Thyrohyoid is a suprahyoid muscle and it depresses the larynx , it also helps in swallowing and deglutition , some Indian books state that is an elevator of the larynx , but most literature that i have read states it to be a depressor , other depressors of the larynx are omohyoid , sternohyoid and sternothyrohyoid.
Peristaltic movement.
It is called deglutition.
It is an abnormal contraction of the esophagus, like a muscle spasm, but in your esophagus. Your esophagus contracts by muscle contractions, so this may be a cause
No, the food is moved by the muscle action of the intestines, beginning with the esophagus. The reason that the muscle-action is needed is because the coils of the intestines go in all directions, including upwards.
Smooth muscles in the wall of an esophagus move food downward with a squeezing action. These waves of muscle contractions move food through the entire digestive tract. This process is called peristalsis.
The muscles in the esophagus are primarily involuntary. The upper third of the esophagus contains skeletal (voluntary) muscle, allowing for some conscious control during swallowing. However, the middle and lower portions consist of smooth (involuntary) muscle, which operates automatically to facilitate the movement of food. This involuntary action is essential for the continuous process of digestion.
It Is the Esophagus
The process of swallowing ensures that food goes down the esophagus. When you swallow, a series of coordinated muscle contractions called peristalsis moves the food bolus from the throat into the esophagus. Additionally, a flap of tissue called the epiglottis prevents food from entering the windpipe, directing it instead toward the esophagus. This combination of muscle action and anatomical structures ensures that food reaches the stomach efficiently.
The esophagus is an organ, as it is made up of a number of tissue types working together for a purpose. Muscle is the most significant part of the esophagus, but it also contains mucosa and connective tissue.
for peristallysis
smooth muscle
The esophagus