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WHAT IS THE ADJUSTMENT OF BLOOD FLOW TO EACH TISSUE IN PROPORTION TO ITS REQUIREMENTS AT ANY POINT IN TIME
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THE CEREBRAL ARTERIAL CIRCLE (CIRCLE OF WILLIS) IS AN ARTERIAL__________
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A&P 2 CH-19
BLOOD VESSELS
| Question | Answer |
|---|---|
| WHAT IS THE ADJUSTMENT OF BLOOD FLOW TO EACH TISSUE IN PROPORTION TO ITS REQUIREMENTS AT ANY POINT IN TIME | AUTOREGULATION |
| THE CEREBRAL ARTERIAL CIRCLE (CIRCLE OF WILLIS) IS AN ARTERIAL__________ | ANASTOMOSIS |
| T. OR F. THE OUTERMOST LAYER OF A BLOOD VESSEL IS THE TUNICA INTIMA | FALSE |
| T. OR F. THE THICK WALLED ARTERIES CLOSE TO THE HEART ARE CALLED MUSCULAR ARTERIES | FALSE |
| _______ IS GENERALLY CONSIDERED SYSTOLIC BLOOD PRESSURE THAT IS BELOW 100 mm Hg | HYPOTENSION |
| A ____ ______ IS A CUFF OF SMOOTH MUSCLE THAT REGULATES THE FLOW OF BLOOD INTO THE CAPILLARIES | PRECAPILLARY SPHINCTER |
| 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 |
| T. OR F. VASODILATION IS A WIDENING OF THE LUMEN DUE TO SMOOTH MUSCLE CONTRACTION | FALSE |
| THE ______ ______ DOES NOT DIRECTLY SERVE THE METABOLIC NEEDS OF BODY TISSUES | PULMONARY CIRCULATION |
| IN _______ AND _______ CONGENITAL VASCULAR PROBLEMS ARE LESS COMMON THAN CONGENITAL HEART DISEASE | INFANTS & YOUNG PEOPLE |
| THE MOST COMMON FORM OF SHOCK IS | HYPOVOLEMIC SHOCK |
| EVERY MINUTE ABOUT 1.5ml OF FLUID LEAKS OUT OF THE_______ | CAPILLARIES |
| PERIPHERAL RESISTANCE | INCREASES AS BLOOD VISCOSITY INCREASES |
| BRAIN BLOOD FLOW AUTOREGULATION | IS ABOLISHED WHEN ABNORMALLY HIGH CO2 LEVELS PERSIST |
| BLOOD FLOW TO THE SKIN | INCREASES WHEN ENVIROMENTAL TEMPERATURE RISES |
| ______ AND _____ REFLECT THE BALANCE (OR IMBALANCE) BETWEEN THE DIRECTION AND AMOUNT OF FLUID THAT FLOWS ACROSS THE CAPILLARY WALLS | HYDROSTATIC AND OSMOTIC PRESSURE |
| 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 |
| WHICH TUNIC OF AN ARTERY IS MOST RESPONSIBLE FOR MAINTIANING BLOOD PRESSURE AND CONTINUOUS BLOOD CIRCULATION | BLOOD CLOTTING |
| ______ DOES NOT INFLUENCE ARTERIAL PULSE RATE | THE VESSEL SELECTED TO PALPATE |
| ______ ______ _____ ARE DIRECTLY INVOLVED IN PULMONARY CIRCULATION | RIGHT VENTRICLE, PULMONARY ARTERY, LEFT ATRIUM |
| HISTOLOGICALLY THE _____ IS SQUAMOUS EPITHELIUM SUPPORTED BY A SPARSE CONNECTIVE TISSUE LAYER | TUNICA INTIMA |
| THE ARTERIES THAT DIRECTLY FEED INTO THE CAPILLARY BEDS ARE CALLED | ARTERIOLES |
| FENESTRATED CAPILLARIES | ARE NOT FOUND IN THE BRAIN |
| MODIFIED CAPILLARIES THAT ARE LINED WITH PHAGOCYTES ARE CALLED | SINUSOIDS |
| FACTORS THAT AID VENOUS RETURN INCLUDE ____ ____ ____ AND NOT _____ | ACTIVITY OF SKELETAL MUSCLES, PRESSURE CHANGES IN THE THORAX AND VENOUS VALVES AND NOT URINARY OUTPUT |
| WHAT BLOOD PRESSURE WOULD BE INDICATIVE OF HYPERTENSION | 170/96 IN A 50 YEAR OLD MAN |
| EXCESS RED CELL PRODUCTION WOULD CAUSE A _____ _____ INCREASE | BLOOD PRESSURE ** FACTORS THAT INFLUENCE BLOOD PRESSURE |
| ________ IS A MECHANISM THAT DOES NOT HELP REGULATE BLOOD PRESSURE | DURAL SINUS REFLEX |
| THE VELOCITY OF BLOOD FLOW IS | SLOWEST IN THE CAPILLARIES BECAUSE THE TOTAL CROSS SECTIONAL AREA IS THE GREATEST |
| BLOOD FLOW THROUGH THE ENTIRE VASCULAR SYSTEM IS EQUIVALENT TO ____ ____ | CARDIAC OUTPUT ***CORRECT STATEMENT ABOUT BLOOD FLOW |
| 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 |
| CEREBRAL BLOOD FLOW IS REGULATED BY | INTRINSIC AUTOREGULATORY MECHANISMS |
| 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 |
| 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 |
| SECONDARY HYPERTENSION CAN BE CAUSED BY | ARTERIOSCLEROSIS |
| WHERE IN THE BODY WOULD YOU FIND LOW OXYGEN LEVELS CAUSING VASOCONSTRICTION AND HIGH LEVELS CAUSING VASODILATION | LUNGS |
| NORMAL AVERAGE BLOOD PRESSURE FOR A NEWBORN BABY IS | 90/55 |
| 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 |
| WHAT DO THE DUCTUS ARTERIOSUS AND THE FORAMEN OVALE BECOME AT BIRTH | LIGAMENTUM ARTERIOSUM; FOSSA OVALIS |
| 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 |
| ARTERIOLE BLOOD PRESSURE INCREASES IN RESPONSE TO ALL BUT | FALLING BLOOD VOLUME |
Created by:
TRESCEE