The order is:
Auricle (outer ear or pinna)
Auditory meatus (ear canal)
Tympanic membrane (eardrum)
The ossicles (ear bones) - malleus, then incus, then stapes
Oval window (where stapes transmits vibrations into cochlea)
Cochlea (the snail shell lines internally by specialized cells that form the organ of Corti)
Organ of corti (specialized “hair” cells that pick up vibrations from the fluid in the cochlea)
Vestibulocochlear nerve (transmits signals to brain for processing)
Temporal lobe (brain region that processes auditory information)
I’d recommend you do a quick google search as well to take a look at a diagram showing all this anatomy!
Answer:
Enveloping our planet and protecting us from the fury of the Sun is a giant bubble of magnetism called the magnetosphere. It deflects most of the solar material sweeping towards us from our star at 1 million miles per hour or more. Without the magnetosphere, the relentless action of these solar particles could strip the Earth of its protective layers, which shield us from the Sun’s ultraviolet radiation. It’s clear that this magnetic bubble was key to helping Earth develop into a habitable planet.
