Crash Course A&P #27-28 -Blood Vessels

Crash Course A&P #27-28 -Blood Vessels

Please watch the video clips and answer the following questions!

Multiple Choice

Your circulatory system is more than just your heart.

• True

• False

Multiple Choice

Arteries carry blood ___ the heart.

• away from

• to

Multiple Choice

Veins carry blood ___ the heart.

• away from

• to

Multiple Choice

The cells of the endothelium are smooth, epithelial cells that line the blood vessels and continue on into the ___.

• heart

• stomach

• liver

• lungs

Multiple Choice

“The smaller the diameter of the blood vessel, the ___ it is for blood to move through it."

• harder

• easier

Multiple Choice

Blood leaves the left ventricle through the ___, the body’s largest artery.

• aorta

• tunica media

• brachial artery

• capillaries

Multiple Choice

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.

• capillaries

• arterioles

• veins

Multiple Choice

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.

• venous valves

• arterial valves

• holes

• sphincters

Multiple Choice

In the amount of time it took you to watch this video, your body probably circulated about ___ L of blood.

• 25

• 52

• 30

• 42

Multiple Choice

You are more likely to die from diseases related to your ___than anything else.

• cardiovascular system

• respiratory system

• digestive system

• integumentary system

Multiple Choice

Hypertension is the term for chronic ___ blood pressure.

• high

• low

Multiple Choice

___ adults in the U.S. has high blood pressure.

• 1 in every 3

• 2 in every 5

• 1 in every 8

• 2 in every 3

Multiple Choice

___is anything that hinders flow or increases friction.

• resistance

• receptivity

• acceptance

• homeostasis

Multiple Choice

In most people, the biggest factor that affects resistance has to do with vessel __.

• diameter

• length

• volume

• height

Multiple Choice

The ventricles of the heart create very ___ pressure while the atria tend to have ___ pressure.

• high; low

• low; high

• high; high

• low; low

Multiple Choice

Your brain can help you deal with wonky blood pressure by altering the distribution of blood flow around the body, or by changing the ___ of certain blood vessels.

• diameter

• length

• volume

• height

Multiple Choice

Other short-term effects on your blood pressure come from your ___. A great example of this is in your adrenaline response.

• hormones

• organs

• blood volume

• nerves

Multiple Choice

The best way to deal with long-term blood pressure issues is by changing blood ___

• volume

• output

• weight

• speed

Multiple Choice

Arteriosclerosis occurs when your arteries become more ___.

• soft

• hardened

Multiple Choice

An aneurysm occurs when a blood vessel leaks or __.

• burst

• expands

• dilates

• restricts