Systemic Circulation

Question 1

What are conducting arteries?

Answer 1

Carry blood from the heart to other organs.

Question 2

What are distributing arteries?

Answer 2

Medium sized arteries

Question 3

If arteries have high elastin component then what happens?

Answer 3

High elastin component dampens the blood pressure from heart contractions

Question 4

Capillaries are large enough for ____________ to pass along one at a time.

Answer 4

erythrocytes

Question 5

What does the merging of venules form?

Answer 5

Larger blood vessels called tributaries

Question 6

What do veins carry?

Answer 6

Carry blood from tissues back to the heart.

Question 7

Where is the vasa vasorum located?

Answer 7

In the walls of larger blood vessels.

Question 8

What does the vasa vasorum do?

Answer 8

Supplies oxygen and nutrients to those larger blood vessels.

Question 9

Which tunica of the artery is the most thick?

Answer 9

Tunica media

Question 10

Which tunica is the most elastic?

Answer 10

Tunica media

Question 11

Which muscle is part of the artery wall? What does it do?

Answer 11

Smooth muscle, vasoconstriction/dilation

Question 12

Which tunica of the artery is mostly collagen fibers?

Answer 12

Tunica externa.

Question 13

What does the tunica externa do?

Answer 13

Protects vessels, anchors it to surrounding structures.

Question 14

Which are considered resistance vessels?

Answer 14

Arterioles

Question 15

Which are considered exchange vessels?

Answer 15

Capillaries

Question 16

What plays a key role in regulating blood flow into capillaries?

Answer 16

Arterioles

Question 17

Capillaries connect which 2 things?

Answer 17

Connects arterioles and venules

Question 18

No capillaries are found in the……

Answer 18

Lining epithelia, cornea, lens and cartilage.

Question 19

Which tunicas does the capillary have/not have?

Answer 19

Have - tunica interna

DONT HAVE - no tunica externa and media

Question 20

What type of epithelium are the capillaries?

Answer 20

Simple Squamous Epithelium

Question 21

1 metaarteriole supplies _______ capillaries.

Answer 21

10-100

Question 22

Where do the venules collect/drain blood from?

Answer 22

collects from several capillaries, drains into veins

Question 23

How is the pumping of venous blood back to the heart done through?

Answer 23

its done thru pumping of the heart, contraction of skeletal muscles in lower limbs, valve found in the veins.

Question 24

Each valve has _________ folds of tunica interna forming cusps projecting towards the heart.

Answer 24

2 or more

Question 25

Venous valves have 2 or more folds of tunica ________.

Answer 25

interna

Question 26

At rest what is 60% of blood volume?

Answer 26

Veins/venules

Question 27

Where does the splenic artery go?

Answer 27

To the spleen and pancreas and greater curvature of stomach.

Question 28

What does the common hepatic artery supply?

Answer 28

the liver, gallbladder, stomach, and duodenum.

Question 29

Where does the short gastric lead to?

Answer 29

to the fundus of the stomach

Question 30

What does the proper hepatic artery lead to?

Answer 30

To the liver and gallbladders

Question 31

Which arteries lead to the greater omentum?

Answer 31

left gastroepiploic artery and right gastric artery

Question 32

Where does the gastroduodenal artery branch to?

Answer 32

To the greater curvature, duodenum, and pancreas.

Question 33

Which spinal is the superior mesenteric at?

Answer 33

inferior to the celiac trunk at L1

Question 34

What does the superior mesenteric supply?

Answer 34

Most of the small and large intestine, and head of the pancreas

Question 35

What does the inferior mesenteric supply?

Answer 35

most of the lower large intestines

Question 36

Three suprarenal arteries arise from either the….. (3)

Answer 36

abdominal aorta, inferior phrenic artery, renal artery

Question 37

Testicular/ovarian arteries is at which spinal?

Answer 37

L2

Question 38

Where does the phrenic artery go?

Answer 38

to diaphragm and adrenal glands

Question 39

Common iliac veins form the inferior vena cava at the level of ______

Answer 39

L5

Question 40

What does the superior vena cava drain?

Answer 40

Head neck and upper limbs, drains intercostal lumbar regions by a collection of veins called azygos system

Question 41

Hepatic veins from the liver drain into…

Answer 41

the inferior vena cava

Question 42

How is the portal (hepatic) vein formed?

Answer 42

by the junction of the superior mesenteric and splenic veins

Question 43

What does the portal system do?

Answer 43

Detours blood from the GI organs and spleen through the liver before going into the inferior vena cava. Also, transports the absorbed digested material to the liver.