BIO 23806 FALL 2015 TAKE HOME EXAMINATION detergent she is using All other physi
ID: 69410 • Letter: B
Question
BIO 23806 FALL 2015 TAKE HOME EXAMINATION detergent she is using All other physical findings are within normal limits, but her oral temperature is 1006'F. She complains about being under a lot of stress because she has been helping take care of her husband, who is in the end stages disease. She has no known drug allergies, is a non-smoker, and attends a water a week. chicken pox as a child. Sarah confirms that she had chicken pox and messles during childhood for the past three months of Alzheimer's s a non-smoker, and attends a water acrobics class twice You suspect she may be suffering from a particular viral infection, so you ask if she had er answer confirms your suspicions that she is likely suffering from shingles (herpes zoster) due to varicella-zoster virus infection Short answer questions I. Define the following terms, used in the case and also in associated questions b aku vesicle c dosal d yentral e dormant 2. The list below classifies sensory receptors by the stimalus that activates them. Using your textbook or other resource, name the receptor for each stimulus type. a activated by touch, pressure, vibration, and stretch b activated by changes in temperature c activated by light or changes in light wavelengths d activated by changes in chemical concentrations in a solution e. actixated by tissue injury or situations that may lead to tissue injury 3. Based on what you know about their stimuli, which type of sensory receptor is activated and causing Sarah'ssymporas of pain and paresthesia? 4. The virus infecting Sarah lies dormant in the dorsal root ganglion. Whatl part of a neuron is located in the dorsal root ganglion? Docs the dorsal root and its ganglion carry sensory input, motor output, or both? 5. Based on the patern of skin vesicles and pain, which of Sarah's peripheral nerves is infected? To which pcripheral nerve plexus does this nerve belong? infocted by the.xinus? To which peripheral nerve plexus does this nerve belong? nerve, how would the signs and symptoms be dafferent than those she has now? 7. If Sarah had a viral infection that affected seuron function in the ventral root of the same spinal 8. If we traced the sensory pathways that carry Sarah's thigh pain up to her brain, which cerebral lobe AND which part of the cortex would be active when she feels this sensation?Explanation / Answer
Paresthesia: It refers to the abnormal sensation of the body like tickling, pricking, burning or falling asleep of feet or limb without any apparent physical cause. This is very common in feet, limb, arm and leg but can be chronic if the cause is neuronal dysfunction or poor circulation.
Skin Vesicles: These are the Blisters formed by the fluid filled sac in epidermis. There is swelling of skin and the fluid filled is mixed with blood. It can rupture easily.
The cause of Skin vesicle can be allergies, eczema or sores. They need to be taken care if chronic like severe inflammation or infection.
Dorsal: It is the part of body of an organism present toward, on, in, or near the back or upper surface of an organ, part, or organism. This is also called posterior in case of human.
Ventral: Parts of body present on the front side of the human body, or the corresponding surface of an animal, usually the lower surface called ventral. ex. chest, abdomen.
Dormant: It is stage of life in living organism(plants, animals microorganisms) in which there is minimal metabolic activity along with cessation of the growth as a consequence of either adverse condition or as a part of animal normal life cycle(like hibernation).
2. Receptor for stimulus of following :
a. activated by touch, pressure, vibrationand stretch: Mechanoreceptors
b. activated by changes in temperature - Thermoreceptors
c. Activated by changes in wavelength- Photoreceptors
d. Activated by changes in chemical concentration- Chemoreceptors
e. Activated by tissue injury or situation that may lead to tissue injury - Nociceptors.
3.Nocireceptors is activated and causing Sarah’s symptoms of pain and paresthesia
4.somatic sensory part of a neuron is located in the dorsal root ganglion.
the dorsal root and its ganglion carry sensory input.
5.fibular (peroneal) part of Sarah’s peripheral nerves is infected.
This nerve belong sacral plexus.
6.If Sarah had skin vesicles on the anterolateral region of her neck, transverse cutaneous nerve is infected by the virus
This nerve belong to cervical plexus.
7.The symptoms that are caused by affected ventral roots are the following:
Loss of movement in the extremities
Back pain
Pain radiating into the buttocks
Pain radiating down the legs
Numbness, tingling, burning of the hands or feet
Fatigue
Fever
Weakness
Sarah on the other hand had oral fever, she has a burning sensation of the thigh but no numbness . She had no allergies, not a smoker as well as take health maintenance exercise like aerobics.
8. parietal lobe would be active when she feels this sensation
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