The journey
Name the two sub-systems of the circulatory system.
Pulmonary (to lungs), and systemic (to body)
How many major components make up our blood?
Four: plasma, platelets, white blood cells, red blood cells
These blood vessels carry blood away from the heart:
Arteries
What is your heart roughly the size of?
Your clenched fist
What is the term used to describe irregular heart beats?
Arrhythmia
Deoxygenated (low oxygen) blood returns to the heart using these TWO major veins:
The inferior (from lower body) and superior (upper body) vena cava
What is the function of red blood cells?
Transporting oxygen and carbon dioxide
True or false: arteries always carry oxygen rich blood.
False: the pulmonary artery is carrying low-oxygen blood to the lungs to be re-oxygenated.
How fast can a drop of blood travel through your circulatory system?
20-60 seconds
What is the gel like mass that can form in blood vessels called?
A blood clot (or thrombus)
What is the name of the blood vessel that carries oxygenated (oxygen rich) blood to the left atrium?
The pulmonary vein
Which component of blood is responsible for scabbing?
Platelets
How are arteries and veins connected?
By the capillaries
How many times does your heart beat per day? (Average estimate)
100,000 beats per day on average!
This is the name we give build up that forms on arterial walls:
Plaque
Imagine you are facing a fictional person, and can see the four chambers of their heart as they face you. Tell me the order of the four chambers starting from top-left and going clockwise.
Right atrium, left atrium, left ventricle, right ventricle
A majority of your blood is composed of what?
Plasma
This massive vessel is referred to as “the highway of the circulatory system” and is the width of a garden hose in the average human.
The aorta
Estimating to the nearest THOUSAND, how long is the average adult circulatory system in MILES?
60,000 miles!
The official term for “having high blood pressure”
Hypertension
What is the order that blood flows in the body? Include all chambers of the heart, the lungs, the body, pulmonary veins and arteries, the aorta, and the vena cava.
Vena cava->right atrium->right ventricle->pulmonary artery->lungs->pulmonary vein->left atrium->left ventricle->aorta->body->vena cava
What percent of your blood do white blood cells AND platelets make up?
<1%
List the blood vessels in order of thickest walls to thinnest walls. (Think about function and size)
Arteries, veins, capillaries
Can the heart keep beating if it is removed from the body?
Yes! The heart can beat for a short time using its own internal electrical impulses, as long as it has a supply of oxygen. (This has aided in successful heart transplants)
The general medical term for a heart attack is:
Myocardial infarction