Otosclerosis is a condition that results in irregular ossifi

Otosclerosis is a condition that results in irregular ossification bone formation around the stapes bone. expect this to result in conductive or in hearing loss? What results would you expect from the and Weber tests in an individual with? The of the tongue respond to (sugars), metal ions (salary tastes), alkaloids (bitter tastes), and acids(sour tastes). Which type of receptor do you think is most sensitive? Why? The sensory homunculus is a small figure of a man whose body parts are represented in proportion to the amount of the cortex dedicated to them. Parts of the body that are well represented in the cortex are drawn as larger, and those that are poorly represented in the cortex are drawn as smaller. Which areas of the body do you think would be larger on the homunculus? Which areas do you think would be smaller? Explain your reasoning.

Solution

5.Otosclerosis in this case will result in conductive hearing loss.The conductive hearing loss is the primary cause during which sound reaches the ear drum but cannot be transferred completely by the middle ear (in this case due to irregular ossification of stapes bone present in middle ear) via the ossicular chain to reach the inner ear or cochlea.

For Renne test:

For Weber test:

6.The receptors to alkaloids that are bitter in taste are most sensitive.These receptors are G protein coupled receptors known as Gustducin that use secondary messengers that help amplify the signal and thus increase the sensitivity.

7. The areas of the body corresponding to the hands, feet, genitals and lips would be larger as large areas of cortex are used for these parts and these organs are provided with more sensory neurons to make controlled movements such as speech in comparision to other body parts.Areas of the body corresponding to hip, knee, trunk,ankle, toes ,shoulders, elboe and wrist would be smaller as small areas of cortex are used for these parts and these body parts make large and precisely less movements.