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31 Cards in this Set

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