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30 Cards in this Set
- Front
- Back
- 3rd side (hint)
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circulatory system interacts with
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digestive system, and respiratory system, in order to maintain body;s internal environment.
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(3) two systems, why?
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three essential components in a circulatory system are
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- a pump
- fluid - vessels along which blood travels |
(3)
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plasma accounts for ___% of blood.
plasma is ___% water. |
55%
90% |
(2)
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composition of blood
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55% plasma.
45% formed elements. |
(2) %
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formed elements in blood
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red blood cells 99.9%
white blood cells platelets |
(3)
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red blood cells are manufactured in the ____ and stored in the ____.
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bone marrow, spleen
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(2)
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red blood cells primary function
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to carry oxygen
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1
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red blood cells do not have a ____, or ____.
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mitochondria, nuclei.
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2
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cytoplasm of rbc contains ____, which binds ____.
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hemoglobin, oxygen
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2
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blood is red due to ___, why?
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iron, when iron is exposed to oxygen colour changes
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2
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one hemoglobin molecule an bind ____
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4 oxygen molecules
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1
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as rbc passes through ____, oxygen ____ in and becomes _____.
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the lungs, diffuses, oxygenated
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3
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oxygen diffuses into ____ and blood becomes ____.
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tissue cells, deoxygenated
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2
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____ tissue lines called ____ lines the inside chambers of the heart.
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epithelial, endocardium
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2
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endocardium provides:
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smooth surface that minimalism friction as blood flows
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1
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heart is made of a tissue that is able to
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contract
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1
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heart 'wall' made of cardiac muscle is called
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myocardium
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1
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nervous tissue
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responds to stimuli to increase or decrease heart rate
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1
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deoxygenated blood us brought to the ____, and is pumped to ____ to be ____.
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right side of the heart, the lungs, oxygenated.
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3
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____ blood returns to the ____ of the ____ and is pumped to all parts of the body.
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oxygenated, left side, heart.
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3
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heart contains four chambers:
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right and left atria, right and left ventricles
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4
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atria:
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thin-walled chamber of the heart that receives blood
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1
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ventricles:
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heart chamber that pumps blood out of heart
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2
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left and right side of heart divided by this muscular tissue
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septum
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1
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pulmonary circuit
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low-pressure system that conveys bloods from heart to lungs
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1
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systemic system
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high pressure system that conveys blood from heart to rest of body
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1
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artery
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3 layers: epithelial cells, smooth muscle, and connective tissue
- able to stretch - thick muscular - carries blood away from heart |
layers (3), 3
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capillary
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- thin with very narrow diameter
- one cell thick - abundant - site of gas exchange with tissue cells |
4
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vein
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- elastic
- wall thinner than artery -Has valves - carries blood to heart |
4
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hypertension
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healthy adult ranges 100-140 mm Hg systolic, 70-90 mm Hg diastolic
high blood pressure = 140/90 treated by diet, exercise, and medication |
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