Assignment On Endocrine System

Glucagon acts on liver cells to promote breakdown of glycogen into glucose and formation of glucose from lactic acid and certain amino acids.

There are different types of circulation, two of which are systemic and pulmonary circulation. Systemic circulation pumps oxygen rich blood from the heart and into the aorta, which travels down in front of the spinal column and into the abdomen. Two coronary arteries branch off and divide into smaller networks of arteries to provide oxygen to heart muscles. However, pulmonary circulation carries oxygen-poor blood and divides into right and left branches on the way to the lungs to fill the blood with oxygen.

Likewise, Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle, forming the complete circulation.

1. Name the circulatory system that carries blood from the heart to the lungs and back to the heart.

Pulmonary circulation is the circulation of the deoxygenated blood through the pulmonary arteries and oxygenated blood through the pulmonary veins. Each organ gets a supply of blood and this is because each organ has an arterial and venous. “The systemic circulation comprises all the blood vessels not involved in the

Question 1: How does the insulin and glucagon secreted by the pancreas function in glucose metabolism?

The right ventricle fills up  tricuspid valve closes  right ventricle contracts  pulmonary valve opens  the blood flows into the pulmonary artery  pulmonary valve closes  pulmonary artery splits into two vessels each going to the lungs.

Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs where the blood picks up oxygen and returns

The right atrium is where the process begins. Then, blood travels through the tricuspid valve to the right ventricle, and from there to the pulmonary artery. Once the blood travels through the pulmonary artery, it reaches the lungs. While in the lungs, the blood goes through a gas exchange: deoxygenated blood gets oxygenated (The gas exchange takes place in the alveoli, which are tiny air sacs in the bottom of the lungs

Once deoxygenated blood enters the right atrium, it travels through the tricuspid valve into the right ventricle. Then the blood goes through the pulmonary semilunar valve into the pulmonary arteries. Once in the pulmonary arteries the blood is pumped into the lungs where it is then oxygenated. The blood goes from the lungs through the pulmonary vein into the left atrium. From there it passes through the bicuspid valve into the left ventricle where it is then pumped out through the aortic semilunar valve into the aorta (Drake 101). From the aorta the blood goes to the right and left coronary arteries.

The hormone which is made by the pancreas is said to be insulin that permits the body to utilize sugar from carbohydrates and its maintain energy for future use. Insulin mainly helps to maintain the sugar level in blood from getting high to low. The cells in the body require energy which can get from sugar and it cannot go directly into the cells. After eating the food, blood sugar level increases that time the cells in the pancreas will give signal to release insulin in the blood stream. Insulin after attaches to and the cell in signal will absorb sugar in the bloodstream. Insulin is termed as key which open the cell to allow the sugar into the cell and it can be used for energy.

During pulmonary circulation the blood moves from the heart to the lung to become oxygenated, the blood is then circulated back to heart. Deoxygenated blood enters the right atrium from the superior and inferior venae cavae. The blood is pumped through the tricuspid valve into the right ventricle. The blood is then pumped through the pulmonary valve and into the pulmonary artery from the right ventricle.

The pancreas is a vital part of the digestive system and a critical controller of blood sugar levels.

has to go through the heart twice and this is why it is called a

The main function of the pancreas is maintaining blood glucose levels to about 70-150 milligrams per decilitre. The pancreas does this by measuring if the blood sugar level is too high or low, if it is not the correct level then a hormone is released. If the blood sugar level is too high insulin is released from the beta cells and causes glucose to enter body cells to be used for energy but sometimes can stimulate glucose to turn to glycogen in the liver. However, if it is too low then glucogen is released into the blood which causes the stored glycogen in the liver to break down