Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology: 3.1.2 Animal Transport > blood vessels > Flashcards

blood vessels Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

where do arteries carry blood from and to

A

from: the heart
to: rest of the body

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

what type of blood do arteries carry

A

oxygenated blood

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

what blood does the pulmonary artery carry

A

deoxygenated blood to the lungs

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

what is the first layer of blood vessels called

A

endothelium

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

why do arteries have a folded endothelium

A

allows them to expand and maintain high blood pressure

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

what is the layer after the endothelium

A

elastic layer

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

what do elastic fibres allow

A

stretch and recoil due to different volumes of blood

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

why do arteries have more elastic fibres than veins

A

carrying blood at a high pressure so maintains this

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the layer after elastic fibres called

A

smooth muscle

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

what does smooth muscle allow

A

contracts and relaxes size of the lumen

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

why do arteries have a thick smooth muscle layer

A

maintain high blood pressure

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

what is on the outer layer of blood vessels

A

collagen

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

what does collagen provide

A

structural support

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

what does collagen allow in blood vessels

A

their shape to be maintained

and manages the volume of blood in veins so they do not stretch too much and burst

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

what do arteries branch into

A

arterioles

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

how does the structure of arterioles differ from arteries

A

more smooth muscle

17
Q

what does the smooth muscles in arterioles allow

A

dilate and constrict blood flow into the capillaries

18
Q

what are capillaries used for

A

exchange of substances

19
Q

how does the structure of capillaries make it good for exchange

A

large surface area
small lumen
single layer for a short distance
gaps between cells

20
Q

what are venules

A

branches that lead from the capillaries to the veins

21
Q

do veins have a large or small lumen

A

large lumen

22
Q

what does veins large lumen allow

A

carrying a large volume of blood

23
Q

how do veins prevent backflow of blood

A

have valves present

Biology: 3.1.2 Animal Transport (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions