Human Body

Artery

A blood vessel that carries blood away from the heart. Artery. An artery is a tube-like structure that carries oxygen-rich blood from the heart to other parts of the body.

Capillary

A tiny blood vessel that allows the exchange of gases, nutrients, and waste products. Capillary. Capillaries are the smallest blood vessels in the body where oxygen and nutrients are exchanged for waste with cells.

Circulatory system

The system of the heart, blood, and blood vessels, it moves oxygen, nutrients and waste. Circulatory system. It is the body's network that transports blood, delivering essential substances like oxygen to cells and removing waste.

Digestive system

The system of organs that breaks down food into nutrients for use by the body. Digestive system. The digestive system is a group of organs that work together to turn the food we eat into energy and nutrients our bodies need.

Esophagus

The muscular tube connecting the mouth to the stomach. Esophagus. The esophagus is a tube that carries food and liquid from your throat to your stomach.

Muscular system

The organ system made up of muscles that help the body move. Muscular system. The muscular system consists of tissues that contract and relax to move parts of the body.

Neuron

A nerve cell that carries impulses in the nervous system. Neuron. In simple terms, a neuron is a specialized cell that sends and receives messages within the brain and nervous system.

Respiratory system

The organs that transfer oxygen from the air to the body, like the nose, trachea, and lungs, are part of the respiratory system. The respiratory system helps you breathe by getting oxygen into your body and removing carbon dioxide.

Skeletal system

All the bones in the body that support it, help it to move, and protect internal organs. Skeletal system. The skeletal system is the body's framework of bones that supports movement and protects vital organs.

Vein

A blood vessel that carries blood to the heart. vein. A vein is a type of blood vessel that returns blood to the heart after it circulates through the body.