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 as a double pump. The right side of the heart pumps blood though the pulmonary circuit The left side of the heart pumps blood to all the body tissues via systemic circuit. pulmonary circuit. the blood vessels that carry blood to and from the lungs. systemic circuit. vessels that transport blood to and from all body tissues.