The atrium is part of the heart, which is a part of the circulatory system.
Circulatory system
Tendons belong to the musculoskeletal system in the human body.
The mouth belongs to the DIGESTIVE SYSTEM. Others may include the Esophagus, Stomach, and Intestines.
Bones belong to the skeletal system, which provides structure, support, and protection to the body. The skeletal system is composed of bones, cartilage, and other connective tissues that work together to help with movement and protect vital organs.
Sweat glands belong to the integumentary system, which is the body's system responsible for protecting the body from damage, such as dehydration and infection. Sweat glands help regulate body temperature by producing sweat, which cools the body through evaporation.
The heart contains atrium
Circulatory system
Circulatory system
Circulatory system
right atrium
They belong to the nervous system
The coronary sinus empties into the right atrium of the heart. It serves as a drainage system for deoxygenated blood from the myocardium.
The kidneys belong to the excretory system.
The vascular circuit that connects the right atrium to the left atrium is the pulmonary circulation.
Veins belong to the circulatory system, because they transport blood there for they belong to the circulatory system.
The eyes belong to the Nervous system.
From the venous system, blood enters the right atrium, then goes to the right ventricle, then in to the pulmonary system, then to left atrium, then left ventricle then back out to the body.