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Showing posts from November, 2011

Ear Medical Terminology - Lesson 282

In the free medical transcription course lessons, we are going to learn next about ear medical terminology words now. In the last lesson, we have learnt about auditory meatus, auditory nerve fibers, auricle, cochlea, and cerumen. In this lesson, we will learn about other ear medical terms, such as, endolymph, eustachian tube, malleus and incus bones, labyrinth, and organ of Corti. Ear Vocabulary Now we will see about endolymph and labyrinth and organ of Corti now in the lesson of ear medical terminology . Endolymph: This is a fluid like material present in the labyrinth part of the ear. Endolymph is in the inner ear. Labyrinth: In the inner ear, there are canal like structures. These canals contain other structures such as cochlea, saccule, utricle, and semicircular canals. Labyrinth looks like a maze. Organ of Corti: This part of the inner ear is a sensitive receptor of sound waves. Organ of Corti is found in the cochlea. Ear Ossicles: They are the smallest bones

Medical Term for Ears - Lesson 281

In this post, we are going to learn about medical term for ears. I am going to provide a list of vocabularies related to the sensory organ ear and it will provide you support to know about new medical terminologies. The meanings of each medical term is given as short definitions for your easy understanding. In everyday medical transcriptionist life, you could hear these terminologies when you do practice or live files from physicians. Anatomical Vocabulary: In this lesson of  medical term for ears, we will see the meanings of what is auditory meatus, auditory canal, auditory tube, auditory nerve fibers, auricle, cochlea, and cerumen. The rest of the medical terminologies related to the sensory organ ear will be included in the next lesson next week. Now we will see the meanings one by one. Okay. Medical Terms and Meanings:  Auditory Meatus:  Each ear consisits of internal auditory meatus and external auditory meatus. External auditory meatus is a tube in the ear that runs fr

Equilibrium and Inner Ear - Lesson 280

In this post, we will learn about inner ear equilibrium . We all know already that human ear has three parts, such as, outer ear or pinna, middle ear, and inner ear. Each ear has its own significance in sending sound waves from our surroundings to the brain. The inner ear is an important area in maintaining equilibrium in the brain. What is equilibrium? Equilibrium is the feeling of balance. Balance of being is maintained by the inner ear. If one is off balance, then that state is called dizziness. Dizziness is purely a physical state and this equilibrium is maintained by three canals in the inner ear. Now we will see in detail about this now. Inner Ear Equilibrium Problems: Inner ear has three organs that are responsible for balance. The name of these three semicircular tubes are semicircular canals, saccule, and utricle respectively. These three tubes contain a liquid named as endolymph and small sensitive hair like cells inside it. When we move head, this liquid is fluctuate

Functions Of The Ear -- Lesson 279

In this post we would learn about the functions of the ear. Generally the ear can be divided into three separate regions. They are 1. Outer ear, 2. Middle ear and 3. Inner ear. These outer and middle ears function in the conduction of sound waves through the ear. The inner ear contains structures that receive the auditory waves and relay them to the brain. The auditory or estachian tube is a canal leading which is from middle ear to the pharynx. In an efficient way, this tube can prevent damage to the eardrum and shock to the middle and inner ears.  The pressure of air in the middle ear is equal to the pressure of the air in the external environment. Functions of Middle Ear: Whenever we speak the outer ear collects the sound waves and sends them through the auditory canal. That is the vibrations are carried through the auditory canal to the eardrum. Then this vibrations goes to the middle ear. The smallest bones which are in the middle ear converts this vibrations in the air into

Ear Functions and Structure - Lesson 278

In this post, we are going to learn about ear functions and structure . This lesson begins the ear anatomy and physiology lessons. In the future posts, we will learn about human ear anatomy and physiology. As per the passage of sound waves from the ear to the brain, we can divide the ear structure into four divisions, such as outer ear, middle ear, inner ear or labyrinth, and brain. The outer ear consists of pinna, external auditory ear, and tympanic membrane. The middle ear consists of malleus, incus, stapes, and oval window. The inner ear or labyrinth consists of cochlea, auditory liquids and receptors, and auditory nerves. In the brain, the ear is connected with cerebral cortex. We will learn about each of these parts of the ear one by one now. Ear Functions and Structure:   Outer Ear: Any sound waves from our surrounding will enter into the outer ear first through the muscle part called pinna or auricle, outside the ear, which projects outside the ear. Auditory canal is extend

Laser Eye Surgeries - Lesson 277

In this post, we will see about the eye treatment procedures, such as vitrectomy, keratoplasty, laser photocoagulation, and scleral buckle methods. Keratoplasty surgery is a method of transplanting the cornea inside the eye. This surgical process is also known as corneal graft method. In this method, the cornea is replaced with a normal cornea that can transparent well and so the vision is restored. If the cornea is replaced entirely, the surgical process is named as penetrating keratoplasty. If the cornea is replaced partially only, then the process is called as lamellar keratoplasty. The cornea is donated if a man orwoman dies by accidents or any other reason and they donate their cornea with their own consent. In laser photocoagulation method, many eye diseases are treated. In this, the blood vessels inside the eye is cauterized using laser light waves. The laser light used in this method is known as argon laser beams. These beams stimulate the blood vessels inside the eye.

Cataract Refractive Surgery - Lesson 276

In this lesson, we are going to study about cataract of the eyes. As a free medical transcription course learner, you should all know about cataracts of the eye. The dictators will dictate about cataract in dictation files in the surgical history of the patient or about the surgery files about cataracts etc. You should know about what is cataract and what are the surgical methods to remove cataracts. The reasons for cataract is a change in the protein structure, as well as the water stuff inside the lens. Changes in the protein affects the clarity of the vision. These changes in the crystalline lens create clouding in the eyes. Cataract is a disease. In the cataract disease, the lens is the primary thing affected by clouding process, from its normal clarity. Cataract affects the retina to focus the light rays on the lens. Cataract means waterfall in the latin language. Some patient with cataract would also have diabetes and they may meet complications while the physician decides to d