“Blood Vessels, part 1 – Form and Function: Crash Course A&P #27”:
1. Your circulatory system is more than just your heart.
TRUE
FALSE
2. Three of the important functions of blood vessels include:
1. Delivering ____________________________ and nutrients to cells.
2. Carrying away __________________________________ products.
3. Taking part in maintaining __________________________________________.
3. Arteries carry blood
AWAY FROM
TO
the heart.
Veins carry blood
AWAY FROM
TO
the heart.
4. Bruising is evidence of _____________________________________ bleeding.
5. The cells of the endothelium are smooth, epithelial cells that line the blood vessels and continue on into the
__________________________.
6. “The smaller the diameter of the blood vessel, the _________________________ it is for blood to move through it.
7. Blood leaves the left ventricle through the ____________________________, the body’s largest artery.
8. These arteries get smaller and smaller arteries until they enter the smallest of vessels,
__________________________________________. This is where the exchange of gases, nutrients, and wastes occurs.
9. Three of the important functions of capillaries include:
1. Exchanging ____________________________ and gases.
2. Helping to regulate ______________________________________________.
3. Playing a role in maintaining your body ___________________________________.
10. Because the pressure leaving the capillaries, then entering the venules, and finally the veins is so low, many veins
have _______________________________ to help keep the blood from flowing backward.
11. In the amount of time it took you to watch this video, your body probably circulated about ________ L of blood.
“Blood Vessels, part 2: Crash Course A&P #28”:
1. You are more likely to die from diseases related to your ____________________________________ than anything
else.
2. Hypertension [chronic _____________________ blood pressure] can cause serious damage to both the
________________________ that creates the high pressure, and to the ________________________________ that
have to withstand that extra pressure.”
3. _______ in 3 adults in the U.S. has high blood pressure.
4. __________________________is anything that hinders flow or increases friction. In most people, the biggest factor
that affects resistance has to do with vessel ____________________________________.
5. The ventricles of the heart create very
HIGH
LOW
HIGH
LOW
pressure while the atria tend to have
pressure.
6. Your brain can help you deal with wonky blood pressure by altering the ____________________________ of blood
flow around the body, or by changing the ____________________________ of certain blood vessels.
7. Other short-term effects on your blood pressure come from your _______________________________. A great
example of this is in your _____________________________________________ response.
8. The best way to deal with blood pressure issues is by changing blood ______________________________.
9. An increase in blood flow or resistance leaves the heart struggling to do its job. The heart could deal with it by
becoming musclier. More ________________________________ requires more ________________________. The
body can’t create more blood vessels to deliver oxygen to the new muscles, so the muscle is hungry. A muscle who’s
nutrient supply is greatly diminished will slowly die. When it happens in your heart it’s called
_____________________________________________.
10. Arteriosclerosis occurs when your arteries become more _____________________________.
11. An aneurysm occurs when a blood vessel leaks or ____________________________.