The outer ear consists of the pinna also called the auricle, ear canal and eardrum. Both english and chinese terms should be introduced. The ear is the organ found in animals which is designed to perceive sounds. The outer hair cells are arranged in three rows and inner hair cells are arranged in single row.
Human ear human ear tympanic membrane and middle ear. Lets see how our ears convert back and forth motion of air into a beautiful experience we call sound. Learn about the ears function in the body and test and. Lets try to understand the different parts of human ear in detail. Let us have an overview of the structure and functions of the human ear. The human ear ossicles, despite their very tiny dimension, have long been a source of interest and fascination to. Most animals have some sort of ear to perceive sounds, which are actually highfrequency vibrations caused by the movement of objects in the environment. Sound waves enter the ear canal and vibrate against the tympanic membrane. A structure, the membranous labyrinth floats in the perilymph. Figure 1 shows the three different sections of the human ear, and figure 2 shows the various structures of each compartment of the ear in more detail. Each outer and inner hair cell have sensory hair which are specialized microvilli.
Structure and functions of the ear explicated with diagrams. It vibrates, striking the anvil to carry on the sound 5. It is mainly concerned with detecting, transmitting and transducing sound. Anatomy of eye and ear structure, functions of human eye and ear. Outer ear consisting of pinna, auditory canal and ear drum. Human ear tympanic membrane and middle ear britannica. Anatomy of eye and ear structure, functions of human eye. From slice to scab, a tabloidsized pdf file for printing and display in your classroom, showing kids how the human body deals with a cut finger. Hearing include the role of the organ of corti, without details of its structure balance include the role of maculae and cristae, without details of their structure. Outer ear pinnaauricle,auditory canal middle ear eardrum, ossicles, eustachian tube inner ear cochlea, vestibule and semicircular canal 3. The outer ear consists of the fleshy outer portion most commonly thought of when picturing the ear. The middle ear houses three ossicles, the malleus, incus and stapes and is connected to the back of the nose by the eustachian tube.
Sound funnels through the pinna into the external auditory canal, a short tube that ends at the eardrum tympanic membrane. This video is highly rated by class 9 students and has been viewed 505 times. The sense of hearing is sensitive to the sound stimuli. Tags anatomy of ear, detailed information of human ear, ear and its parts, human ear, physiology of ear, size of human ear post navigation cyberpunk 2020 pdf download free top 5 educational websites every student should visit today. Some questions you should be able to answer by the end of this lecture. The functions of the eyes and ear need not be mentioned.
Structure and functions of the ear explicated with. Ear canal nerves cochlea brain eardrum stirrup student worksheet 2 name. These middle ear bones mechanically amplify sound and compensate mismatched impedance. This structure is referred to as the auricle or the pinna and is supported by cartilage.
The human ear facts and functions of the ear an organ of. Maintaining a sense of balance is another important function performed by the human ear. As you can see in the human ear diagram, it is designed in such a way that it captures the maximum auditory stimuli from the atmosphere and transfers them to the brain for translating into hearing response. Ask a biologist ear anatomy worksheet activity author. Look no further, this bodytomy article gives you a labeled human ear diagram and also explains the functions of its different components. In this article we will discuss about the structure and function of human ear with its suitable diagram. Please note this product is licensed for personal use, classrooms, for small craft businesses where you are hand making items or hand finishing printed. The ear catches sound waves and converts it into impulses, that the brain interprets, making it understandable and helps the human body differentiate between different sounds. Gross anatomy of the middle ear boundaries,contents and functions animation duration. The human nose structure and function is of special interest for the biology students. Part ii sound passes through the tympanic membrane, vibrates. Aug 09, 2015 human ear and physiology of hearing 1. In this article, we will focus on the structure and anatomy of the human ear.
How does the ear work and what are its functions a plus topper. Human ear is most sensitive to sound frequency ranging between 1500 and 3000 cycles per second or hertz. The external ear is the visible portion of the ear, and it collects and directs sound waves to the eardrum. The peripheral hearing system consists of three parts which are the outer ear, the middle ear and the inner ear. The structure of the ear is important to the process of hearing. Hearing is a familiar and important human sense that is a topic naturally of interest to those who are curious about human biology. Describe the structure and state the functions of the different parts of the human ear. The outer ear the pinna, also called the auricle, is part of the outer ear and the most visible portion figure 42. The anatomy of the human ear comprises three major parts, namely, the outer ear, middle ear, and inner ear. This free course will enable you to relate what you read to your own sensory experiences and indeed many of the questions asked have exactly that function. The ear was actually an earshaped cartilage structure grown by seeding cow cartilage cells into a biodegradable earshaped mold and then implanted under the skin of the mouse. Then, ask a few students to name each part in english. Every structure of the ear has their own functions and are very important.
The human nose is the most protruding part of the face. Nose is the most prominent and perhaps the first attractive feature of the face. The middle ear enhances the transfer of acoustical energy in two ways. Sep 06, 2016 human ear structure and function we have just learnt how sound vibrations from a source propagate through the air and reach our ears. The ear 22 may 20 lesson description in this lesson we. Look at the structure and functions of the parts of the human ear. It will be easy that your jaw pain in addition to chest strain has a benign explanation, or at least one that is absolutely not linked with coronary disease. The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum which separates the nostrils and divides the nasal cavity into two. The overall anatomical structure of the human ear and its division in three functional parts are shown in figure 81.
Learn about the ear s function in the body and test and. Ear anatomy in telugu human body parts names in telugu pdf archives anatomy human categories. Sound waves hit the ear drum, causing it to vibrate like a drum. Oct 26, 2016 apr 03, 2020 structure of human ear sound, cbse class 9 science class 9 video edurev is made by best teachers of class 9. But nevertheless, apart from the obvious of eyesight and hearing they are responsible for various other activities. The pinna and external auditory canal form the outer ear, which is separated from the middle ear by the tympanic membrane. Wondering what is the structure of the human ear, and how it performs the function of hearing. It bears the nostrils and is the first organ of the respiratory system. Image result for ear structure without label ear anatomy. Middle ear itself eustachian tube mastoid air cell system. It is also the principal organ in the olfactory system. The ear consists of three partsexternal, middle and internal. The ears ability to do this allows us to perceive the pitch of sounds by detection of the waves frequencies, the loudness of sound by detection of the waves amplitude, and the timbre of the sound by the detection of the various frequencies that make up. There is a body cavity on each side enclosed in the hard periotic bone which contains the perilymph.
The human ear is one of the more remarkable parts of the human body, not only because of the beauty and unlikelihood of its structure, but also because of its remarkable sensitivity to sounds. From an anatomical point of view, the ear is conventionally and conveniently divided into three parts. Jan 18, 2018 organ of corti is an organized structure consisting of hair cells and supporting cells. Its major function is to capture and direct sound waves into the ear canal. Let us now discuss how our ears actually hear these sound vibrations.
The human ear is made up of three main parts, the outer, middle, and inner ear. Jun 26, 2015 gross anatomy of the middle ear boundaries,contents and functions animation duration. Human ear, organ of hearing and equilibrium that detects and analyzes sound by transduction or the conversion of sound waves into electrochemical impulses and maintains the sense of balance equilibrium. In some animals they function to direct the pinna towards the direction of a sound source, in humans they are mostly redundant. We describe the function of the ear in hearing and balance. The ear s ability to do this allows us to perceive the pitch of sounds by detection of the waves frequencies, the loudness of sound by detection of the waves amplitude, and the timbre of the sound by the detection of the various frequencies that make up. The ear is another extraordinary organ of the house of wonders, that is, the human body. Ppt the human ear and hearing powerpoint presentation. Pinna outer portion of ear used to collect sound waves 2.
The thin semitransparent tympanic membrane, or eardrum, which forms the boundary between the outer ear and the middle ear, is stretched obliquely across the end of the external canal. Your challenge is to write the correct name for each part. Organ of corti is an organized structure consisting of hair cells and supporting cells. Each part of the ear is again made up of different components. The human ear, like that of other mammals, contains sense organs that serve two quite different functions. The organ has two chambers which divide in proportion by a septum.
Acoustic energy, in the form of sound waves, passes pinna, ear canal. The middle ear is a chamber located within the petrous portion of the temporal bone. Discuss the adaptations of the various parts of the ear for their functions. Three major parts of a human ear are the outer, middle and inner respectively, each having its own functions, anatomy. The middle ear is a small, airfilled space containing three tiny bones called the malleus, incus and stapes but collectively called the ossicles. Structure of human ear mechanism of hearing youtube. Pdf on feb 23, 2017, ghada m wageih felfela and others published ear anatomy. Just as the eyes turn certain wavelengths of light into images, so the ear turns certain wavelengths of vibration into sounds. All three parts of the ear are important for detecting sound by working together to move sound from the outer part through the middle and into the inner part of the ear. Cut out the three diagram pieces and tape them together to make one long strip.
The anatomy of ear consists of external ear, middle ear and inner ear. The shapes of ear structures help to funnel sound waves from the outside environment into the inner ear. In this article we will discuss about the structure and functions of human ear. Human ear, organ of hearing and equilibrium that detects and analyzes sound by transduction and maintains the sense of balance. Anvil gets hit by the hammer, striking the stirrup 6. The human ear explains the auditory mechanism of hearing, working of three portions outer ear, middle ear, inner ear in human ear which converts. Bhanu prakash usmle, fmge and neet pg 28,066 views. However, young adult ears are responsive to extremes of sound frequencies from 20 to 20,000 hz.
Worksheets are ear anatomy activity, human ear and sense of hearing work, the human ear, whats in your ear work, the human ear, student work 2 name im all ears, whats in your ear work answers, teachers guide hearing grades 3 to 5. May 14, 2016 our content consists of the entire 9th standard syllabus in a fun learning method with various sounds and animations. The membranous labyrinth consists of three semicircular ducts, utricle, saccule, endolymphaticus and cochlea. You could have stomach upset which often can cause chest muscles discomfort coupled with chin pain coming from a dental issue such as tmj. The area of the eardrum is about 17 times larger than the oval window.
The middle ear houses three ossicles, the malleus, incus and stapes and is connected to the back of. Middle ear consists of ear ossicles malleus, incus, stapes, oval window, round window and inner opening of the eustachian tube. The human ear consists of the outer ear, middle ear, and inner ear. Finally, we describe the cause and state the treatment of various hearing defects. The outer ear gathers sound and allows it to pass through the ear canal to the eardrum. In fact, the ear is also responsible for maintaining your equilibrium or balance.
To know more about the structure of eye and ear, visit byjus. In this live gr 12 life sciences show we take a look at the human ear. Human ear anatomy parts of ear structure, diagram and ear. Fold the strip along the dotted lines so that the ear is facing outward. How does the ear work and what are its functions a plus. Ear anatomy in telugu human body parts names in telugu pdf. It sets three ossicle bones malleus, incus, stapes into motion, changing acoustic energy to mechanical energy. Structure of human ear definition, examples, diagrams. Ear drum membrane that sends sound waves to hammer 4. Displaying all worksheets related to the human ear.
Structure of human ear sound, cbse class 9 science class 9. The ear was actually an ear shaped cartilage structure grown by seeding cow cartilage cells into a biodegradable ear shaped mold and then implanted under the skin of the mouse. Cochlea the hearing part containing receptor for hearing is located here. Human ear structure and function we have just learnt how sound vibrations from a source propagate through the air and reach our ears. The ear can be broadly classified into three parts. In this lesson we describe the structure and state the functions of the different parts of the human ear. Describe the changes that occur in the human eye for each of the following. Use a model of the ear, together with a chart showing the ear structure, to introduce the different parts of the ear. Anatomically, the ear has three distinguishable parts. It does this through a system of many parts, including. The human ear is an astounding transducer, converting sound energy to mechanical energy to a nerve impulse that is transmitted to the brain. Human ear anatomy parts of ear structure, diagram and.
Each ear is additionally divided into three functional parts. The human ear and hearing 1 the human ear and hearing 2 initial experiments on the frequency sensitivity of the human ear. A more detailed but more schematic picture of the ear structures is shown in figure 810. Webmds ear anatomy page provides a detailed image and definition of the ear as well as an overview of ear related health problems. It is as per the current syllabus and helps explain each chapter in detail. Read this article in hindi to learn about the structure of human ear with the help of suitable diagrams. Gross structure of the cranium, middle ear space, and inner. The vacanti mouse was a laboratory mouse that had what looked like a human ear grown on its back. The outer ear is called the pinna and is made of ridged cartilage covered by skin.