Homework #7

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The primary response will peak how many days after an exposure?

10 - 17 days

Natural exposure to an infectious agent leads to:

Active immunity

Which of the following is the primary gas exchange site?

Alveolus

Which of the following is an inactive, self responsive cell?

Anergy Cell

The gas law that describes the pressure changes that occur during pulmonary ventilation is

Boyle's Law

Which structure prevents food or water from entering the trachea?

Epiglottis

Which of the following stimulates an immune response ONLY when it is attached to a large carrier molecule?

Hapten

Which of the following is a factor that affects pulmonary ventilation?

Lung compliance, suface tension of alveolar fluid, elastic recoil of the chest wall and lungs, airway resistance, (all of these answers are correct)

Which of the below tissues forms the exchange surfaces of the alveolus?

Simple squamous epithelium

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

Trachea

Which structure is located anterior to the esophagus and carries air to the bronchi?

Trachea

Natural passive immunity is associated with which of the following?

Transfer of IgG from mother to fetus

Which of the following are cells of the alveoli that produce surfactant?

Type II alveolar cells

Which type of adaptive immunity will result from intravenous injection of immunoglobulins?

artificially acquired passive immunity

The inability of the immune system to protect the body from pathogens is a sign of

immunodeficiency disease

Which cells increase the permeability of blood vessels by releasing histamine?

mast cells

Which of the following leads to inflammation, enhancement of phagocytosis and lysis of microbes?

Classical and alternative complement systems

Which of the following is a conducting zone action?

Clean air of debris, conduct air into the lungs, add water to air, warm air, (these are all actions of the conduction zone

Which of the following indicates the direction of diffusion of gases at the alveoli of the lungs?

Oxygen into blood, Carbon dioxide out of blood

Which of the following is a passageway for air, food and water?

Pharynx


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