Describe Inhalation - Inhalation occurs when the diaphragm and intercostal muscles contract. The thorax and the lungs then get larger, which lowers the pressure and draws in air., Describe the flow of blood beginning with oxygen poor blood entering the right atrium. - xygen poor blood enters the right atrium and flows into the right ventricle. It is then pumped out to the lungs via the pulmonary artery. The blood receives oxygen in the lungs. Then oxygen rich blood enters the left atrium via the pulmonary veins and flows into the left ventricle. It is then pumped out to the body via the aorta and arteries. Blood is distributed to the body via the capillaries, where oxygen is removed. It is then returned to the heart via the superior and inferior vena cava and the cycle begins again., Name the four stages of digestion - Ingestion, Digestion, Absorption, Egestion, Ingestion - is when food is taken into the mouth, chewed and swallowed., Digestion - is when food is broken down by muscular crushing and enzymes., Absorption - is the moving of nutrients into the blood., Egestion - is the ejection of waste., What do red blood cells do? - Red blood cells have hemoglobin to carry oxygen, What do white blood cells do? - White blood cells help the body fight disease., What are platelets? - Platelets are tiny fragments of cells that help to stop bleeding., What is plasma? - Plasma is the liquid portion of blood.,

Anatomy Flash Cards

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