1 ) expain transportation in animals ,heat and double circulation
TRANSPORTATION IN ANIMALS - Transportation can be defined as the movement of any substance from one place to another.
- Water and nutrients required for all metabolic activities should be transported in the body of plants and animals.
- The waste material or excretory products should also move to the region of excretion.
- Transportation in animal takes place through circulatory system which includes blood, blood vessels and heart.
- Blood is a fluid connective tissue consists of fluid medium called plasma.
- Functions of blood are to transport food, oxygen, carbon dioxide, nitrogenous wastes, salts.
- A pumping organ is necessary to push the blood around the body
- HEART is the muscular pumping organ which pushes the blood around the body.
- Tube like structure through which carry blood to cells, tissues and organs are called as blood vessels.
- Two special blood vessels are arteries and veins.
- After reaching the organs, the arteries divide in to small branches called as capillaries.
- Heart in another component of circulatory system which is also known as pumping organ.
- Heart consists of four chambers separated by a partition to avoid mixing of oxygenated and deoxygenated blood.
double circulation is a distinguishing characteristic of the human circulatory system. It is very significant as it allows for proper circulation of blood, without the mixing of the oxygenated and deoxygenated blood. This separation of oxygenated and deoxygenated blood allows for an efficient supply of oxygen to the body cells and delivers a greater blood flow rate. Mechanism Of Double Circulation Double circulation is the most efficient way of circulation. Here, in humans, the four-chambered heart, arteries, veins, and capillaries all have a vital role to play. Blood gets pumped out of the heart. This blood goes to different organs and then blood again comes back to the heart. All this happens in a very systematic way through the different arteries and veins carrying oxygenated and deoxygenated blood.
In double circulation, there are two pathways in which blood flows. They are:
- Pulmonary pathway
- Systemic pathway.
The pulmonary circulation or pathway carries the deoxygenated blood from the right side of the heart to the lungs. Exchange of oxygen and carbon dioxide takes place in the lungs and the blood is now oxygenated (with oxygen).
Through the systemic circulation, oxygenated blood travels from the left side of the heart to the other areas of the body. At various organ sites, exchange of gases, nutrients, and waste through lymph occurs. This deoxygenated blood again goes back to the right side of the heart.
The pulmonary circuit and the systemic circuit work together. This ensures that deoxygenated blood goes to the lungs through the pulmonary artery while the oxygenated blood from the aorta reaches the different organs and tissues.
Hope it helps..
- Transportation can be defined as the movement of any substance from one place to another.
- Water and nutrients required for all metabolic activities should be transported in the body of plants and animals.
- The waste material or excretory products should also move to the region of excretion.
- Transportation in animal takes place through circulatory system which includes blood, blood vessels and heart.
- Blood is a fluid connective tissue consists of fluid medium called plasma.
- Functions of blood are to transport food, oxygen, carbon dioxide, nitrogenous wastes, salts.
- A pumping organ is necessary to push the blood around the body
- HEART is the muscular pumping organ which pushes the blood around the body.
- Tube like structure through which carry blood to cells, tissues and organs are called as blood vessels.
- Two special blood vessels are arteries and veins.
- After reaching the organs, the arteries divide in to small branches called as capillaries.
- Heart in another component of circulatory system which is also known as pumping organ.
- Heart consists of four chambers separated by a partition to avoid mixing of oxygenated and deoxygenated blood.
double circulation is a distinguishing characteristic of the human circulatory system. It is very significant as it allows for proper circulation of blood, without the mixing of the oxygenated and deoxygenated blood. This separation of oxygenated and deoxygenated blood allows for an efficient supply of oxygen to the body cells and delivers a greater blood flow rate. Mechanism Of Double Circulation
Double circulation is the most efficient way of circulation. Here, in humans, the four-chambered heart, arteries, veins, and capillaries all have a vital role to play. Blood gets pumped out of the heart. This blood goes to different organs and then blood again comes back to the heart. All this happens in a very systematic way through the different arteries and veins carrying oxygenated and deoxygenated blood.
In double circulation, there are two pathways in which blood flows. They are:
- Pulmonary pathway
- Systemic pathway.
The pulmonary circulation or pathway carries the deoxygenated blood from the right side of the heart to the lungs. Exchange of oxygen and carbon dioxide takes place in the lungs and the blood is now oxygenated (with oxygen).
Through the systemic circulation, oxygenated blood travels from the left side of the heart to the other areas of the body. At various organ sites, exchange of gases, nutrients, and waste through lymph occurs. This deoxygenated blood again goes back to the right side of the heart.
The pulmonary circuit and the systemic circuit work together. This ensures that deoxygenated blood goes to the lungs through the pulmonary artery while the oxygenated blood from the aorta reaches the different organs and tissues.
Hope it helps..
