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31 Cards in this Set
- Front
- Back
what is located in a artery?
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tunica media (circular shaped); thin so has high chance of collapsing.
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what is located in capillaries?
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only have tunica intima (epi tissue) 1 layer
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pulmonary circulation oygen levels?
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arteries=oxygen poor veins= oxygen rich
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systemic circulation oxygen levels
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arteries oxygen rich veins oxygen poor
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fetal circulation?
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fetal vein sends blood to heart and the arteries oxygen poor, away from the heart.
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normal blood pressure
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110/70 mm Hg
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hypertension blood pressure
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>140/90 mm Hg
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hypotension blood pressure
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<90/60 mm Hg
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what is the tunica interna made up up of?
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endothelium (simple squamous epithelium)
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what is the tunica media made up of?
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smooth muscle
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what is the tunica externa made up of?
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connective tissue
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atherosclerosis?
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disease process in which the bodies blood vessels become increasingly occluded by plaques.
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atherosclerosis plaque?
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narrow arteries leading to hypertensive heart disease. also form blood clots which lead to heart attack
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define TV?
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tidal volume- air that moves into and out of the lungs with each breath (approx 500ml)
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define RV?
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residual volume- air left in the lungs after strenuous expiration (1200ml)
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define VC?
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vital capacity- the total amount of exchangeable air (TV+IRV+ERV)
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define IRV?
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inspiratory reserve volume- air that can be inspired forcibly beyond the tidal volume (2100-3200ml)
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define ERV?
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expiratory reserve volume- air that can be evacuated from the lungs after a tidal expiration (1000-1200 ml)
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define TLC?
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total lung capacity= VC+RV
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define stethoscope?
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instrument for listening to various sounds within the body.
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define sphygmomanometer?
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instrument for testing blood pressure; particularly in arteries.
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define blood pressure
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The pressure exerted by the blood against the walls of the blood vessels, especially the arteries. It varies with the strength of the heartbeat
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define systolic BP?
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The blood pressure when the heart is contracting. It is specifically the maximum arterial pressure during contraction of the left ventricle of the heart.
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define diastolic BP?
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when the heart is resting between beats.
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define pulse?
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The rhythmical throbbing of arteries produced by the regular contractions of the heart, especially as palpated at the wrist or in the neck.
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define palpation?
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the act of feeling with the hand; the application of the fingers with light pressure to the surface of the body for the examination of any area of the body.
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define auscultation?
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istening for sounds within the body, chiefly to ascertain the condition of the thoracic or abdominal viscera and to detect pregnancy; it may be performed with the unaided ear (direct or immediate a.) or with a stethoscope (mediate a.) .auscul´tatory
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define spirometer?
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instrument used to evaluate respiratory function
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define buffers?
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opposing against a concentration gradient to bring pH towards median.
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acid
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when pH is above 7
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base
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when pH is below 7
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