Cardio respiratory System

Introduction

Cardiorespiratory System Unit

• Cardiovascular System• Heart• Blood Pressure• Exercise• Diseases• Respiratory System

BROKEN HEART SYNDROME

Is there such a thing a broken heart?

Cardiovascular SystemOverview A ______ chambered muscular pump Located in the _______________________ Connected to an extensive system of blood

vessels which brings _________ and __________ to all body cells and removes wastes

Outputs ___________of blood per minute at rest

The system maintains body temperature and appropriate fluid levels to prevent dehydration

Vascular System

• Arteries and arterioles– ______________________________________

• Capillaries– _______________________________________

• Veins and venules– _______________________________________

The Heart

specialized muscle tissue called cardiac muscle or __________________a muscle that requires _____delivery and ________________it is the size of a fist (approximately) 250 – 300 gramsconsidered a _______________________

_____ chambers________________________________ ________________________________

The Heart

__________side pumps deoxygenated blood (dark red) from ___________to the_______~ _________________________________ side pumps oxygenated blood (bright red) from the________to __________~ _________________________Coronary Circulation – coronary arteries and veins supply and drain the myocardium

Comparison of the Pulmonary and Systemic

Circulation

PULMONARY CIRCULATION Poorly oxygenated blood collects in the ______________________and the ________________________ The superior and inferior vena cava empty into the ______________ The ______________________(which brings blood back from the heart itself) also empties into the right atrium.

The right atrium is the______________of the two atria although it receives the same amount of blood.

The blood is then pumped through the ______________, or atrioventricular, valve into the __________________. The blood then is pumped through the pulmonary ______________ valve into the ____________________. This blood leaves the heart by ______________________and travels through the lungs (_____________________________) Then into the ________________________

SYSTEMIC CIRCULATION The oxygenated blood then enters the ________________. The blood then travels through the ____________________also called mitral or left atrioventricular valve, into the ______________________.

The left ventricle is _______________ and more muscular than the right ventricle because it pumps blood at a ______________ pressure.

Also, the right ventricle cannot be too powerful or it would cause ________________________in the lungs.

From the left ventricle, blood is pumped through the semi-lunar valve into the __________________. The blood then flows to the __________________________

And the Process Will Continuethe blood goes through peripheral tissues

They will ________________________from the blood, which will again be collected inside the _______________and the

process will continue. Peripheral tissues do not fully deoxygenate the blood, thus venous blood does have _________________only in a lower concentration in comparison to arterial blood. The release of oxygen from __________________is regulated.

The diffusion of oxygen from red blood cells increases with an increase of carbon dioxide in tissues, increase in temperature, or a decrease in pH.

Such characteristics are exhibited by tissues undergoing high metabolism, as they require increased levels of oxygen

Erythrocytes and Hemoglobin

• Bind and transport ______ and _______ in the blood– Amount of oxygen carried in blood depends on

________________________________(PO2)

– __________ in lungs, hemoglobin binds easily to oxygen,_________at tissues, unbinds oxygen - tissues

• Protein made up of iron

Next Up….

• Blood and Blood Pressure!• You will need to work through the handouts – The heart components– Systematic and pulmonary circulation– Blood vessels– Heart descriptions and functions– Vascular components worksheet