoma has been shown to increase the duration of action of…

A: The correct option is A.