What is the name of the shell -shaped structure of the outer ear? tympanic cavity cochlea pinna vestibule Question 18 The three fluid 1-filled semicircular canals of the inner ear are responsible for what? draining fluids in to the pharynx hearing balance transmitting vibrations 1 pts

### Question 1: What is the name of the shell-shaped structure of the outer ear? <br />**Answer:** **Pinna** <br />- The **pinna** (also called the auricle) is the external, shell-shaped part of the ear that collects and directs sound waves into the ear canal. <br /><br />---<br /><br />### Question 2: The three fluid-filled semicircular canals of the inner ear are responsible for what? <br />**Answer:** **Balance** <br />- The semicircular canals are part of the vestibular system in the inner ear. They detect rotational movements of the head and help maintain balance and spatial orientation. <br /><br />