Circulatory Unit

Oxygen

O2. This gas is circulated to muscles and organs for proper functioning. Oxygenated blood.

Vessels

Vein Arteries

Aorta

Artery, transports oxygenated blood away from heart to systemic circuit. Largest artery in the body.

Pharynx

Last area before air and food are separated to different locations. Passageway for air and food to cross.

Ventricles

Lower chambers of the heart. Act as pumps. Pumps blood.

Atrioventricular

Prevents backflow of blood between atria and ventricles. Located in the lower wall of the right atrium and sends an impulse through the bundle of His, which passes down between both ventricles and into the ventricles through Purkinje fibers. This results in the contraction of the ventricles

Arteriole

Smaller diameter vessel branching off an artery. Blood vessels that are smaller branches off of arteries. CARRIES BLOOD TO THE SMALLEST OF ALL BLOOD VESSELS

Nose

Smell, filter and warm air and moistures.

Atria

TWO UPPER CHAMBERS OF THE HEART. Act as recievers. Receive blood.

Alveoli

Thin spheres where gas exchange takes place. Where capillaries exchange oxygen and carbon dioxide. Tiny sacs of lung tissue specialized for the movement of gases between air and blood

Left Pulmonary Vein

Transports oxygenated blood into the heart from the left lung. Bring oxygen-rich blood from the left lung to the left atrium

Bronchus

Two branches, one that goes to each lung; widest branch off the trachea.

Right Bronchus

Largest branch off of the trachea to the lungs. Is larger and shorter and takes a more vertical direction

Pulmonary

Lungs. Blood flow through a network of vessels between the heart and the lungs for the oxygenation of blood and the removal of carbon dioxide.

Right Ventricle

Pumps deoxygenated blood to lungs, receives blood from right atrium. O2 poor blood leaves the heart going to the lungs from this heart chamber.

Diaphragm

Pushes lungs up and down (makes them explode). Large, flat muscle at the bottom of the chest cavity that helps with breathing. (Anatomy) a muscular partition separating the abdominal and thoracic cavities.

Right Atrium

Receives deoxygenated blood from sup/inf vena cava, pumps into right ventricle. RA. Receives deoxygenated blood from the body

Left Atrium

Receives oxygenated blood from lungs, pumps blood into left ventricle. LA.

Capillary

Thin vessels where gas exchange takes place. A tiny blood vessel where substances are exchanged between the blood and the body cells. Very small vessels where gas exchange takes place.

Right pulmonary Artery

Transports deoxygenated blood away from heart to right lung. RPA. Takes oxygen poor blood from the right ventricle to the right lung.

Left Pulmonary Artery

Transports deoxygenated blood away from the heart to left lung. Carries poor oxygenated blood from the right ventricle to the left lung.

Right Pulmonary Vein

Transports oxygenated blood into heart from right lung. Bring oxygen-rich blood from the right lung to the left atrium.

Inferior Vena Cava

Vein, transports deoxygenated blood into right atrium from systemic circuit below the heart. IVC. A vein that is the largest vein in the human body and returns blood to the right atrium of the heart from bodily parts below the diaphragm.

Superior Vena Cava

Vein, transports deoxygenated blood into the right atrium from systemic circuit above the heart. A vein that is the second largest vein in the human body and returns deoxygenated blood to the right atrium of the heart from the upper half of the body.

Larynx

Voice box.

Pulmonary Circuit

A circuit carries blood between the heart and lungs. Blood flow through a network of vessels between the heart and the lungs for the oxygenation of blood and the removal of carbon dioxide.

Systemic Circuit

A circuit that carries blood between the heart and the rest of the body. Circuit of blood that carries blood between the heart and the rest of the body.

Valve

A flap of tissue in the heart or a vein that prevents blood from flowing backward.

Atrium

A heart chamber that receives blood

Oxygenated Blood

Blood is found on the left side of the heart. Blood that carries an abundant amount of oxygen. Blood high in oxygen and low in carbon dioxide

Deoxygenated Blood

Blood is found on the right side of the heart. Blood that is oxygen poor. Blood high in carbon dioxide and low in oxygen

Arteries

Blood vessels that carry blood away from the heart

Veins

Blood vessels that carry blood back to the heart

Carbon Dioxide

CO2. This gas is a waste product expelled by animals. Deoxygenated blood.

Mouth

Filter air, take in food.

Left Ventricle

LV. Pumps oxygenated blood into the aorta.

Vena Cava

Large veins which return deoxygenated blood to the heart. Largest Vein. One of two large vessels (superior and inferior) that return deoxygenated blood to the right atrium of the heart.

Epiglottis

Muscular flap that regulates air. A flab of tissue that prevents food from entering the trachea, or windpipe, during swallowing

Bronchiole

Narrower branches found within the lung. The smallest beaches off of the trachea in the lungs. Airways in the lungs that lead from the bronchi to the alveoli.

Lungs

Organ between the pulmonary artery and the pulmonary vein.

Right Lung

Organ where gas exchange takes place. Larger and shorter (displaced by liver) and has three lobes.

Diffusion

Oxygen moving from high concentration in the blood to low concentration in the muscles.

Trachea

Pipe found in neck taking air to the lungs. Windpipe contains cilia to help filter air.

Left AV Valve

Regulates direction of flow of blood from left atrium to left ventricle. Also called Bicuspid or Mitral valve This valve controls flow down to a specific Ventricle

Right AV Valve

Regulates direction of flow of blood from right atrium to right ventricle. Also called the Tricupsid valve. Prevents back flow of deoxygenated blood

Aortic Valve

Regulates the flow of blood from left ventricle into aorta. Between left ventricle and aorta

Left Bronchus

The smallest branch off of the trachea in the lungs. Carries air to lung