Which muscles, when contracted, would increase the volume of air in the thoracic cavity?
  • The pressure of gas in your lungs is inversely proportional to the volume in your lungs.
  • intrapleural pressure
  • diaphragm and external intercostals
  • the diaphragm and rib muscles contract.
Drag each label to the appropriate location on this diagram of the human respiratory system.
  • a. Nasal cavityb. larynxc. trachead. lunge. bronchusf. bronchioleg. diaphragm
  • 1. Carbon dioxide is released from the mitochondria.2. Carbon dioxide diffuses into a capillary.3. Carbon dioxide is carried to the lungs.4. Carbon dioxide diffuses into an alveolus.5. Air exits through nose or mouth
  • 1. Air enters through the nose or mouth2. Air travels down the trachea and then enters the bronchi3. Air travels down smaller and smaller bronchioles4. Air reaches small sacs called alveoli.
  • The pressure of gas in your lungs is inversely proportional to the volume in your lungs.
From which structures do oxygen molecules move from the lungs to the blood?
  • epinephrine
  • a. Nasal cavityb. larynxc. trachead. lunge. bronchusf. bronchioleg. diaphragm
  • lungs will collapse
  • Alveoli
Drag each label to the appropriate location on the flowchart.
  • 1. Carbon dioxide is released from the mitochondria.2. Carbon dioxide diffuses into a capillary.3. Carbon dioxide is carried to the lungs.4. Carbon dioxide diffuses into an alveolus.5. Air exits through nose or mouth
  • 1. Air enters through the nose or mouth2. Air travels down the trachea and then enters the bronchi3. Air travels down smaller and smaller bronchioles4. Air reaches small sacs called alveoli.
  • a. Nasal cavityb. larynxc. trachead. lunge. bronchusf. bronchioleg. diaphragm
  • 1. Oxygen diffuses from the alveoli into surrounding capillaries.2. Oxygen enters a red blood cell.3. Oxygen binds to a molecule of hemoglobin.4. Oxygen is carried through blood vessels to a capillary.5. Oxygen diffuses from the blood to the body's tissues
Part A - Carbon dioxide transportDrag each label to the appropriate location on the flowchart.
  • 1. Carbon dioxide is released from the mitochondria.2. Carbon dioxide diffuses into a capillary.3. Carbon dioxide is carried to the lungs.4. Carbon dioxide diffuses into an alveolus.5. Air exits through nose or mouth
  • 1. Oxygen diffuses from the alveoli into surrounding capillaries.2. Oxygen enters a red blood cell.3. Oxygen binds to a molecule of hemoglobin.4. Oxygen is carried through blood vessels to a capillary.5. Oxygen diffuses from the blood to the body's tissues
  • 1. Breathing moves air in and out of the lungs.2. Oxygen diffuses from alveoli in the lungs into capillaries.3. Oxygen enters red blood cells, where it binds to the protein hemoglobin.4. Oxygen diffuses from the blood to the body's tissues, and carbon dioxide diffuses from the tissues to the blood.5. Carbon dioxide leaves the body when exhale.
  • 1. Air enters through the nose or mouth2. Air travels down the trachea and then enters the bronchi3. Air travels down smaller and smaller bronchioles4. Air reaches small sacs called alveoli.
During inhalation,
  • the diaphragm and rib muscles contract.
  • epinephrine
  • is a protein that can bind four molecules of oxygen.
  • diaphragm and external intercostals
Label the figure that shows "INHALATION" and the figure that shows "EXHALATION" in targets (a) and (b).Then drag the other labels to the appropriate locations on the figures.
  • 1. Air enters through the nose or mouth2. Air travels down the trachea and then enters the bronchi3. Air travels down smaller and smaller bronchioles4. Air reaches small sacs called alveoli.
  • a. Inhalationb. Exhalationc. external intercostal muscles contractd. air enters bodyg. diaphragm contracts (moves down).air leaves bodyf. internal intercostal muscles contracth. diaphragm relaxes (moves up).
  • 1. Carbon dioxide is released from the mitochondria.2. Carbon dioxide diffuses into a capillary.3. Carbon dioxide is carried to the lungs.4. Carbon dioxide diffuses into an alveolus.5. Air exits through nose or mouth
  • 1. Oxygen diffuses from the alveoli into surrounding capillaries.2. Oxygen enters a red blood cell.3. Oxygen binds to a molecule of hemoglobin.4. Oxygen is carried through blood vessels to a capillary.5. Oxygen diffuses from the blood to the body's tissues
During an allergic reaction, which of the following would aid respiration?
  • the diaphragm and rib muscles contract.
  • epinephrine
  • Alveoli
  • lungs will collapse
Which of the following descriptions accurately describes Boyle's law?
  • The pressure of gas in your lungs is inversely proportional to the volume in your lungs.
  • diaphragm and external intercostals
  • In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells.
  • a. Nasal cavityb. larynxc. trachead. lunge. bronchusf. bronchioleg. diaphragm
Hemoglobin
  • In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells.
  • the diaphragm and rib muscles contract.
  • it returns to the heart, and is then pumped to body cells.
  • is a protein that can bind four molecules of oxygen.
Part A - Key events in gas exchangeDrag each label to the appropriate location on the flowchart.
  • 1. Oxygen diffuses from the alveoli into surrounding capillaries.2. Oxygen enters a red blood cell.3. Oxygen binds to a molecule of hemoglobin.4. Oxygen is carried through blood vessels to a capillary.5. Oxygen diffuses from the blood to the body's tissues
  • 1. Breathing moves air in and out of the lungs.2. Oxygen diffuses from alveoli in the lungs into capillaries.3. Oxygen enters red blood cells, where it binds to the protein hemoglobin.4. Oxygen diffuses from the blood to the body's tissues, and carbon dioxide diffuses from the tissues to the blood.5. Carbon dioxide leaves the body when exhale.
  • 1. Air enters through the nose or mouth2. Air travels down the trachea and then enters the bronchi3. Air travels down smaller and smaller bronchioles4. Air reaches small sacs called alveoli.
  • 1. Carbon dioxide is released from the mitochondria.2. Carbon dioxide diffuses into a capillary.3. Carbon dioxide is carried to the lungs.4. Carbon dioxide diffuses into an alveolus.5. Air exits through nose or mouth
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