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Animal Phys

Terms in this set (39)

The ___________ ______ is comprised of the heart, veins, capillaries, arteries, lymph vessels, and lymph glands...
Circulatory System
What are 2 functions of the circulatory system?
Distribute nutrients, prevent infection
The heart is a ______-shaped, hollow, muscular organ that is responsible for pumping _____ to all parts of the body.
Funnel, blood
The heart is located near the center of the ________ cavity...
Thoracic
The broad end, or base, of the heart is also supported by large ________ and _____.
Arteries, veins
Epicardium-_____ layer of the heart wall...
Outer
Endocardium-_____ layer...
Inner
The cardiac muscle is an ___________, striated muscle...
Involuntary
The AV valves have flaps of tissues, called leaflets or cusps, which ______ and ________...
Expand, contract
The ______ valve is located between the left ventricle and the aortic artery.
Aortic
The vascular system is made up of 3 types of blood vessels. Please list the three.
Arteries, capillaries, veins.
The large arteries have _____ _____ of elastic-like tissue...
Thick walls
_____ ________ for the entire circulatory system is maintained...
Blood pressure
_____ is a serious condition that occurs when...
Shock
Capillaries are so small in diameter that blood cells pass through in a ______ ____.
Single file
The semi-permeable membrane of capillary walls allows nutrients, _____, and _____ to diffuse...
Oxygen, water
_____ are the blood vessels that return blood to the heart from all parts of the body.
Veins
Veins have valves that aid the return flow of blood and prevent the blood from __________ flow.
Reversing
The valves also assist the return flow of blood to the heart when blood pressure is ___.
Low
Pulmonary circulation is the part of the circulatory system that takes the blood from the ______ to the _____.
Heart, lungs.
In the lungs the pulmonary arteries branch into ___________ that surround the alveoli.
Capillaries
Through diffusion, ______ _______ moves from the blood into the alveoli...
Carbon dioxide
The amount of pressure that is required for pulmonary circulation is ____ than what is required for systematic circulation.
Less
Un-oxygenated blood is ____ or ________ red, while oxygenated blood is ______ red.
Dark, brownish, bright
Blood is filtered during systemic circulation by the _______ and _____.
Kidneys, liver
Oxygenated blood leaves the left ventricle of the heart through the _____...
Aorta
A heart attack often involves a ____ in the coronary arteries...
Clot
The carotid arteries branch off the brachiocephalic trunk and carry oxygenated blood to the ____ and ____ region.
Neck, head
The gastric artery supplies blood to the _______.
Stomach
The hepatic artery supplies blood to the _____.
Liver
List one function of renal arteries.
Supplies blood to the kidneys.
The femoral arteries and their branches supply oxygenated blood to the ____ ____.
Hind legs
Most veins eventually empty the ____________ _____ into the vena cava.
Un-oxygenated blood
Before blood is returned to the heart from the stomach, pancreas, small intestine, and spleen, it goes through the liver for __________.
Filtration
The lymphatic system is part of the ______ ______ and acts as a secondary circulatory system.
Immune system
Lymph nodes filter foreign substances, such as ________ and ______ _____...
Bacteria, cancer cells
When a specific location gets infected, the lymph nodes in that area will ________...
Enlarge
This is particularly critical in the case of ______...
Cancer
______, which makes up 50-65% of the total volume of blood...
Plasma
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