BLOOD VESSELS

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Question

Answer

WHAT IS THE ADJUSTMENT OF BLOOD FLOW TO EACH TISSUE IN PROPORTION TO ITS REQUIREMENTS AT ANY POINT IN TIME

AUTOREGULATION

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THE CEREBRAL ARTERIAL CIRCLE (CIRCLE OF WILLIS) IS AN ARTERIAL__________

ANASTOMOSIS

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T. OR F. THE OUTERMOST LAYER OF A BLOOD VESSEL IS THE TUNICA INTIMA

FALSE

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T. OR F. THE THICK WALLED ARTERIES CLOSE TO THE HEART ARE CALLED MUSCULAR ARTERIES

FALSE

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_______ IS GENERALLY CONSIDERED SYSTOLIC BLOOD PRESSURE THAT IS BELOW 100 mm Hg

HYPOTENSION

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A ____ ______ IS A CUFF OF SMOOTH MUSCLE THAT REGULATES THE FLOW OF BLOOD INTO THE CAPILLARIES

PRECAPILLARY SPHINCTER

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THE ______ ______ ______ PROTECTS THE BLOOD SUPPLY TO THE BRAIN, WHERE AS THE _____ _____ IS MORE CONCERNED WITH MAINTAINING ADEQUATE BLOOD PRESSURE IN THE SYSTEMIC CIRCUIT AS A WHOLE.

CAROTID SINUS REFLEX AORTIC REFLEX

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T. OR F. VASODILATION IS A WIDENING OF THE LUMEN DUE TO SMOOTH MUSCLE CONTRACTION

FALSE

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THE ______ ______ DOES NOT DIRECTLY SERVE THE METABOLIC NEEDS OF BODY TISSUES

PULMONARY CIRCULATION

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IN _______ AND _______ CONGENITAL VASCULAR PROBLEMS ARE LESS COMMON THAN CONGENITAL HEART DISEASE

INFANTS & YOUNG PEOPLE

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THE MOST COMMON FORM OF SHOCK IS

HYPOVOLEMIC SHOCK

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EVERY MINUTE ABOUT 1.5ml OF FLUID LEAKS OUT OF THE_______

CAPILLARIES

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PERIPHERAL RESISTANCE

INCREASES AS BLOOD VISCOSITY INCREASES

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BRAIN BLOOD FLOW AUTOREGULATION

IS ABOLISHED WHEN ABNORMALLY HIGH CO2 LEVELS PERSIST

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BLOOD FLOW TO THE SKIN

INCREASES WHEN ENVIROMENTAL TEMPERATURE RISES

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______ AND _____ REFLECT THE BALANCE (OR IMBALANCE) BETWEEN THE DIRECTION AND AMOUNT OF FLUID THAT FLOWS ACROSS THE CAPILLARY WALLS

HYDROSTATIC AND OSMOTIC PRESSURE

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NAME A TYPE OF CIRCULATORY SHOCK AND WHAT IT IS DUE TO

VASCULAR DUE TO EXTREME VASODILATION AS A RESULT OF LOSS OF VASOMOTOR TONE

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WHICH TUNIC OF AN ARTERY IS MOST RESPONSIBLE FOR MAINTIANING BLOOD PRESSURE AND CONTINUOUS BLOOD CIRCULATION

BLOOD CLOTTING

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______ DOES NOT INFLUENCE ARTERIAL PULSE RATE

THE VESSEL SELECTED TO PALPATE

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______ ______ _____ ARE DIRECTLY INVOLVED IN PULMONARY CIRCULATION

RIGHT VENTRICLE, PULMONARY ARTERY, LEFT ATRIUM

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HISTOLOGICALLY THE _____ IS SQUAMOUS EPITHELIUM SUPPORTED BY A SPARSE CONNECTIVE TISSUE LAYER

TUNICA INTIMA

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THE ARTERIES THAT DIRECTLY FEED INTO THE CAPILLARY BEDS ARE CALLED

ARTERIOLES

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FENESTRATED CAPILLARIES

ARE NOT FOUND IN THE BRAIN

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MODIFIED CAPILLARIES THAT ARE LINED WITH PHAGOCYTES ARE CALLED

SINUSOIDS

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FACTORS THAT AID VENOUS RETURN INCLUDE ____ ____ ____ AND NOT _____

ACTIVITY OF SKELETAL MUSCLES, PRESSURE CHANGES IN THE THORAX AND VENOUS VALVES AND NOT URINARY OUTPUT

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WHAT BLOOD PRESSURE WOULD BE INDICATIVE OF HYPERTENSION

170/96 IN A 50 YEAR OLD MAN

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EXCESS RED CELL PRODUCTION WOULD CAUSE A _____ _____ INCREASE

BLOOD PRESSURE ** FACTORS THAT INFLUENCE BLOOD PRESSURE

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________ IS A MECHANISM THAT DOES NOT HELP REGULATE BLOOD PRESSURE

DURAL SINUS REFLEX

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THE VELOCITY OF BLOOD FLOW IS

SLOWEST IN THE CAPILLARIES BECAUSE THE TOTAL CROSS SECTIONAL AREA IS THE GREATEST

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BLOOD FLOW THROUGH THE ENTIRE VASCULAR SYSTEM IS EQUIVALENT TO ____ ____

CARDIAC OUTPUT ***CORRECT STATEMENT ABOUT BLOOD FLOW

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A THROMBUS (BLOOD CLOT) IN THE FIRST BRANCH OF THE ARCH OF THE AORTA WOULD AFFECT THE FLOW OF BLOOD TO THE

RIGHT SIDE OF THE HEAD AND NECK AND RIGHT UPPER ARM

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CEREBRAL BLOOD FLOW IS REGULATED BY

INTRINSIC AUTOREGULATORY MECHANISMS

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A PATIENT WITH ESSENTIAL HYPERTENSION MIGHT HAVE PRESSURES OF 200/120mm Hg. THIS HYPERTENSIVE STATE COULD RESULT IN ALL OF THE FOLLOWING CHANGES ____ _____ ____ AND NOT

INCREASED WORK OF THE LEFT VENTRICLE INCREASED INCIDENCE OF CORONARY ARTERY DISEASE INCREASED DAMAGE TO BLOOD VESSEL ENDOTHELIUM AND NOT DECREASED SIZE OF THE HEART MUSCLE

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THE SHORT TERM CONTROLS OF BLOOD PRESSURE MEDIATED BY THE NERVOUS SYSTEM AND BLOOD NORNE CHEMICALS PRIMARILY OPERATE VIA ____ _____ ____ AND NOT ______

REFLEX ARCS INVOLVING BARORECEPTORS REFLEX ARCS ASSOCIATED W/VASOMOTOR FIBERS CHEMORECEPTORS AND NOT ALTERING BLOOD VOLUME

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SECONDARY HYPERTENSION CAN BE CAUSED BY

ARTERIOSCLEROSIS

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WHERE IN THE BODY WOULD YOU FIND LOW OXYGEN LEVELS CAUSING VASOCONSTRICTION AND HIGH LEVELS CAUSING VASODILATION

LUNGS

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NORMAL AVERAGE BLOOD PRESSURE FOR A NEWBORN BABY IS

90/55

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IF BLOOD PRESSURE IS ALMOST NORMAL IN A PERSON WHO HAS LOST BLOOD DOES THAT MEAN THE TISSUES ARE RECEIVING ADEQUATE BLOOD FLOW

NOT NECESSARILY

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WHAT DO THE DUCTUS ARTERIOSUS AND THE FORAMEN OVALE BECOME AT BIRTH

LIGAMENTUM ARTERIOSUM; FOSSA OVALIS

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A _____________ WOULD NOT RESULT IN THE DILATION OF THE FEEDER ARTERIOLES AND OPENING OF THE PRECAPILLARY SPHINCTERS IN SYSTEMIC CAPILLARY BEDS

A LOCAL INCREASE IN HISTAMINE

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ARTERIOLE BLOOD PRESSURE INCREASES IN RESPONSE TO ALL BUT

FALLING BLOOD VOLUME

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Created by: TRESCEE