What are the six goals functions for the circulatory system?
Distribute nutrients from the digestive tract, liver and adipose (fat) tissue.
Transport oxygen from the lungs to the entire body and carbon dioxide from the tissues to the lungs.
Transport metabolic waste products from tissues to the execretory system
Transport hormones from endocrine glands to targets and provide feedback
Maintain homeostasis of body temperature
Hemostasis (blood clotting)
the flow of blood through a tissue
inadequate blood flow due to shortages of O2, nutrients and buildup of metabolic wastes
a condition of a tissue in which there is adequate bloodflow but a reduced supply of oxygen
the functions of the circulatory system include...
Transport of the blood throughout the body and exchange of material between the blood and tissues
The ______ is the organ that is a muscular pump that forces blood through a branching series of vessels to the lungs and the rest of the body.
Vessels that carry blood away from the heart at high pressure are called...
Vessels that carry blood back toward the heart at low pressure are called...
Arteries branch into increasingly smaller arteries called...
arteries branch into aterioles because?
The farther the arteries are from the hear, the more the pressure of blood decreases, smaller arteries will keep the blood pressure consistent.
arterioles branch into ...
capillairies are wide enough to let ____pass through
a single blood cell
after passing through the capillaries, blood collects in small veins called...
blood goes from the venules into the _____ back to the ____.
the right side of the heart pumps blood to the...
the left side of the heart pumps blood to...
everything but the lungs
the flow of blood from the heart to the lungs and back to the heart is called...
the flow of blood from the heart, to the rest of the body, back to the heart is called...
portal systems are systems in which blood passes through capillaries...
more than once
the heart has two kinds of chambers involved in pumping blood. The _____ and the ____.
atria and the ventricles.
The _____ is where blood can collect from the veins before getting pumped into the _____.
The _______ pump blood out of the heart at high pressure into the arteries.
The right atrium recieves ______ blood from the ______ circulation.
Detailed step by step of the flow of blood in the heart.
you start at the superior and inferior vena cavas then into the right atrium, through the tricuspid valve into the right ventircle, up through the pulmonary semilunar valve, into the pulmonary artery, out to the lungs, back into the pulmonary veins, into the left atrium, down through the bicuspid (mitral) valve, into the left ventricle up into the aortic semilunar valves, and finally through the aorta.
the very first branches from the aorta are ______ arteries.
Coronary arteries branch t supply blood to the _____ of the heart.
The coronary arteries and viens get the word "coronary" because...
they encircle the heart forming a crown shape.
A _________ valve is between each ventricle and atrium to prevent blood backflow.
the coronary arteries and veins mere from the _____ sinus
the AV valve between the left atrium and ventricle is called...
the bicuspid (mitral) valve
the AV valve between the right atrium and ventricle is called...
the tricuspid valve
the two semilunar valves are...
the pulmonary semilunar valves
the aortic semilunar valves
when veins fail, _____ result.
during diastole, the ventricles are ________ and blood flows into the atria.
during diastole the atria...
in systole, the ventircles are _______ and the atria are ______.
the heart rate (HR) or pulse is the number of times the _________ is repeated per minute.