Respiratory System Flashcards

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Questions and Answers

Air enters through the mouth and nose and is warmed. It moves to the ____, the chamber behind the mouth. This tube leads into two other tubes.

  • Epiglottis
  • Pharynx (correct)
  • Bronchi
  • Larynx

After air moves through the pharynx it continues downward. The _________ directs the air into two separate branches or tubes.

  • Bronchi
  • Trachea (correct)
  • Larynx
  • Alveoli

There are two branches of the trachea that direct air to the lungs. These tubes are called ____. They connect each of the two lungs to the windpipe.

  • Trachea
  • Bronchi (correct)
  • Pharynx
  • Alveoli

The lungs are filled with tiny air sacs for the exchange of gases. These very tiny sacs are called ____ and are surrounded by blood vessels.

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

The tiny blood vessels surrounding the alveoli are essential for transferring these two gases. These blood vessels, called ____, are the smallest of all blood vessels.

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

Which of the following structures is not part of the upper respiratory tract?

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

Which part of the respiratory system does not function as an air distributor?

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

What is the superior opening of the larynx?

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

Which of the following is not a function of the nose?

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

The fluid coating the alveoli that reduces surface tension, preventing alveoli from collapsing is called

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

Which of the following is not a true statement?

<p>Raising the ribs decreases the depth and width of the thorax. (B)</p> Signup and view all the answers

When the diaphragm contracts, the volume of the thorax increases and thoracic pressure

<p>Decreases, rushing air into the lungs (A)</p> Signup and view all the answers

Increasing the carbon dioxide in the blood results in

<p>Both A and B (D)</p> Signup and view all the answers

Approximately 70% of carbon dioxide is transported as ________, whereas the 10% is transported dissolved in ___________.

<p>Bicarbonate ion, plasma (C)</p> Signup and view all the answers

Most of the oxygen transported by the blood is

<p>Bound to hemoglobin (C)</p> Signup and view all the answers

Which of the following does not occur during inspiration?

<p>Elevation of the diaphragm (B)</p> Signup and view all the answers

The basic rhythm of the respiratory cycle is generated by the

<p>All of the above (D)</p> Signup and view all the answers

Areas where gas exchange cannot take place are

<p>All of the above (D)</p> Signup and view all the answers

Quiet inspiration occurs when the diaphragm and _________ intercostals _______

<p>External, contract (D)</p> Signup and view all the answers

Under normal conditions, air in the atmosphere exerts a pressure of

<p>760mmHg (C)</p> Signup and view all the answers

The exchange of gases in the alveoli occurs via

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

The epiglottis prevents food from entering the airway when swallowing.

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

The pharynx is a tubelike structure that opens only into the mouth and larynx.

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

The pharynx is known as the voice box.

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

The rings of cartilage surrounding the trachea prevent it from collapsing and shutting off the vital airway.

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

The trachea divides into secondary bronchi.

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

The left lung is divided into three lobes by the oblique and horizontal fissures.

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

It is not possible to exhale all of the air from your lungs.

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

Air in the pleural space of the thoracic cavity is called a pneumothorax.

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

The membrane directly lining the lungs is the parietal pleura.

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

During normal, quiet respiration, the amount of air exchanged between the lungs and atmosphere is called:

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

The largest amount of air that can enter and leave the lungs during respiration is:

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

The volume remaining in the respiratory tract after maximum expiration is:

<p>Residual volume (A)</p> Signup and view all the answers

The amount of air that can be forcibly exhaled after expiring the tidal volume is:

<p>Expiratory reserve volume (B)</p> Signup and view all the answers

Vital capacity plus residual volume is:

<p>Total lung capacity (A)</p> Signup and view all the answers

Amount of air that can be inhaled during forced breathing in addition to tidal volume is:

<p>Inspiratory reserve volume (A)</p> Signup and view all the answers

Accelerated respiration is called:

<p>Tachypnea (G)</p> Signup and view all the answers

Dyspnea that occurs when a person is lying down is called:

<p>Orthopnea (I)</p> Signup and view all the answers

Reduced pulmonary ventilation is called:

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

Increased pulmonary ventilation in excess of metabolic demand is called:

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

Normal, relaxed, quiet breathing is called:

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

Labored, gasping breathing; shortness of breath is called:

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

Temporary cessation of breathing is called:

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

Permanent cessation of breathing is called:

<p>Respiratory arrest (H)</p> Signup and view all the answers

Increased rate and depth of breathing in response to exercise, pain, or other conditions is called:

<p>Hyperpnea (J)</p> Signup and view all the answers

Deficiency of oxygen is called:

<p>Hypoxia (J)</p> Signup and view all the answers

Malignancy of pulmonary tissue is called:

<p>Lung cancer (K)</p> Signup and view all the answers

Very serious, chronic, and highly infectious disease that prevents lung compliance is called:

<p>Tuberculosis (E)</p> Signup and view all the answers

Displacement of nasal septum is called:

<p>Deviated septum (J)</p> Signup and view all the answers

Nosebleed is called:

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

Inflammation of mucosa in the nasal cavity (common cold) is called:

<p>Rhinitis (G)</p> Signup and view all the answers

Inflammation of your pharynx (sore throat) is called:

<p>Pharyngitis (J)</p> Signup and view all the answers

Inflammation of the vocal cords (temporarily lose voice) is called:

<p>Laryngitis (L)</p> Signup and view all the answers

Harsh, vibrating cough affecting infants is called:

<p>Croup (N)</p> Signup and view all the answers

Inflammation due to common infection of the bronchial tree is called:

<p>Acute bronchitis (J)</p> Signup and view all the answers

Upper respiratory infection due to bacteria is called:

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

Long-term obstruction of airflow and a substantial reduction in pulmonary ventilation is called:

<p>COPD (N)</p> Signup and view all the answers

Bronchioconstriction due to allergens is called:

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

Accumulation of mucous in the respiratory tract due to genetic defect is called:

<p>Cystic fibrosis (J)</p> Signup and view all the answers

Lower respiratory infection of the alveoli that causes fluid build-up in the lungs due to bacteria and viruses is called:

<p>Pneumonia (H)</p> Signup and view all the answers

Alveolar walls break down and the surface area of the lungs is reduced is called:

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

Superficial lung tissue becomes inflamed, resulting in a sharp pain in the chest that is worse with breathing, cough, chest tenderness, and shortness of breath is called:

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

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Study Notes

Respiratory System Overview

  • Air enters through the mouth and nose, warmed as it moves to the pharynx.
  • Pharynx leads to the larynx, which directs air to the trachea and bronchi.
  • Bronchi are the two branches of the trachea that connect to each lung, facilitating air entry.

Gas Exchange Mechanism

  • The lungs contain alveoli, tiny air sacs where oxygen and carbon dioxide exchange occurs.
  • Surrounding the alveoli are capillaries, the smallest blood vessels that enable gas exchange by transporting red blood cells.

Respiratory Functions and Structures

  • The nose moistens and warms air, acts as a resonating chamber, and detects odors but does not ingest food.
  • The epiglottis prevents food from entering the airway during swallowing.
  • Trachea is not part of the upper respiratory tract; it divides into two primary bronchi.

Breathing Mechanics

  • Diaphragm contraction increases thoracic volume and decreases pressure, drawing air into the lungs.
  • Inspiration involves diaphragm and external intercostals contracting for effective airflow.
  • Quiet inspiration refers to normal breathing without exertion.

Lung Capacity and Volumes

  • Tidal volume is the amount of air exchanged during normal respiration.
  • Vital capacity is the maximum air volume that can be expelled after full inhalation.
  • Residual volume is the air remaining in the lungs after maximum expiration.
  • Total lung capacity includes vital capacity and residual volume.

Respiratory Patterns and Conditions

  • Hyperpnea refers to increased breathing due to exercise or pain, while hypoventilation indicates reduced ventilation.
  • Eupnea describes normal, relaxed breathing, whereas dyspnea denotes labored breathing.
  • Apnea is a temporary cessation of breathing, while tachypnea is a rapid breathing rate.

Respiratory Disorders

  • Tuberculosis is a serious infectious disease that impacts lung compliance.
  • COPD (Chronic Obstructive Pulmonary Disease) involves airflow obstruction and reduced ventilation.
  • Asthma causes bronchoconstriction due to allergens, while cystic fibrosis leads to mucus accumulation in the respiratory tract.
  • Pneumonia is a lower respiratory infection characterized by fluid buildup in the alveoli.

Inflammation and Infection

  • Rhinitis is inflammation of the nasal mucosa, while sinusitis involves inflammation of the sinuses.
  • Pharyngitis refers to the inflammation of the pharynx, often resulting in a sore throat.
  • Laryngitis is inflammation of the vocal cords, causing temporary voice loss.

Respiratory Anatomy Facts

  • Pleura membranes line the lungs with parietal and visceral layers.
  • The trachea is reinforced with cartilage rings to prevent collapse.
  • Gas exchange in alveoli occurs via simple diffusion, maintaining efficient respiratory function.

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