L25

Question 1

Circulatory system divides into:

Answer 1

Closed: Cardiovascular system
Open: Lymphatic system

Question 2

Cardiovascular system function:

Answer 2

Delivers blood to and collects it from peripheral tissues and the lung

Question 3

Cardiovascular system consist of:

Answer 3

Heart, blood vessels

Question 4

Lymphatic system function:

Answer 4

Collects lymph from peripheral tissues and recycles it into the cardiovascular system

Question 5

Lymphatic system consist of:

Answer 5

Lymph vessels, lymph nodes

Question 6

Low 02, pulmonary circulation:

Answer 6

Between right heart and lung

Question 7

High 02, systemic circulation

Answer 7

Between left heart and peripheral tissues

Question 8

The heart consist of two pumps in series:

Answer 8

One to the lungs – arteries carry deoxygenated blood

One to the metabolising tissues – arteries carry oxygenated blood

Question 9

Wymień Functional parts of the cardiovascular system:

Answer 9

Heart
Pulmonary system
Systemic circulation (many compartments)

Question 10

Wymień compartments wraz z funkcją systemic circulation:

Answer 10

Arteries
Arterioles – the last arteries with muscular walls regulate local tissue flow
Microcirculation – exchange between blood and tissues through capillary walls
Venules and veins

Question 11

Distribution of blood in the cardiovascular system:

Answer 11

Large part is in the systemic (84%)
2/3 in the veins (64%)
The rest (Heart, Pulmonary, Large arteries, small arteries and Arterioles, and Capillaries the rest is respectively equally distributed

Question 12

Ohm’s Law

Answer 12

I=V/R 
In the cardiovascular system: 
I – flow (Q)
V – pressure difference ΔP
R – resistance (R)

Question 13

Flow R~=

Answer 13

Densitydiametervelocity/viscocity

Question 14

Flow laminar

Answer 14

Smaller vessels (low Reynolds number)

Question 15

Flow turbulent

Answer 15

Large vessels (high Reynolds number)
Heart sounds and murmurs

Question 16

Viscosity:

Answer 16

Physical property of fluids, depends on its density and particle size []
Flow: Q=1/n
Viscosity ^^ => Flow zmniejsz.

Question 17

Viscosity of the blood is determined by ….

Answer 17

Its haematocrit ratio:
Haematocrit= erythrocyte volume/whole blood volume
Anaemia- n zmniejsz; polycythemia – n ^^

Question 18

Do składowych Mean pressure wg. Ohm’s Law należą:

Answer 18

Cardiac output

Peripheral resistance

Question 19

Do składowych Pulse pressure należą:

Answer 19

Stroke volume,

Arterial compliance

Question 20

Poiseuille’s Law:

Answer 20

Q= k ΔP*r^4/n*L
Gdzie: k- constant (Pi/8)
r- radius
L- length
N - viscosity

Question 21

Z Poiseuille’s Law i Ohm’s Law:

Answer 21

R~= n*L/r^4
Increase with viscosity and vessel length
Decrease with radius

Question 22

Net filtration =

Answer 22

Hydrostatic pressure – oncotic pressure (Starling’s hypothesis)

Question 23

Filtrated fluid =

Answer 23

Reabsorbed fluid + lymph

Question 24

Edema is caused by …

Answer 24

High hydrostatic pressure or low oncotic pressure

Question 25

The three main controlled parameters in the regulation in the cardiovascular system:

Answer 25

Tissue blood flow
Cardiac output
Arterial blood pressure