by Josh Manuel | Apr 29, 2025 | Lexicon
The External Intercostal Muscles aid in inhalation; when contracted, they pull the ribs up and out. They originate from the inferior of one rib and insert into the superior of the rib immediately below. The anterior rami of spinal nerves from T1-T11 innervate the...
by Josh Manuel | Apr 29, 2025 | Lexicon
Expiratory Reserve Volume (ERV) is the amount of air a person can forcibly exhale beyond the normal tidal volume. Expiratory Reserve Volume is used during any passage using greater volumes of air than tidal breathing and can be essential for maintaining consistent...
by Josh Manuel | Apr 25, 2025 | Lexicon
The Eustachian tube is a narrow canal connecting the middle ear to the nasopharynx. Its function is the equalization of air pressure on both sides of the eardrum and the draining of mucus or fluids from the middle ear. This structure plays a crucial role in...
by Josh Manuel | Apr 25, 2025 | Lexicon
The epiglottis is a flap-like cartilage structure located at the base of the tongue, near the entrance to the trachea. During swallowing, the epiglottis folds downward to cover the trachea, preventing food and liquids from entering the airway and lungs. When breathing...
by Josh Manuel | Apr 25, 2025 | Lexicon
The Electroglottograph (EGG) is a device used in voice research to measure and analyze the contact and vibration patterns of the vocal folds during phonation. It consists of electrodes that are placed on the throat to detect changes in electrical conductivity as the...
by Josh Manuel | Apr 25, 2025 | Lexicon
An echo refers to the reflection of sound waves off surfaces back to the listener’s ears. It occurs when sound waves encounter a hard, reflective surface and bounce back. The time delay between the original sound and its echo depends on the distance to the...
