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Transcript of Circulatory system
Organs and vessels involved
Comparison of an organ to an organelle
The Golgi apparatus does the packaging and exporting of proteins for use to the other parts of the cell. Similarly the blood vessels transport blood to and away from the heart
The Heart is made up
diac muscle . It is the size
fist. It ha
It pumps oxygenated blood to cells and pumps
oxygenated blood to the lungs
Homeostasis maintained by the circulatory system- contribution to the entire oragnism
Failure of Homeostasis
The Failure of Homeostasis in this circulatory system can result in consequences ranging from Cardiac Arrest to death.
The circulatory system moves blood to and from tissues in the body. The blood delivers oxygen, food, and other materials to cells. It also carries waste
products away from cells
The Circulatory system acts as a mean of transport for the
hormones, gases, nutrients and also for the removal of waste
It also helps maintain homeostasis
by circulating the body temperatures evenly
There are two subclavian arteries that supply our arms with blood. The subclavian arteries branch to the vertebral arteries. These carry oxygenated blood up to the brain from the base of the neck.
Right subclavian artery
Arteries, Veins, Capillaries
Tube like structures
Tranport bodily fluids like blood along with gases and hormones
The vessels which carry blood from various body organs to the heart are known as Veins
All veins carry deoxgyenated blood except for pulmonary vein- carries oxygenated blood
The aorta is the largest artery in the body. The aorta begins at the top of the left ventricle, the heart's muscular pumping chamber. The heart pumps blood from the left ventricle into the aorta through the aortic valve. Three leaflets on the aortic valve open and close with each heartbeat to allow one-way flow of blood.
All blood vessels leading from the heart are called arteries. All arteries carry oxygenated blood except for pulmonary artery.
Carries oxygenated blood even though it is a vein
The superior vena cava is the large vein which returns blood to the heart from the head, neck and both upper limbs. The inferior vena cava returns blood to the heart from the lower part of the body.
Capillaries are the smallest of blood vessels. They serve to distribute oxygenated blood from arteries to the tissues of the body and to feed deoxygenated blood from the tissues back into the veins. The capillaries are thus a central component in the
Differences between the vessels
Heart and its specialised tissues
Cardiac muscle tissue is an extremely specialized form of muscle tissue that has evolved to pump blood throughout the body. In fact, cardiac muscle is only found in the heart and makes up the bulk of the heart's mass.
Tissues of the Heart
Specialised cells of the Circulatory system
Red blood cells (erythrocytes) are specialized cells of the
circulatory system. They are the most common component of
blood. A small droplet of blood contains about 5 million
erythrocytes. They constitute 40% of a female's blood volume and
45% of a male's blood volume.
White blood cells are another type of specialized cells found in this system. They help fight diseases and play an important role in the immmune system. They are the body's thrid line of defense.
To help maintain Homeostasis, the circulatory system regulates and maintains the correct levels of nutrients, oxygen, and waste products needed by the cell
Atherosclerosis is a disease in which plaque builds up inside your arteries. Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body.
Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows your arteries. This limits the flow of oxygen-rich blood to your organs and other parts of your body.
Cardiomyopathy refers to diseases of the heart muscle. These diseases have many causes, signs and symptoms, and treatments.
In cardiomyopathy, the heart muscle becomes enlarged, thick, or rigid. In rare cases, the muscle tissue in the heart is replaced with scar tissue.
As cardiomyopathy worsens, the heart becomes weaker. It's less able to pump blood through the body and maintain a normal electrical rhythm. This can lead to heart failure or irregular heartbeats called arrhythmias. In turn, heart failure can cause fluid to build up in the lungs, ankles, feet, legs, or abdomen.
The weakening of the heart also can cause other complications, such as heart valve problems.
A heart attack happens when the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can’t get oxygen. If blood flow isn’t restored quickly, the section of heart muscle begins to die.
Heart after Heart Attack