Scientists Unveil Ear's Crucial Muscle: The Auricularis Superior
Scientists have long studied the auricularis superior, a thin, fan-shaped muscle that plays a crucial role in ear function. This muscle, one of three extrinsic muscles of the ear, draws the auricula upward and backward. It's been observed in various animals, including by renowned researchers like Ivan Pavlov.
The auricle, or outer ear, is susceptible to injuries, ranging from simple cuts to complete detachment. Despite this, it's vital for collecting sounds from the environment. The auricularis superior, along with other auricularis muscles, helps pivot the ears towards sounds of interest in many animals. In humans, this muscle arises from the temporal fascia and descends into the root of the auricle. It's innervated by the temporal branch of the facial nerve.
Understanding the auricularis superior's role is essential for treating ear injuries and diseases. Further research could shed light on how this muscle's function evolved in different animals and its potential implications for human hearing.
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