Unit 4- Special Cardiovascular

Question 1

Define portal venous system

Answer 1

a vein that originates in one capillary bed and terminates into another capillary bed without an artery between them

Question 2

Define hepatic portal venous system

Answer 2

From capillary bed of
digestive organ to capillary
bed of liver

Question 3

If a branch of SMA supplied part of an organ, what vein drains that part?

Answer 3

Superior Mesenteric Vein

Question 4

If a branch of IMA supplied part of an organ, what vein drains that part?

Answer 4

Inferior Mesenteric Vein

Question 5

Name the two veins that combine to form the hepatic portal vein

Answer 5

Superior Mesenteric Vein and Splenic Vein

Question 6

Were does the Inferior Mesenteric Vein typically connect to the hepatic portal venous system?

Answer 6

Splenic Vein

Question 7

Porta hepatis is another name for the opening (or hilum) of the liver through which structures enter or exit. Does the follow structure enter or exit and what does it carry from where?

Common Hepatic A.

Answer 7

Enters

Carries arterial blood from abdominal aorta to liver

Question 8

Porta hepatis is another name for the opening (or hilum) of the liver through which structures enter or exit. Does the follow structure enter or exit and what does it carry from where?

Hepatic Portal Vein

Answer 8

Enters

Carries venous blood from digestive organs to liver

Question 9

Porta hepatis is another name for the opening (or hilum) of the liver through which structures enter or exit. Does the follow structure enter or exit and what does it carry from where?

Common Hepatic Duct

Answer 9

Exits

Carries bile from liver

Question 10

List 5 Functions of the Liver

Answer 10

1. Microbes and weakened red blood
   cells destroyed
2. Nutrients removed; processed;
   stored
3. Drugs/alcohol detoxified
4. Hormones modified
5. Important proteins (including blood
   clotting proteins) added

Question 11

Coronary arteries bring blood to the heart tissue itself. Name the valve from above which the 2 coronary arteries branch.

Answer 11

Aortic Semilunar Valve

Question 12

What are the 2 branches of the left coronary artery that we study?

Answer 12

1. Anterior Interventricular Artery
2. Circumflex Artery

Question 13

What are the 2 branches of the right coronary artery that we study?

Answer 13

1. Marginal Branch
2. Posterior Interventricular Artery

Question 14

What is the coronary sinus?

Answer 14

where the three major tributaries of coronary veins drain into

(Great Cardiac Vein, Middle Cardiac Vein, and Small Cardiac Vein)

Question 15

What chamber of the heart does the coronary sinus drain into?

Answer 15

Right Atrium

Question 16

What is the fundamental difference between fetal circulation of blood and circulation after birth?

Answer 16

Before- do not use the lungs; 2 parts of the fetal heart allow blood to
bypass the lungs:
* Foramen Ovale
* Ductus Arteriosus

After- traditional circulation as already discussed

Question 17

Define foramen ovale

Answer 17

allows blood to flow from the right atrium to the left atrium

Question 18

Define Ligamentum Arteriosum

Answer 18

what ductus arteriosus turns into months following birth

Question 19

Compare Umbilical Arteries and Veins

Answer 19

Umbilical Veins- returns toward heart and empties into IVC

Umbilical Arteries- carry blood to the placenta for oxygenation

Question 20

What is the remnant of the Ductus Arteriosus after birth?

Answer 20

Ligamentum Arteriosum

Question 21

What is the remnant of Foramen Ovale after birth?

Answer 21

Fossa Ovalis

Question 22

What is the remnant of the Umbilical Vein after birth?

Answer 22

Ligamentum Teres Hepatis

Question 23

What is the remnant of the Umbilical Arteries after birth?

Answer 23

Umbilical Ligaments

Question 24

Draw the flow chart for the hepatic portal system

Answer 24

Check page 222 in lab manual