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.
Heart passages open vertically (atrium and ventricle) and the heart is divided into side-by-side pumps serving two blood circuits: 1  Pulmonary circuit - receives blood returning to the heart from the body and sends it through the lungs for oxygenation.  Systemic circuit - supplies the entire body with oxygenated blood.