blood vessels regulation of heart ratestecklescience.weebly.com/.../23227308/blood_vessel... ·...

CARDIOVASCULAR SYSTEM Blood Vessels In the heart, the stroke volume remains relatively ______________________________. According to Starlings Law, the more a cardiac muscle is __________________________ the stronger the __________________________________. If you want to change the cardiac output you must change the _________________________________. REGULATION OF HEART RATE Increase the heart rate • Sympathetic Nervous System o o • Hormones o o • • Decrease the heart rate • • • BLOOD VESSELS • • •

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Page 1: Blood Vessels REGULATION OF HEART RATEstecklescience.weebly.com/.../23227308/blood_vessel... · VARIATIONS IN BLOOD PRESSURE Normal • • Hypotension • • Hypertension • •

CARDIOVASCULARSYSTEMBloodVessels

Intheheart,thestrokevolumeremainsrelatively______________________________.Accordingto

StarlingsLaw,themoreacardiacmuscleis__________________________thestrongerthe

__________________________________.Ifyouwanttochangethecardiacoutputyoumustchangethe

_________________________________.

REGULATIONOFHEARTRATE

Increasetheheartrate

• SympatheticNervousSystem

• Hormones

•

Decreasetheheartrate

•

BLOODVESSELS

•

THREELAYERS(TUNICS)

• Tunicaintima

• Tunicamedia

• Tunicexterna

DIFFERENCESBETWEEENBLOODVESSELS

Thewallsofthearteriesarecomposedof_______________________muscletohelpmove__________________.Theskeletalmuscleshelp“____________________”thebloodofthe___________________backtotheheart.Thewallsofthecapillariesareonly______cellthicksotherecanbeexchangebetweenthebloodandthetissues.Mostofthearterialbloodispumpedbythe______________________

___________________preventbackflowintheveins.

Page 3: Blood Vessels REGULATION OF HEART RATEstecklescience.weebly.com/.../23227308/blood_vessel... · VARIATIONS IN BLOOD PRESSURE Normal • • Hypotension • • Hypertension • •

Capillarybedsallowforeasyexchangebetweenthe

________________________andthe_________________________________.

Oxygenandnutrientswillpassintothe__________________while

wastesandcarbondioxidewillpassfromthecellintothe

_____________________.

Page 4: Blood Vessels REGULATION OF HEART RATEstecklescience.weebly.com/.../23227308/blood_vessel... · VARIATIONS IN BLOOD PRESSURE Normal • • Hypotension • • Hypertension • •

Pulseisthepressurewaveofthe_____________________________Measureat“__________________________________”wherepulseiseasilypalpated.Theaveragenumberofheartbeatsperminuteis_______________________

Page 5: Blood Vessels REGULATION OF HEART RATEstecklescience.weebly.com/.../23227308/blood_vessel... · VARIATIONS IN BLOOD PRESSURE Normal • • Hypotension • • Hypertension • •

BloodPressureisameasurementmadebyhealthprofessionalsonthelarge_____________________SystolicDiastolicWhathappenstothepressureasthedistancefromtheheartincreases?

Page 6: Blood Vessels REGULATION OF HEART RATEstecklescience.weebly.com/.../23227308/blood_vessel... · VARIATIONS IN BLOOD PRESSURE Normal • • Hypotension • • Hypertension • •

FACTORSAFFECTINGBLOODPRESSURE

NeuralFactors

•

RenalFactors

•

Temperature

•

• Chemicals

• Diet

VARIATIONSINBLOODPRESSURE

Normal

•

Hypotension

•

• Hypertension

•

DEVELOPMENTALASPECTS

Asimpletubeformsandisreadytopumpbythe_______week.Theheartbecomesafour‐chamberedorganbytheendofthe_______week.Thereareveryfewstructuraldifferencesafterthe_______week.

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Orthostatic Hypotension in Elderly - HKGShkgs.org/IHGM/IHGM_YL_Cheng_elaine_30_Nov_2012.pdf · blood goes down from the chest to the distensible venous capacitance system below the

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IDS amendments (manuf statements etc) · both vasodilators that can lower blood pressure. Concomitant use of these two drug classes can potentially cause symptomatic hypotension (see

Blood Pressure Management in the Elderly...Blood Pressure Management in the Elderly ... Increase venous return Increase cardiac output Orthostatic Hypotension. As we age, the following