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bio circulation respiration cw.txt
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The _____ arteries take deoxygenated blood from the heart to the lungs.
Pulmonary
The common name for the human trachea (2 words).
Windpipe
The heart has 2 _____ that pump blood out of the heart.
Ventricles
Disc-shaped cells that house hemoglobin.
Erythrocytes
Brain damage due to blockage of arteries in the brain.
Stroke
Muscles between ribs important in breathing.
Intercostal
The ___ valves close between the atria and ventricles of the heart to prevent back flow of blood.
Atrioventricular
The _____ system returns some of the blood plasma to the veins and is important in the immune system.
Lymphatic
Proportion of total atmospheric pressure contributed by a gas (2 words).
Partial pressure
Tiny air sacks of the lungs.
Alveoli
Deposits (often containing cholesterol) on the walls of arteries that reduce their functional diameter.
Plaques
Blood vessel that takes blood toward the heart.
Vein
Vessel intermediate in size between arteries and capillaries.
Arteriole
A moving blood clot.
Embolus
Intermediate sized blood vessels between capillaries and veins.
Venule
Protein important in blood clotting.
Fibrin
__________ flow is a gas exchange mechanism used by fish.
Countercurrent
Relaxation of the heart.
Sheet of muscle that separates the thoracic and abdominal cavities and is important in breathing.
Diastole
Diaphragm
The large artery that takes oxygenated blood from the heart to the body.
Aorta
Respiratory structure in insects.
Trachea
The "pacemaker" of the heart is the _____ node.
Sinoatrial
The human trachea branches into 2 _____.
Bronchi
The heart has 2 ___ that receive blood from veins.
Atria
The _____ valves close to prevent backflow of blood into the ventricles of the heart.
Semilunar
Decreased ___ (increased acidity) causes hemoglobin to release oxygen.
pH
Death of heart muscle tissue due to O
2
deprivation from blockage of the coronary artery.
Heart Attack
Most CO
2
is converted to this ion for transfer in the blood.
Bicarbonate
The metal atom in hemoglobin that binds oxygen.
Iron (Fe)
Blood vessel that takes blood away from the heart.
Artery
Liquid part of blood.
Plasma
The respiratory pigment in vertebrates.
Hemoglobin
Contraction of the heart.
Systole
The large vein that brings deoxygenated blood to the right atrium of the heart (2 words).
Vena Cava
Author
samanthony0426
ID
142536
Card Set
bio circulation respiration cw.txt
Description
Biology Circulation & Respiration Crossword
Updated
2012-03-19T23:31:32Z
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