The Diagram of larynx shows its structure which consists of thyroid, cricoid, and paired arytenoid cartilage. The larynx diagram also highlights voice cords, also called vocal folds, which are made of muscles and elastic tissue. The diagram of larynx class 8 is often asked in the examinations.
The labelled diagram of larynx is given below:
Larynx Diagram Labeled
Table of Content
What is Larynx?
The larynx (or voice box), is an essential organ found in the neck area of animals, including humans. The larynx diagram shows its functions to protect the airway during swallowing, controls the flow of air to and from the lungs, and produces sound for vocalization and speech. The larynx is made up of many muscles, mucous membranes, and cartilage. It contains the vocal cords, which vibrate to produce sound as air flows through them. Furthermore, the larynx is involved in reflexive respiratory motions such as sneezing and coughing.
Also read: Difference Between Pharynx And Larynx
Larynx Anatomy
The diagram of larynx with labelling shows its structure comprised of:
External Structure of Larynx
The larynx diagram consists of external parts such as:
Cartilages of Larynx Diagram
- The larynx comprises various cartilages providing protection and support.
- The thyroid cartilage which shapes the larynx’s front and sides, is the largest cartilage present.
- Supported by the cricoid cartilage and paired arytenoid cartilages crucial for vocal cord movement.
Hyoid Bone of Larynx Diagram
- The hyoid bone, which is situated beneath the jaw and above the larynx
- Here, ligaments and muscles connected to the larynx, attach.
- Supports and stabilize the larynx, making swallowing and speaking easier.
Ligaments and Membranes of Larynx Diagram
- Vocal cords, present as elastic bands of tissue stretched across the larynx, produce speech through vibrating vocal ligaments when air flows.
- The thyroid cartilage and the hyoid bone, connected by the thyrohyoid membrane, offers stability and permits regulated movement of the larynx during swallowing and phonation.
- The interior anatomy of the larynx is further supported by other ligaments and membranes, including the quadrangular membrane and the cricothyroid ligament, which further aid in controlling airflow and sound production.
Internal Structure of Larynx
The diagram of larynx shows the internal structure comprising of following parts:
Vocal Folds and Vestibular Folds of Larynx Diagram
- Vocal and vestibular folds are two pairs of mucous membrane folds found in the larynx.
- The vestibular folds are inferior to the vocal folds, often known as the actual vocal cords.
- They are essential for phonation because sound is produced by their vibrating as air passes through the larynx.
- The genuine voice cords are situated below the vestibular folds, sometimes known as the fake vocal cords. Although they don’t directly contribute to the creation of sound, they do help to shield the airway during swallowing and coughing.
Ventricles of the Larynx Diagram
- There are tiny cavities called ventricles that lie between the vestibular and vocal folds.
- These laryngeal lateral gaps function as lubricating glands, secreting mucus to maintain the vocal folds moist and shielded.
- The voice’s quality and tone are influenced by the ventricles, which also contribute to vocalization and resonance.
Intrinsic Muscles of the Larynx Diagram
- These muscles are divided into tensors, abductors, and adductors, each controlling laryngeal functions.
- Adductor muscles bring vocal folds together for sound production, while abductor muscles help in breathing.
- Tensors regulate vocal fold tension for pitch and volume control, involving muscles like cricothyroid and thyroarytenoid.
What are the Parts of Human Larynx?
The larynx is functionally divided into three parts as visible in larynx diagram. They are:
- Supraglottis: This is the upper region of the larynx and contains the epiglottis, a cartilage that covers the opening of the larynx during swallowing.
- Glottis: This is the middle region and the narrowest part of the larynx. It contains the vocal cords which are responsible for producing sound.
- Subglottis: This is the lower region of the larynx and connects it to the trachea (windpipe).
Conclusion – Diagram of Larynx
In conclusion, the diagram of larynx shows it as a multifaceted organ that is vital for breathing, speaking, and protecting the airways during swallowing. These duties are made possible by the cooperation among its anatomical parts, which include the vocal folds, ventricles, cartilages, muscles, and ligaments. The diagram of larynx with its function helps students get a clear understanding of this organ.
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FAQs on Diagram of Larynx
What is Larynx?
The larynx is the anatomical structure commonly known as the voice box, responsible for breathing, phonation, and protecting the airway during swallowing.
What is the Function of the Larynx?
The function of the larynx is to regulate airflow, produce sound for speech, and protect the airway during swallowing.
What are the 3 Parts of the Larynx?
The three parts of the larynx are the supraglottis, glottis, and subglottis.
What is the Location of the Larynx?
The larynx is located in the neck region, between the base of the tongue and the top of the trachea.
What are the 5 Cartilages of the Larynx?
The five cartilages of the larynx are the thyroid, cricoid, arytenoid (paired), corniculate, and cuneiform cartilages.
What is the Size of the Larynx?
The size of the larynx varies, but on average, it measures about 5 centimeters (2 inches) in length in adults.
Where can I Find Labelled Diagram of Larynx Class 8?
You can find the labelled diagram of larynx at the top of the article.