Arteries, Veins and Blood Pressure Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Between veins and arteries, which ones have valves?

A

Veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Describe blood flow from the aorta to the inferior vena cava

A
  • out of aorta to medium-sized artery
  • then enters an arteriole
  • then enters a capillary
  • to venules
  • medium sized veins
  • inferior vena cava
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Arteries have 3 layers while capillaries have

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Arteries and ____ both have 3 layers.

A

Veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the first layer of an artery and/or vein called? What is its function?

A

Tunica Externa

connective tissue sheath. Anchors vessel to the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the second layer of an artery and/or vein called? What is its function?

A

Tunica Media

Smooth muscle. thicker in arteries. Helps control blood flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the third layer of an artery and/or veins called? What is its function?

A

Tunica Interna
Smooth inner layer that repels blood cells and platelets. Prevents blood clots
Simple squamous epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Arteries carry blood ____ from the heart while veins carry blood _____ to the heart.

A
Arteries = away from the heart 
Veins = back to the heart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Arteries have __________, which means they branch off into several vessels

A

bifurcations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Veins have _______, which means several vessels converge

A

anastosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Between arteries and veins, which one has low pressure? High pressure?

A

Low pressure = veins

High pressure = arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Arteries are mainly named after:

A

Bones, body region, organs which they pass by or carry blood to

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Veins are mainly named after:

A

arteries or organs they travel next to

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What types of vessels carry the most amount of blood during a resting state?

A

Veins (about 54%)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which vessels see the most pressure?

A

Arteries, namely the aorta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are venous valves?

A

One way valves. Relies on skeletal muscle

17
Q

What are varicose veins?

A

“Spider web veins” they are caused by distended veins.
Venous valves become incompetent
May lead to edema of foot or leg

18
Q

What is and what causes arteriosclerosis?

A

Any hardening of arteries (fatty acids, cholesterol, etc.) Produces plaque

19
Q

What is and what causes atherosclerosis?

A

Hardening of an artery (typically coronary artery) due to plaque build up

20
Q

Describe a normal venous return system

A

Blood from heart to capillary bed to heart

21
Q

Describe a portal system.

A

Blood from heart to capillary bed to another capillary bed to the heart

22
Q

What is the purpose of a portal system?

A

Blood will go through the abdominal organs then through the capillary beds in the liver to be cleaned out. Nutrient exchange and detoxification.

23
Q

What are some arteries in the head?

A
  • temporal artery

- internal/external cartoid

24
Q

What are some arteries in the arm?

A
  • axillary artery
  • brachial artery
  • radial artery
  • ulnar artery
25
Q

What are hepatic portals?

A

The intestine has its own set of veins. Large to small intestines to liver. Hepatic vein goes back to the heart

26
Q

What is the average resting heart rate?

A

72 bpm

27
Q

How do you find your resting heart rate?

A

Find vessel, count for 10 sec then mult by 6

28
Q

What is normal blood pressure?

A

120/80

29
Q

What does the 120 in 120/80 stand for?

A

Systolic pressure: Blood as it is ejected by the ventricles (contraction)

30
Q

What does the 80 in 120/80 stand for?

A

Diastolic pressure: Pressure after closing of valve (relaxation)

31
Q

What is the instrument that measures blood pressure called?

A

sphygmomanometer

32
Q

What is the first sound you hear when you are measuring someone’s blood pressure?

A

Systolic pressure (contraction of the ventricles)

33
Q

What is the second sound you hear when you’re measuring someone’s blood pressure?

A

Diastolic pressure (relaxation of the ventricles)

34
Q

Pulse pressure is measured by subtracting what two numbers?

A

Systolic - diastolic

Average = 40mmHg