Define voice box class 8

Alicia Keys or Taylor Swift. Justin Bieber versus Usher. What makes one voice sound different from another?If you’ve spent any time in a chorus class, you know that there are different vocal categories or types (soprano, tenor, bass, etc.)… but what makes up a category? Well, a soprano is a soprano because they can sing high and a bass is a bass because they sing low, right? Not really... You might think that when it comes to voice types, everything depends on vocal range. Yet the actual notes a person can sing are only a small part of what determines their vocal category. A huge deciding factor is a concept known as timbre, or tonal quality. Timbre is entirely different from a musical note: A note (or pitch) refers to the place a single sound falls on a scale, while timbre is the phenomenon of the specific color or texture of a voice. Right about now, you’re thinking, “Color? Texture? How can those ideas apply to sound? I can’t see a voice and I certainly can’t touch one.” And you’re right–––you can’t. Voices are subtle and invisible things. Even the experts agree there is very little “science” involved when deciding what makes one voice so different from the next. It’s almost like asking someone to explain how one cloud differs from another; that is, it’s nearly impossible. So what do vocal professionals do when they have to describe something as seemingly indescribable as the human voice? They call on their other senses for help. Singers, voice teachers, and other vocal...

The Medical Term for Throat The medical term for the throat is pharynx. The pharynx is a long tube that connects superiorly (towards the top) to the • Nasopharynx: The superior portion of the pharynx that connects to the nose • Oropharynx: The middle portion of the pharynx that connects to the mouth • Hypopharynx: The inferior portion of the pharynx that splits into the esophagus and larynx Pharynx is the medical term for the throat. Additional medical terminology relating to the throat includes: • Gastroesophageal Reflux Disease (GERD): Contents of the stomach backtrack into the esophagus and, sometimes, throat • Strep Throat: A sore and scratchy throat caused by a bacterial infection • Dysphagia: Difficulty swallowing • Tonsillitis: Inflammation of the tonsils located at the back of the throat Surgical Procedures for Throat Major throat conditions that often require surgery include: • Pharyngeal cancer: cancer of the nasopharynx, oropharynx, and/or the hypopharynx • Retropharyngeal abscess: a bacterial infection at the back of the throat. An abscess is a collection of pus. • Tracheal stenosis: a hardening and narrowing (stenosis) of the throat opening The following surgical procedures are used to treat the aforementioned conditions: • Pharyngoplasty: Surgical repair of the pharynx. • Bronchoscopy: A long tube with a light and camera is inserted into the mouth and throat primarily for diagnostic purposes. The word ending -scopy means "to examine or observe." • Abscess inc...

Voice box: The We use the larynx when we breathe, talk, or swallow. Its outer wall of The vocal cords are two bands of Each time we inhale (breathe in), air goes into our When we talk, the vocal cords tighten up and move closer together. Air from the lungs is forced between them and makes them vibrate, producing the sound of our voice. The The

Sound Class 8 Extra Questions Science Chapter 13 Sound Class 8 Extra Questions Very Short Answer Questions Question 1. What does voice box or larynx of human produces? Answer: Sound Question 2. In which medium sound propagates the maximum? Answer: Solid Question 3. Name the sound producing organ in human. Answer: Larynx Question 4. What is vibration? Answer: Back and forth motion of an object. Question 5. Do all bodies produce sound? Answer: No Question 6. How is sound produced? Answer: By vibrating bodies. Question 7. Name a musical instrument which produces sound by blowing air into it. Answer: Flute Question 8. What is the unit of frequency? Answer: Hertz Question 9. What do you mean amplitude? Answer: Vibrations produced by vibrating body in one second is known as amplitude. Question 10. What is the maximum displacement of an oscillating object is called? Answer: Amplitude Question 11. How does sound help us? Answer: Sound help us to communicate. Question 12. What is the unit of loudness? Answer: Decibel (dB) Question 13. What is audible sound? Answer: Frequency between 20 Hz to 20,000 Hz is audible sound. Question 14. In which medium sound travels faster? Answer: Solid Sound Class 8 Extra Questions Short Answer Questions Question 1. A simple pendulum makes 20 oscillations in 40 seconds. What is the time period and frequency of its oscillation? Answer: Time period = \(\frac\) (c) Distance travelled × Time (d) Time + Distance travelled Question 11. A pendulum oscillates...

Throat anatomy The throat includes the esophagus; windpipe, also known as the trachea; voice box, also known as the larynx; tonsils; and epiglottis. Throat cancer refers cancer that develops in your throat (pharynx) or voice box (larynx). Your throat is a muscular tube that begins behind your nose and ends in your neck. Throat cancer most often begins in the flat cells that line the inside of your throat. Your voice box sits just below your throat and also is susceptible to throat cancer. The voice box is made of cartilage and contains the vocal cords that vibrate to make sound when you talk. Types of throat cancer Throat cancer is a general term that applies to cancer that develops in the throat (pharyngeal cancer) or in the voice box (laryngeal cancer). Though most throat cancers involve the same types of cells, specific terms are used to differentiate the part of the throat where cancer originated. • Nasopharyngeal cancer begins in the nasopharynx — the part of your throat just behind your nose. • Oropharyngeal cancer begins in the oropharynx — the part of your throat right behind your mouth that includes your tonsils. • Hypopharyngeal cancer (laryngopharyngeal cancer) begins in the hypopharynx (laryngopharynx) — the lower part of your throat, just above your esophagus and windpipe. • Glottic cancer begins in the vocal cords. • Supraglottic cancer begins in the upper portion of the voice box and includes cancer that affects the epiglottis, which is a piece of cartilage ...

Sound Class 8 Science Chapter 13 as per NCERT Book used in CBSE and other Schools. The lesson covers the complete explanation of class 8 Chapter 13 Sound. Topics covered are sound, types of sound, sound as wave and wave types. Also, topics like human ear, Sound produced by human and animals, Sound wave propagation through states of matter, audible and inaudible sound, noise, music, instruments and Noise Pollution have been discussed. The lesson covers all important questions and NCERT solutions to book questions have also been provided for convenience of the students. Introduction to sound transversal waves sound produced by man Types of sounds oscillation sound produced by animals mechanical wave amplitude audible and inaudible sounds Electromagnetic wave time period human ear longitudinal wave wavelength types of sounds compression velocity of wave noise pollution rarefaction characteristics of sound NCERT Book solutions Introduction to Sound Sound is a form of energy that produces sensation of hearing. We can also say that it is a form of energy and it comes from vibrations. These vibrations create sound waves which move through medium such as air and water before reaching our ears. All sounds are a combination of pure frequencies. A stretched rubber band when plucked, vibrates and produces sound. We have also heard a variety of sounds from sitar, violin, veena, ringing of temple bells, chirping of birds, vehicles honking in traffic, dogs barking, pressure cooker whistl...