Anatomy of the Blood and Respiratory System
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Questions and Answers

What determines whether a person is RH+ or RH-?

  • Presence of RH antigen (correct)
  • Blood type A or B
  • Amount of oxygen in blood
  • Number of white blood cells

What is the primary function of the pleura in the respiratory system?

  • To facilitate gas exchange
  • To produce oxygen
  • To provide structure to the trachea
  • To protect the lungs (correct)

Which part of the brain controls the rate of breathing?

  • Cortex
  • Medulla (correct)
  • Cerebellum
  • Hypothalamus

What condition is characterized by the abnormal enlargement of the lungs due to the destruction of elastic fibers?

<p>Emphysema (D)</p> Signup and view all the answers

What happens to the pH of blood when CO2 levels increase?

<p>It becomes more acidic (C)</p> Signup and view all the answers

Which chemical indicator changes from transparent to milky in the presence of carbon dioxide?

<p>Lime water (A)</p> Signup and view all the answers

What is the primary role of hemoglobin in the respiratory system?

<p>To transport oxygen (B)</p> Signup and view all the answers

What occurs during exhalation in terms of diaphragm movement?

<p>Diaphragm relaxes (A)</p> Signup and view all the answers

What is the consequence of not having enough CO2 expelled from the body?

<p>Blood becomes more acidic (A)</p> Signup and view all the answers

Which of the following structures is NOT part of the respiratory system?

<p>Esophagus (D)</p> Signup and view all the answers

What happens to the volume of the lungs during inhalation?

<p>It increases as the diaphragm contracts (B)</p> Signup and view all the answers

What substance is primarily responsible for transporting oxygen in the human body?

<p>Haemoglobin (B)</p> Signup and view all the answers

Which of the following aids in preventing changes in blood pH?

<p>Buffer solutions (B)</p> Signup and view all the answers

During expiration, which of the following correctly describes diaphragm movement?

<p>Diaphragm relaxes and rib muscles also relax (D)</p> Signup and view all the answers

What is the condition resulting from the destruction of elastic fibers in the lungs?

<p>Emphysema (B)</p> Signup and view all the answers

Which structure is primarily involved in the gas exchange process within the lungs?

<p>Alveoli (B)</p> Signup and view all the answers

How does an increase in blood carbon dioxide levels affect the respiratory rate?

<p>It increases the respiratory rate to remove CO2 (B)</p> Signup and view all the answers

Which part of the respiratory system is responsible for producing sound?

<p>Larynx (B)</p> Signup and view all the answers

What is a characteristic of a good chemical indicator for carbon dioxide?

<p>It exhibits a visible color change only in the presence of CO2 (C)</p> Signup and view all the answers

What is the primary function of the respiratory system?

<p>Exchange of gases (B)</p> Signup and view all the answers

Flashcards

Rh factor

A protein found on the surface of red blood cells. People are either Rh+ (have the protein) or Rh- (don't).

Rh+ blood type

Blood type containing the Rh antigen (protein).

Rh- blood type

Blood type lacking the Rh antigen.

Respiratory system

The body system responsible for gas exchange (taking in oxygen and releasing carbon dioxide).

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Nasal cavity

Part of the respiratory system where air enters the body.

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Pharynx

Part of the throat that connects the nasal cavity and mouth to the esophagus and larynx.

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Larynx

Voice box; part of the respiratory system.

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Trachea

Windpipe; a tube that carries air to the bronchi.

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Bronchi

Two branches of the trachea that lead to the lungs.

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Bronchioles

Smaller branches of the bronchi that lead to the alveoli.

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Alveoli

Tiny air sacs in the lungs where gas exchange occurs.

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Pleura

Thin protective membranes surrounding the lungs.

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Breathing control

The medulla in the brain regulates breathing rate based on CO2 levels in blood.

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Hemoglobin

Protein in red blood cells that carries oxygen.

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Emphysema

Lung disease causing expansion and damage to lung tissue, often caused by smoking.

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Chemical indicator

A chemical that signals the presence of another substance by changing color.

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Limewater test

Limewater turns cloudy in the presence of carbon dioxide (CO2).

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Function of respiratory system

Gas exchange, maintaining blood pH, and energy production (ATP).

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Buffer solution

A solution that resists changes in pH.

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Inspiration (Inhalation)

The process of drawing air into the lungs.

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Expiration (Exhalation)

The process of pushing air out of the lungs.

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Rh factor

Protein on blood cells; determines Rh+ or Rh- blood type

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Rh+ blood

Blood containing the Rh antigen (protein)

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Rh- blood

Blood lacking the Rh antigen (protein)

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Respiratory System

Body system for gas exchange (oxygen & carbon dioxide)

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Nasal Cavity

Part of respiratory system where air enters

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Pharynx

Throat region connecting nasal/mouth to esophagus/larynx

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Larynx

Voice box; part of the respiratory system

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Trachea

Windpipe; air tube to bronchi

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Bronchi

Two branches of trachea leading to lungs

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Bronchioles

Smaller branches of bronchi leading to alveoli

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Alveoli

Tiny air sacs in lungs where gas exchange occurs

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Pleura

Thin protective membranes around the lungs

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Breathing Control

Medulla in brain controls breathing rate based on CO2

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Hemoglobin

Protein in red blood cells that carries oxygen

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Emphysema

Lung disease; abnormal lung expansion from damage

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Chemical Indicator

Chemical that changes color with presence of substance

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Limewater Test

Limewater turns cloudy in presence of carbon dioxide

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Respiratory System Functions

Gas exchange, blood pH control, energy production

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Buffer Solution

Substance that resists changes in pH

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Inspiration

Breathing in; air enters lungs

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Expiration

Breathing out; air leaves lungs

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Study Notes

Blood and Rh Factor

  • Rh factor is found in the blood of Rhesus monkeys
  • Most people are Rh+ and possess the Rh antigen
  • Some people are Rh- and do not possess the Rh antigen
  • If a father is Rh+ and a mother is Rh-, a fetus may be Rh+

Respiratory System Anatomy

  • Nasal Cavity: Part of the respiratory system
  • Pharynx: Part of the respiratory system
  • Larynx: (Voice box): Part of the respiratory system
  • Trachea: Part of the respiratory system
  • Bronchi: Two branches from the trachea
  • Bronchioles: Smaller branches from the bronchi
  • Alveoli: Air sacs in the lungs, facilitate gas exchange
  • Pleura: Protective membranes around the lungs
    • Thin walls allow for easy gas diffusion
    • Moist surfaces help dissolve gases
    • Capillaries facilitate gas exchange
  • Tracheal Cartilage: Rings of cartilage in the trachea to keep it open

Control of Breathing

  • Breathing is regulated by the medulla (a part of the brain)
  • The rate of breathing is controlled by the amount of carbon dioxide (CO2) in the blood.
  • Increased CO2 lowers blood pH (making it more acidic)
  • The respiratory system increases breathing rate to remove CO2 and prevent blood acidity.
  • Haemoglobin carries oxygen in the blood, combining loosely with it to form oxyhemoglobin

Respiratory System Diseases and Chemicals

  • Emphysema: Lung disease, enlarged lungs due to destroyed elastic tissue, often caused by smoking.
  • Chemical Indicator: A chemical that changes color in the presence of specific substances.
    • Limewater: Turns cloudy in the presence of carbon dioxide (CO2)
    • Methylene blue: Turns yellow in the presence of CO2 and acids, thus not a good indicator of CO2 alone

Respiratory System Functions

  • Gas Exchange: Primary function
  • Blood pH Regulation: Maintaining the correct pH
  • ATP Production: Essential for energy

Respiration Mechanism

  • Buffer Solutions: Substances that resist changes in pH, keeping it constant.

  • Inhalation (Inspiration):

    • Diaphragm: Contracts, enlarging chest cavity
    • Rib Muscles: Contract, pulling ribs upward and outward, increasing chest cavity
    • Lung Volume: Increases, pressure inside the lungs decreases
    • Air Movement: Air flows into the lungs from the atmosphere
  • Exhalation (Expiration):

    • Diaphragm: Relaxes, reducing chest cavity size
    • Rib Muscles: Relax, moving ribs downward and inward, decreasing chest cavity size
    • Lung Volume: Decreases, pressure in lungs increases
    • Air Movement: Air flows out of lungs to atmosphere

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Description

Explore the intricacies of blood types, particularly the Rh factor, and understand the anatomy of the respiratory system. Learn about essential structures like the larynx, trachea, and alveoli, along with their functions in gas exchange. This quiz will help you link blood physiology with respiratory anatomy and regulation.

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