What job do these parts do?
Arteries: Arteries are blood vessels that carry oxygen-rich blood away from the heart to the rest of the body. They play a crucial role in the circulatory system by delivering nutrients and oxygen to the tissues and organs throughout the body.
Veins: Veins are blood vessels that carry blood toward the heart. They transport deoxygenated blood from the body back to the heart to be re-oxygenated and recirculated.
Septum: The septum is a partition or wall that separates two chambers or cavities in a biological structure, such as the nasal septum that divides the left and right nostrils or the septum that separates the chambers of the heart.
Ventricles: Ventricles are the two lower chambers of the heart. They receive blood from the atria and pump it into the arteries. In the brain, ventricles are interconnected cavities filled with cerebrospinal fluid.
Valves: Valves are structures that control the flow of fluids within the body. In the circulatory system, valves within the heart and veins prevent the backward flow of blood. Similarly, valves in the digestive system regulate the movement of food through the digestive tract.