Tendons are a type of connective tissue that attach muscles to bones, enabling movement.
The heart is a muscular organ that pumps blood through the circulatory system, supplying oxygen and nutrients.
The respiratory system supplies oxygen to the body and removes carbon dioxide through breathing.
The cell is the smallest unit of life and serves as the basic structural and functional unit of the human body.
The circulatory system transports blood, oxygen, nutrients, and waste products to and from cells.
The skeletal system provides structure, supports the body, protects organs, and aids in movement.
