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Biology > Biology Circulatory System (slide 12) > Flashcards

Biology Circulatory System (slide 12) Flashcards

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1
Q

What is “the circulatory system”?

A

the system of organs that assits the body in pumping blood to the body

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2
Q

Why is the circulatory system important?

A

-It aids the body in pumping the blood
on average it beats 72 beats/minute
pumps 5 liters of blood

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3
Q

The circulatory system is made up of one major organ and a network of blood
vessels

A

THE HEART

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4
Q

why do we want the heart and lungs close to each other

A

easier to exchange gases

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5
Q

Purpose:

A

pumps blood

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6
Q

Blood coming into the heart through the

A

superior and inferior vena cava

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7
Q

Once the right atrium is filled with enough blood

A

the right atrium is going to contract and squeeze the blood through a small valve

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8
Q

After the small valve it will got to (right atrium)

A

the RIGHT VENTRICLE
it will fill up with blood, expand, compress, and will push the blood to the pulmonary artery

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9
Q

if the blood is from the digestive system it is deoxygenated

A

the pulmonary artery will bring the blood to the lungs for gas exchange to make it oxygenated blood

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10
Q

After the blood is oxygenated

A

goes comes back through the pumansey veins
and goes to the Left Artrium

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11
Q

After the left Atrium it gets pumped to the left ventricle

A

and then it goes to the AORTS (BIGGEST/MAIN artery)

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12
Q

The left ventricle needs

A

a lot of power because it transport oxygenated blood to the entire body

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13
Q

Why do we have a two vena cavas?

A

efficiency to help the blood travel from the lower part of the body and the top part of our body.

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14
Q

Arteries

A

carry blood AWAY from the heart
“A”for away
high blood pressure
carry mostly oxgenated blood

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15
Q

Veins

A

Carry blood to the heart
-veIN for “in”
-LOW PRESSURE
they mostly carry deoxygenated blood

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16
Q

Capillaries

A

sight of diffusion & osmosis

17
Q

Capillaries ARTERY+VEIN

A

Artery mostly have oxygenated blood and veins mostly have deoxygenated blood. Capillaries do gas exchange and

18
Q

Red Blood Cell
Purpose:

A

transport gases

19
Q

white blood cells

A

protection & defence from foreign invaders.

20
Q

Platelets

A

Clot blood -If you cut your finger, they help to clot the blood

21
Q

Blood Plasma

A

mostly water, helps to dissolve, helps to carry minerals and GLUCOSE.

22
Q

55% of our blood is

A

plasma
-mostly water

23
Q

45% of our blood are

A

Red blood cells

24
Q

less than 1% of our blood is

A

White blood cells

25
Q

The circulatory system carries

A

the glucose and oxygen needed for cellular
respiration

26
Q

The circulatory system carries

A

the waste products of cellular respiration

27
Q

STSE – Medicine and Health-Atherosclerosis

A

Buildup of plaque in the arteries can slow or stop blood flow
If we are eating a lot of bad fats and cholesterol

28
Q

The role of the circulatory system
-exercise

A

helps the heart easily pump blood fast and easily

29
Q

The main structures of the circulatory system are: the heart and blood vessels.
a. List the four (4) chambers of the heart.
b. List the two types of blood vessels.
c. Which blood vessels carry oxygenated blood away from the heart? Which vessels carry
to the heart deoxygenated blood?

A

Four chambers: right atrium, right ventricle, left atrium, left ventricle
Arteries (carry oxygenated blood away from the heart) and Veins (carry deoxygenated blood to the
heart)

30
Q
  1. List the path blood travels when entering the heart and exiting to the rest of the body (note the
    type of blood in each chamber of the heart).
A

right atrium (deoxygenated), right ventricle (deoxygenated), left atrium (oxygenated), left ventricle
(oxygenated)

31
Q

Why is the heart important to cellular respiration?

A

The heart and blood transports the nutrients needed for cellular respiration.

32
Q

Using your understanding of the circulatory system, explain why blood pressure develops in an
individual. How can it be changed?

A

Blood pressure develops from the heart pumping blood throughout the body and the resistance from
the arteries.
It can be changed by many factors including sodium intake, exercise, and stress.

33
Q

Sickle-cell anemia is a disorder that affects the shape of red blood cells (it makes it more
difficult for oxygen to be picked up by red blood cells). Explain how this will impact someone’s
ability to participate in a marathon.

A

If the cell is deformed it will be unable to carry oxygen properly around the body which will reduce the
ability for a person to run a marathon.

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