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.

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: