Related Experiment Video
Updated: Aug 12, 2026

An Implantable System For Chronic In Vivo Electromyography
Published on: April 21, 2020
Laryngeal muscles and articulatory control
Abstract:
The present study continues earlier work on laryngeal control in speech with particular reference to adjustments in Swedish voiceless consonants and consonant cluster. Electromyographic recordings were obtained from four intrinsic laryngeal muscles together with simultaneous transillumination and acoustic signals. Results indicate that the vocalis and lateral cricoarytenoid muscles participate in the control of both articulation and phonation (F0). The interarytenoid muscle appeared to be involved only in articulatory adjustments. Activity in the cricothyroid was mostly related F0 change; however, this muscle also showed an increase in activity for voiceless sounds. In addition, the vocalis muscle appeared to participate in glottal adduction without complete closure in voiceless clusters with the lateral cricoarytenoid and the interarytenoid playing no particular roles. The results suggest the need of studying laryngeal behavior in speech within a general systems famework for movement control.
Related Concept Videos
Physiological Control of Respiration
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Mechanism of Breathing III: The Accessory Muscles
The respiratory system is a complex network that relies on primary respiratory muscles like the diaphragm, but also involves accessory muscles to enhance lung expansion and airflow during both inhalation and exhalation.
Enhancing Inhalation with Accessory Muscles:
Accessory muscles such as the sternocleidomastoid, scalene, intercostal, and abdominal muscles are crucial when additional respiratory effort is required, such as during deep...
The Hyoid Bone
Muscles for Facial Expressions
Cranial Nerves: Types Part II
Facial Nerve (Cranial Nerve VII)
Cranial nerve VII, or the facial nerve,...
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...

