Fungal infections can be acquired by inhalation, ingestion, or through the skin (for example, through a cut or wound). Some fungal infections can cause disease in otherwise healthy animals, while others require a host that is sick, weakened, or immunocompromised to establish infection.
The heart is at the center of your circulatory system, which is a network of blood vessels that delivers blood to every part of your body. Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly. Your heart is a muscle, and its job is to pump blood throughout your circulatory system.
The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs. Learning Objective. Key Points. In the human heart there is one atrium and one ventricle each for systemic and pulmonary circulation, with four chambers in total: left atrium, left ventricle, right atrium, and right ventricle .