Human Body feed
Hair cells
Sensory hair cells inside the cochlea translate sound-driven movement into electrical activity. The auditory nerve carries information onward, and the brain interprets it as recognizable sound.
300
Babies have more separate skeletal pieces than adults, often described as about 300 bones compared with the usual adult count of 206. The newborn number is approximate because developing bone and cartilage are not always counted the same way.
1 cm
People are usually slightly taller after a night lying down because spinal discs regain fluid when unloaded. Around a centimeter is a useful rough illustration, not a fixed daily change for everyone.