Sound and Smell

Basically how sound travels through the ear is a process of many steps. The sound waves are gathered by the pinna and then funneled into the meatus. Those waves then begin to vibrate the tympanic membrane which in turn hits against the malleus. The ossicle bones then vibrate like a chain reaction. The footplate will hit the oval window which triggers the fluid in the cochlea to move. The movement sways across the different hair cells creating impulses that are sent to the brain through the eighth cranial nerve.

The purpose of this project is to experiment if smell affects taste. In the hypothesis it is stated that when the nose is plugged the taste of a jellybean will

The physiology of hearing starts with a vibration that occurs in the air which sends an acoustic signal to the ear drum. The signal is transduced into a mechanical signal that transmits through the inner ear and the cochlear nerve. Finally, the signal is

Sound waves are nothing more than an energy transfer through a medium be it through a liquid, solid, or a gas. Sound pressure or intensity is measured on logarithmic scale in decibels dB which increases on an order of magnitude. For instance a quiet conversation would be around 30 dB and whereas the human pain threshold would be just over 100 dB. While the pitch or frequency of the sound is measured in hertz or Hz, the higher the hertz the higher the pitch of the sound and vice versa (Hildebrand, 2004).

Tastes and smells are the perception of chemicals in the air. The close relationship with smell and taste helps people perceive the flavors of food. Anyone with a cold has experienced that moment where they can not perceive the flavors of food because their smell has been “impaired” due to a stuffy nose. Taste itself is focused chemicals that have sweet, salty, sour, bitter, or savory taste. “The sense of taste influences food

Senses airborne chemical molecules • Related to memories & emotions • Consists of 10 million rods embedded in the olfactory epithelium – responding to different chemicals

affects taste at all or just a little bit to weather smell is needed at all when tasting food if the smell effects when someone eats or if the smell makes that person hungry. Both sense of

Sound is usually something that people usually take as something simple. However, sound can be a very complicated topic. Sound is a wave of vibration (called a longitudinal wave) caused by a release of energy.

Sound is a very interesting topic that many people do not fully understand. There are lots of questions on why or why not we can hear certain things and how do we process different sounds and vibrations. The first thing that is important to know before getting into all the details is that sound is release of energy and the energy is released in the form of vibrations. Then , the vibrations will emit from whatever has made the sound in what is known as a longitudinal wave. A longitudinal wave is a wave that travels in a sing direction.

The ear is made up of three parts: the outer ear, the middle ear and the inner ear. The outer ear is responsible for collecting the sound wave, the middle ear increases the sound energy and transmits the sound to the inner ear and finally the inner ear transforms the sound waves into nerve impulses and sends them to the brain. When the sound wave passes the ear canal there is a vibration in the eardrum which affects 3

As the hearing is one of the most important ability a person can have it has a great deal of benefits. This allows an individual to hear sounds from a mechanical wave which is then transferred to stimulate the hearing organs inside the body. The mechanical wave is only able to transfer energy through a medium, the two types of waves that associate with the mechanical is both the longitudinal and the transverse wave.

There are various factors that can affect the sensitivity of our nose towards the odorants. Human, in fact, has an extraordinary superb sense of smell. We can sense the smell of sweat when we are in fear. We can detect and identify an odorant even at an extremely low concentration. We can also improve our sense of smell by practicing. (Sela & Sobel, 2010)

What is a sound wave? A sound wave is produced by a mechanical vibration, such as a tuning fork. The vibrating object causes the surrounding medium, such as air, to vibrate as well.The wave travels through the medium to a detector, like your ear, and it is heard.As with any type of wave, a sound wave is also described by it's wavelength, amplitude, period, and frequency.

The first reason that this statement is false is because there is a large number of genes dedicated to olfactory sense. Shubin states that 3 percent of a genome is for olfactory sense. This is a large percentage of the entire genome to have dedicated to one thing when looking at all of the things a genome needs to code for (gender, height, eye color, hair color, ect.). Having this many genes coding for the sense of smell suggests that this sense is very important for an organism's survival, or that it was at one point in time. The second part of this statement is also false because, although the number of olfactory genes is the same in all organisms capable of detecting smell, olfactory genes are not the same in all organisms. This is known

The ears are one of the most complex and interesting systems thats human body has and the sounds we hear are actually in many different parts deflected, absorbed, and also filtered by our different body parts. It's then collected by our pinnae (the external part of or ears), whose dimensions further affect the sound on its way into ear. There, vibrations are translated into signals, which are interpreted by your brain. In the 1930s, two scientists at Bell Labs, Harvey Fletcher and Wilden A. Munson researched this process and what they discovered has changed and affected how we as humans understand the hearing process.