Lesson 5 - Patterns Of The Blood Flow

Question 1

Where would the body send blood if there were limited supply or pressure (priority list)?

Answer 1

1. ) Heart (pumps blood around the body)
2. ) Brain
3. Digestive System - The body needs nutrients for cellular respiration. Nutrients supply for the chemical reactions that occur in cells. Cellular respiration requires oxygen and glucose.
4. ) Kidneys - Filter waste and toxic products
5. ) Reproductive System - If you are able to sustain life, the next priority is reproduction.
6. ) Skeletal muscles/limbs

Question 2

What are some exceptions to the “priority list” that displays where the body would send blood during limited supply?

Answer 2

Some branches are located based on location and efficiency rather than the priority list. For example, although limbs are at the bottom of the list, arms are close to the heart, which means that it is more efficient to send blood down the arms before sending it down to the pelvis. If blood was sent around the body based on the “priority list”, it would be going down to the pelvis first and then the arms, which is not efficient.

Question 3

Where do the carotid arteries go?

Answer 3

The carotid arteries go up to the brain?

Question 4

Where do the subclavian arteries go?

Answer 4

The subclavian arteries, which have “clav” in them (similar to clavicle) go to the arms.

Question 5

What are the three arteries that go to the digestive system?

Answer 5

The coeliac artery, the anterior mesenteric artery, and posterior mesenteric artery.

Question 6

Which type of arteries supply the kidneys?

Answer 6

The renal arteries supply the kidneys.

Question 7

Where is the responsibility of the hepatic portal?

Answer 7

The hepatic portal is responsible for directing blood from parts of the gastrointestinal tract (digestive system) to the liver.

Question 8

What is the exception regarding the returning veins?

Answer 8

Returning veins are complementary, except that there are two venae cavae instead of one aorta, and the digestive system returns via the liver and hepatic vein. The names of the complementary veins are typically the same as the arteries, except jugular veins return blood from the 
head (carotid arteries bring it to the head). Note the symmetry, not 
found in the arterial system.
There aren’t any veins that correspond to the arteries of the digestive system as they go through the hepatic portal veins. This is in reverse compared to when the arteries were sending blood to various areas of the body as veins send blood back to the heart.