Anatom3DQuadrangular membrane
Membrana quadrangularis · Čtyřhranná membrána
Joints & cartilage
Looks like
A thin sheet of connective tissue on each side of the upper voice box, from the epiglottis to the small arytenoid cartilages.
What it does
Forms the walls of the upper larynx; its free lower edge makes the false vocal folds.
Keeping it well
It acts as a barrier that limits the spread of cancer in the upper larynx, which surgeons use when planning.
Related conditions
- Croup & epiglottitis
- Gout
- Haemophilia & bleeding disorders
- Head and neck cancer
- Laryngitis & voice disorders
- Lyme disease
- Marfan syndrome & connective tissue disorders
- Osteoarthritis
- Psoriatic arthritis
- Rheumatic fever & rheumatic heart disease
- Rheumatoid arthritis
- Systemic lupus erythematosus
- Temporomandibular joint disorder