Cells and Systems - Topic 6/7 Flashcards
What does the circulatory system do?
Circulate blood and oxygen through the body to provide nutrition for cells.
What does the Excretory system do?
Gets rid of waste in the body. This includes peeing and pooping.
What does the digestive system do?
The digestive system breaks down food and transfers nutrients to the bloood stream to feed cells.
What does the nervous system do?
The nervous system send signals between the brain and teh rest of the body. The nervous system allows control of your body.
What does the respitory system do?
Your respitory system system helps your body absorb oxygen from the air, so it can feed the cells in your body. Your lungs also rid your body of waste gases.
What is the main function of plasma?
Plasma carries nutrients, waste, hormones and blood cells.
What is the main function of red blood cells?
Red blood cells carrie oxygen to cells.
What is the main function of white blood cells?
Defend body against infection and disease.
What is the main function of platelets?
Cause blood clots at site of wound. This prevents blood loss.
What are the main functions of Arteries and Veins? What is the main difference?
Arteries cary oxygen rich blood and circulate it to cells in your body. Veins return deoxygenated blood to the heart to become oxygenated. The main difference is that Arteries cary oxygenated blood away from the heart and Veins bring deoxygenated blood back to the heart.
What are the GENERAL STEPS that happen in the digestive system?
The salivary glands produce saliva that break down food. The food is sent down your esophagus and is broken down by your stomach, pancreas, liver, and small intestine. You absorb nutrients through your small intestine.
What are the GENERAL STEPS that happen in the respitory system?
Air enters through your nose or mouth and goes down your trachea. Oxygen enters the lungs by going through the bronchi and then a series of bronchioles that lead to the aveoli. The aveoli are serounded by capillaries that transfer oxgen into the blood. Co2 exits out of your nose or mouth.
What are the GENERAL STEPS that happen in the circulatory system?
The heart pumps bood to the heart to get oxygen from teh lungs. After the capillaries and aveoli transfer oxygen into the blood stream, it is taken back to the heart to be pumped through out the rest of your body.
How does the circulatory system and the digestive system work together?
Cells get nutrients from our blood to keep our body working. Inside of teh small intestine there are tiny vili that are covered by capillaries. The nutrients is absorbed by the villi and transfered into your blood stream to feed cells.
What are 3 unhealthy habits that can lead to system dissorders?
Smoking, high salt diet, high sugar diet.
