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Kin > Cardiovascular and respiratory systems > Flashcards

Cardiovascular and respiratory systems Flashcards

1
Q

The cardiovascular system is composed of:

A

Heart, blood vessels, and blood

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2
Q

The function of the cardiovascular system

A
  • deliver oxygen, fuel and nutrients to tissues
  • removes carbon dioxide and waste products
  • maintains constant body temp
  • prevents infection
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3
Q

Your right heart pumps ____

A

deoxygenated blood to lungs (pulmonary circulation)

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4
Q

Your left heart pumps ____

A

oxygenated blood to your body (systemic circulation

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5
Q

Cardiac Cycle

A
  • your heartbeat in two phases (diastole phase and Systole phase)
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6
Q

Parts of your Vascular system

A
  • Arteries
    -Capillaries
    -Veins
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7
Q

what carries blood away from the heart

A

Arteries

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8
Q

What returns blood to the heart

A

veins

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9
Q

What is responsible for the exchange and nutrients with the tissues

A

capillaries

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10
Q

Frank-Starling Law

A

Ability of the heart to stretch and increase the forces pf contraction

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11
Q

Blood Pressure

A

The force exerted by blood against the walls of the arteries

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12
Q

Normal blood preassure

A

120mmHg over 80mmHg

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13
Q

Respiratory system is in two zones:

A
  • Conductive Zone
  • Respiratory Zone
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14
Q

Conductive Zone

A

structures that transport air to the lungs
- mouth, larynx, trachea ect.

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15
Q

Respiratory Zone

A

exchange of gases
- respiratory bronchioles
- Alveolar ducts
-Alveolar sacs

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16
Q

Mechanism of breathing

A
  • Inspiration
  • expiration
17
Q

Inspiration

A

is the contraction of the diaphragm

18
Q

Expiration

A

air is expelled and thoracic cavity is reduced

19
Q

Ventilation

A

is the volume of air moved by the lungs in 1 minute

20
Q

Respiratory control centers

A
  • inspiratory centre(medulla oblongata)
    -expiratory centre (Medulla oblongata)
  • Pneumotaxic and apneustic centres
21
Q

Static lung volumes

A

determined by structure of the lung
- Tidal volume
- total Lung capacity
- Vital Capacity
- Residual volume

22
Q

Dynamic lung volumes

A

dependent on volume as well as movement/flow of air

23
Q

Diffusion mediates _____

A

Gas exchange

24
Q

Diffusion Pathway is

A

An area in which gases move from the lungs into the blood; from the blood to the tissue and back

25
Q

Oxygen transport

A
  • O2 is dissolved within the plasma
  • binds to hemoglobin
26
Q

Carbon Dioxide transport

A
  • CO2 is dissolved within plasma
  • Binds to hemoglobin
  • Bicarbonate system
27
Q

External Respiration

A

is the result from increase in pulmonary ventilation
and increase in blood flow to the lungs

Kin (5 decks)

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