Brainscape's Knowledge GenomeTM

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


See full index

Biology AS > 3.2 Transport in Animals > Flashcards

3.2 Transport in Animals Flashcards

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

Transport

A

The movement of oxygen, nutrients, hormones, waste and heat around the body

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

Double circulatory system

A

When the blood passes through the heart twice with each circuit
2 cycles - systemic and pulmonary cycles

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

GOOOD transport systems depend on

A

Size
SA:vol ratio
Metabolic activity

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

Effective transport systems have

A

Fluid (blood)
Pump (heart)
Exchange surface (capillaries)

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

Advantages of double circulatory system

A

Heart can increase pressure of blood when it goes to body
Systemic circulation can be at high pressure - flows faster to tissues
Pulmonary circulation at low pressure - capillaries not damaged

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

Cycle of blood in fish

A

Heart gills tissues heart

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

Why do fish have a single circulatory system

A

Less metabolically active
Do not regulate body temp
Enough oxygen for their needs

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

Insects - heart pumps blood by ….. To ….

A

Heart pumps blood by peristalsis to head

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

Apex

A

Bottom of the heart that comes to a point

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

Myocardial infarction is a raunchy name for

A

heart attack

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

Cardiac muscle

A

What the heart is made of

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

Coronary arteries

A

Lie on the surface of heart

Supply cardiac muscle with oxygen for aerobic respiration

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

Semilunar valves

A

Valves that prevent blood from returning to the heart as the ventricles relax (LV - aorta, RV - pulmonary artery)

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

Valve between LA and LV

A

Mitral/bicuspid/left atrio-ventricular

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

Valve between RA and RV

A

tricuspid / right atrioventricular

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

Arteries

A

High pressure
Away from heart
Small lumen
Thick wall

17
Q

Arteriolar

A

Between artery and capillary
Contract to constrict diameter
Increase resistance to flow
Reduce rate of flow of blood

18
Q

Tunica intima

A

Thin layer of elastic

walls stretch and recoil to maintain pressure

19
Q

Tunica media

A

Thick layer of smooth muscle

20
Q

Tunica adventitia

A

Relatively thick layer of collagen and elastic tissue
Collagen Provides strength
Elastic recoils to maintain pressure

21
Q

Capillaries

A

Narrow lumen (same as RBC 7um)
1 layer of epithelial cells
Leaky George walls (allow plasma and dissolved substances to leave the heart)

22
Q

Venules

A

From capillaries to veins

23
Q

Veins

A

To heart
Low pressure
Large lumen - ease blood flow
Thin walls - no need to stretch, recoil or reduce blood flow
Have valves - veins can be squished to send blood through valves

24
Q

Endothelium

A

A tissue that lines the inside of a structure eg. A blood vessel

25
Q

Role of endothelium

A

Reduce friction which would slow down blood flow

Biology AS (6 decks)

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