Human Body feed
Muscle waves
Food does not simply fall from your throat into your stomach. Coordinated waves of muscle activity called peristalsis propel it along the esophagus, and related movements help transport contents through other parts of the digestive tract.
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.