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BIO 102 > Circulatory System > Flashcards

Circulatory System Flashcards

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Biology 101 flashcards
1
Q

What is another name for Circulatory system?

A

Transport System

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2
Q

What is Circulatory system?

A

It is the movement of metabolic materials from where they are produced to where they are used, stores & eliminated.

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3
Q

What is the need for Transportation

A

•Distribution of nutrients
•Elimination of waste
•Distribution of hormones
•Distribution of respiratory gases

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4
Q

Medium of Transportation

A

•Cytoplasm
•Blood

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5
Q

What are some methods of Transportation?

A

•Diffusion
•Osmosis
•Transpirational pull
•Active transport

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6
Q

Humans transport system is through what?

A

Blood & Lymphatic system

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7
Q

How many litres of blood does the adult body contain?

A

4-5 litres

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8
Q

Blood flows through what?

A

Vessels

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9
Q

Blood vessels

A

•Arteries
•Veins
•Capillaries

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10
Q

Functions of blood

A

•Delivers O2 to throughout the body
•Transports nutrient absorbed by the GI tract
•Protects the body from infection
•Maintains body temperature and chemical balance

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11
Q

Contents of blood

A

•Plasma 55%
•White blood cells and Platelets 4%
•Red blood cells 41%

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12
Q

Erythrocytes are?

A

Red blood cells

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13
Q

Leukocytes are?

A

White blood cells

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14
Q

Thrombocytes are?

A

Platelets

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15
Q

What are Blood Cells?

A

Blood cells are the cellular components of blood, each with specific functions.

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16
Q

What is Haemoglobin?

A

It is a protein that facilitates transport of oxygen and carbon dioxide in the body.

17
Q

What is the lifespan of RBCs?

A

approx. 120 days

18
Q

What blood cell is responsible for immune defense and in responses?

A

White Blood Cells

19
Q

What is the life span of WBCs?

A

Varies; few hours, days or years

20
Q

Which white blood cell can live for years?

A

Memory Lymphocytes

21
Q

What facilitates the blood clotting to prevent excess bleeding?

A

Platelets

22
Q

What is the lifespan of Platelets?

A

7-10 days

23
Q

Old or damaged platelets are removed by what?

A

The Spleen

BIO 102 (3 decks)

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