EVOLVE CH 34

Which of the following is NOT a function of the pleurae and pleural fluid? A. decreasing friction within the pleural space B. compartmentalizing the thorax and preventing infections from spreading to the heart C. assisting with the development of an intra-pleural pressure that leads to inspiration D. removing dust and inhaled debris from the airways

The lungs do not normally collapse because a. they are attached to the thoracic wall with parietal ligaments. b. they are attached to the thoracic wall with the visceral ligaments. c. the pressure in the intrapleural cavity is lower than the pressure in the intrapulmonary space (lungs). d. the pressure in the intrapleural cavity is greater than the pressure in the intrapulmonary space (lungs).

Ventilation in the capillaries is matched to perfusion. This means that  a. blood pressure from capillaries must match the pressure from the arterioles b. gas pressure in the alveolar must match the pressure in the bronchioles c. ventilation is never profuse enough d. ventilation in the alveolar must match the blood flow passing over those alveiolar

The pleura that surrounds the lungs consists of two layers, the ________.a. visceral and parietal pleurae.b. mediastinum and parietal pleurae.c. visceral and mediastinum pleurae.d. none of the above

The "pump" or "pressure-head" for the pulmonary circulation is the: A. right atrium B. right ventricle C. left atrium D. left ventricle

Which of the following statements are true of the alveoli and pulmonary capillaries? (Read carefully and select all of the correct statements.) A. Blood coming into the pulmonary capillaries is low in O2 and high in CO2. B. The alveolar walls are one cell in thickness.C. The total alveoli provide a large surface area for gas exchange.D. The pulmonary capillaries are made of simple squamous epithelium. E. Blood leaving the pulmonary capillaries will return to the left atrium of the heart.

17. A 43-year-old male patient makes an appointment with a primary care physician because of recent exertional chest pain. The physical and radiographic findings suggest advanced primary pulmonary hypertension. Which of the positions in the diagram above is the best site for hearing the closure of the pulmonary valve? 2 3 18. Which anatomical landmark separates upper GI bleeding from lower Gl bleeding? a. Lower esophageal sphincter b. Ligament of Treitz c. Pyloric sphincter d. lleocecal valve e. Second part of duodenum

Which of the following statements about the lungs of an upright person is true? O A. The ventilation/perfusion ratio is higher at the top of the lung than at the bottom. O B. Blood flow to the top of the lung per gm of tissue is much greater than at the bottom. O C. Ventilation at the top of the lung per gm of tissue is greater than at the bottom O D. The ventilation/perfusion ratio is lower at the top of the lung than at the bottom. OE. None of the above

The membrane that covers the lungs is called a. parietal pleura. b. visceral pleura. c. parietal pericardial. d. visceral pericardial.

Sinus Headaches are caused by: A. Drainage of the sinuses B. Inflammation of the sinuses C. Both D. None

Very young infants who suffer from sleep apnea may be more at risk for SIDS, or sudden infant death syndrome. Why might these infants have difficulty breathing? a. Many of these infants are obese and therefore their airways are obstructed. b. The brain stem is not yet fully mature. c. The tissue lining in the nasal passageway may be obstructing their airflow. d. No medical explanation has been determined.

1. Which structure covers during the larynx during swallowing?A. EpiglottisB. GlottisC. ConchaeD. Hyoid 2. The airway between the larynx and the primary bronchi is the A. BronchioleB. PharynxC. LarynxD. Trachea 3. When the external intercostal muscles and diaphragm contract, A. The volume of the lungs decreasesB. The volume of the thorax increasesC. The volume of the thorax decreasesD. The lungs collapse

Which of the following best describes the gas exchange that occurs in the lungs?    A. carbon dioxide diffuses into the capillaries from the alveoli  B. oxygen diffuses from the capillaries into the alveoli  C. carbon dioxide diffuses from the capillaries into the alveoli  D. oxygen diffuse into the alveoli from the capillaries

1. a. If transpulmonary pressure equals zero, what will happen to the lungs? b. This is known as a/an 2. a. When the bronchiole constricts, what will happen to resistance? b. To air flow? (use arrows)

1. a. If transpulmonary pressure equals zero, what will happen to the lungs? b. This is known as a/an

The functions of C-shaped tracheal cartilages are to prevent collapse or over-expansion of the airway and to allow expansion of the _____ a. larynx b. esophagus c. vocal cords d. stomach

1.Intrapulmonary pressure is:   a. the pressure within the pleural cavity   b. the pressure within the alveoli of the lungs   c. also known as intra-alveolar pressure   d. both a and c   e. both b and c

The lung segment called the superior lingula is found in theA. left lung, lower division of the upper lobe.B. right lung, lower lobe.C. left lung, upper division of the upper lobe.D. right lung, upper lobe

The parietal pleuraa. covers the surface of the lung.b. covers the inner surface of the thoracic cavity.c. is the connective tissue partition that divides the thoracic cavity intoright and left pleural cavities.d. covers the inner surface of the alveoli.e. is the membrane across which gas exchange occurs.

The structures in the passageways of the lung which become paralyzed in the early stages of chronic bronchitis so they cannot sweep out contaminants are the:  A. Cilia B. Helper T's C. capillaries D. alveoli

Which of the following are mechanisms to prevent food from entering the larynx? (Check all that apply.) Select one or more: a. Tipping of epiglottis over glottis b. Movement of the tongue over the inlet to the larynx c. Closure of the glottis d. Contraction of the thyroid cartilage, pinching closed the larynx