The Heart
The number of hollow, muscular chambers in the heart
What is 4?
Blood vessels are complex systems, they are ...
CAROTID artery
My grandma starts complaining she is having chest pain, and we discover she is experiencing reduced blood flow, and therefore reduced oxygen supply to her heart tissue, which is weakening her heart cells without killing them. What is this called???
Angina
What are the 4 main components of blood?
Plasma
Leucocytes (white blood cells)
Platelets
Erythrocytes (red blood cells)
3 reasons we need a circulatory system are...
What is ... to transport
1. nutrients (glucose) 2. oxygen 3. carbon dioxide 4. hormones (insulin) 5. antibodies 6. wastes from metabolism 7. heat
A blood pressure that with: systolic 140 or greater and diastolic 90 or greater indicates...
What is HYPERTENSION
2) Increased volume of blood pumped per stroke (higher stroke volume)
3) As a result, even while at rest the heart will beat more frequently.
#3 is the lie.
As a result of the increased stroke volume, the heart contracts LESS frequently and at rest will beat as few as 40 times per minute.
When valves become weak and blood flows backwards through veins, what happens?
Veins bulge and create varicose veins
Can you list all the blood types? (including those differentiated by the Rh factor)
A-, A+, B-, B+, AB-, AB+, O-, O+
What is... a fluid filled membrane that surrounds the heart, reducing friction and anchoring it.
Veins carry __________ blood, except for the _________veins.
Arteries carry oxygenated blood, except for the pulmonary arteries.
Veins carry deoxygenated blood, except for the pulmonary veins.
When you are feeling your pulse, what are you actually feeling?
The bulge created when blood is gushing through your artery.
What 2 things can cause a stroke?
A blocked (ischemic) or ruptured (hemorrhagic) arteriole delivering oxygen to the brain.
Group _______ is the universal recipient, while group _______ is the universal donor.
Mrs. Corbett is chasing her dog Moose after he ran out of her backyard (AGAIN). Her heart rate picks up to 130 beats per minute and each beat pumps about 110 mL of blood through her body.
What is her cardiac output in litres per minute? (Round to the nearest litre.
CO= SV x HR
What is... 14 L per minute.
(14.3)
Blood pressure depends on two things: __________
What are volume (of blood the heart is pumping) and the resistance to blood flow caused by the narrow openings of arteries.
There are three types of circulation we talk about, what are they?
Systemic circulation: circulation of blood to and from all the other organs of the body
Coronary circulation: circulation of blood in the blood vessels of the heart
Atherosclerosis is the build up and eventual hardening of plaque inside arteries. This limits the flow of oxygenated blood to your body tissues. There is one artery in particular that is extra bad news if this happens, it even has its own disease name- which artery is it and what is the name of the disease?
Coronary artery... and coronary artery disease
HELP IM BLEEDING OUT, MY BLOOD TYPE IS AB-. WHO CAN HELP ME?
People with: O-, A-, AB-, B-
The blood flow order as blood pumps through the heart
Superior/Inferior Vena Cava TO right atrium To tricuspid valve TO right ventricle TO pulmonary semilunar valve TO pulmonary arteries TO lungs TO pulmonary veins TO left atrium TO bicuspid/mitral valve TO left ventricle TO aortic semilunar valve TO aorta TO body
The main function of arteries, veins and capillaries?
What is .. arteries: distribute oxygen-rich blood to your body, veins: move blood back to the heart, capillaries: site of nutrient, waste, and gas exchange by diffusion between blood and tissue
Label the full heart diagram Mrs. Corbett shows you correctly
You are walking down the street and someone shrieks "HELP, I AM HAVING A MYOCARDIAL INFARCTION". What is going on? Be specific.
They are having a heart attack. The lack of blood flow is stopping the oxygen supply to the heart tissue and killing heart cells.