circulatory system
By:Sydney Pedersen and Jack Terrell
how it works
The circulatory system is a crucial body system that impacts every cell in our bodies. The heart is the muscular organ which pumps blood through the arteries and veins. It gives the cells nutrients and oxygen, while it takes away waste. It transports oxygenated blood from the heart and delivers oxygen and nutrients to the body's cells. It then returns the deoxygenated blood to the heart. An average adult has 5-6 quarts of blood. The system of blood vessels in the human body can measure to about 60 miles!
MAJOR ORGANS
Levels of Organization (the heart)
cells-make up tissue
tissue-makes up organs
organs-make up systems
systems-make up organisms
Heart Cells
The cells that make up the heart tissues.
Heart Tissues
The tissues that make up the heart (the organ).
Organ - Heart
The organ is the heart itself. It makes up the organ system. EXTRA CREDIT: The heart is a strong muscle with 4 chambers. The left side pumps oxygenated while the right side pumps deoxygenated blood.
Organ systems - circulatory system
The heart is a crucial part of the circulatory system/organ system
Organisms
The heart, along with the organ system/circulatory system, is what makes survival possible every human organism.
Homeostasis
The circulatory system maintains homeostasis by delivering oxygen and nutrients continuously to each cell in the blood. It also helps with removal of waste. This helps to maintain the correct balance.
diseases
Heart disease, also called cardiovascular disease, is the leading cause of death for adults in America.
cardiomyopathy
Cardiomyopathy changes the heart muscle and reduces the ability for the heart to pump blood. This leads to heart failure.
clogged arteries
Arteries can become clogged (narrowed) with a build-up of sticky plaque. This is usually the result of too much fat and cholesterol in the diet and can result in a heart attack.
INTERAcTIONS
The circulatory system is highly interactive with other body systems.
endocrine system (extra credit)
The endocrine system uses the blood vessels to circulate chemicals and hormones through the body.
Respiratory system
The respiratory and circulatory systems work together, forming a connection between the heart and lungs, this is called the cardio-pulmonary system.
skeletal system
The marrow inside the bones produces blood cells to be used in the circulatory system
FUN FACTS
Tiny blood cells
Red blood cells are about 8 microns (1/3000 of an inch).
A long circulatory system
The entire circulatory system laid out end to end would stretch about 60,000 miles!
What's different about red cells
-Red cells have no nuclei and lack a large internal structure.
-Each red cell has more room to carry oxygen.
-Red cells don't synthesize new cellular components.