What is StaPedius?
Stapedius is a small muscle in the thympanic cavity of the middle ear. It measures about one millimeter and is the smallest muscle in the human body; This would take 26 of these muscles assembled to form one inch. This small muscle connects to the neck of the smallest human bone, called Stapy. The horseshoe -shaped bone is sometimes called a stirrup. When a loud sound is heard, this skeletal muscle reflects on the head of the state to reduce excessive vibrations and protect the inner ear.
The inner wall of the tympanic cavity of the ear is the original point of Stapedius. Origin in muscle anatomy is the term for the end of the muscle attached to a relatively solid point. The insertion of the muscle indicates the end of the muscle attached to the loose bone. The neck of the light bone is the insertion of the point for Stapedius. Drawing the head of states backwards is the action of this muscle.
Nerve Support Protento muscle is secured by a facial nerve - also known as the cranial nerve VII. This nerve emerges from the brain stem between Pons and Medulla. When this facial n isErv injured or damaged, a state known as Bell's polio may occur. The paralysis of Bell's palsy can affect the muscles of the Stapedius and cause it not to work. Normal sounds can register as extremely loud, a condition known as hyperacusis.
Inner ear protection from sounds or extended exposure to sound is an important function of this muscle. If you can hear a loud or lengthy sound, such as playing weapons or playing a rock zone, StaPedius pulls the staples away from Cochle. Similarly, Maleus is pulling a tensor of tympani - also known as a hammer. This phenomenon is known as an acoustic reflex.
If a person is repeatedly around a loud sound, such as someone who runs Jackhammer, an acoustic reflection is not enough to protect the inner ear. Protection such as ear ear ear ears or ears with noise reduction can be used to reduce sound intensity. You can help Stapedius in his protective worki.
Another reflex besides acoustic reflex is associated with this small muscle. Stapedius reflex happens when people speak. This reflex reduces the vibration of inner ear and reduces the level of 20 decibels heard. If Stapedius does not work properly, one hears his own voice as a loud sound.