01 Mills
... The diaphragm is a bi-domed structure attached by the crura to the lumbar vertebrae. When this area contracts, it moves downward, producing a fall in intrathoracic pressure. The descent increases intra-abdominal pressure which is transmitted laterally to the lower rib cage via the zone of apposition ...
... The diaphragm is a bi-domed structure attached by the crura to the lumbar vertebrae. When this area contracts, it moves downward, producing a fall in intrathoracic pressure. The descent increases intra-abdominal pressure which is transmitted laterally to the lower rib cage via the zone of apposition ...
A Global Model for the Cardiovascular and Respiratory System
... this type see, e.g., Noordergraaf [50] or Swan [66]. A comprehensive discussion of the control mechanisms in the human cardiovascular system is given in Guyton [17] or Rowell [60]. Models dealing with the regulation of breathing date back to the beginning of this century (Haldane and Priestley [18]) ...
... this type see, e.g., Noordergraaf [50] or Swan [66]. A comprehensive discussion of the control mechanisms in the human cardiovascular system is given in Guyton [17] or Rowell [60]. Models dealing with the regulation of breathing date back to the beginning of this century (Haldane and Priestley [18]) ...
CHAPTER 1 Anatomy and physiology of the human respiratory system
... As a front of inspired air moves distally down the airways, the pattern of oxygen transport and mixing within this front changes from a combination of turbulent and laminar convection in the conducting airways to predominantly diffusive mixing as it moves into the acini and finally into the alveoli ...
... As a front of inspired air moves distally down the airways, the pattern of oxygen transport and mixing within this front changes from a combination of turbulent and laminar convection in the conducting airways to predominantly diffusive mixing as it moves into the acini and finally into the alveoli ...
Respiratory Physio Detailed File
... • Spirometer: instrument used to measure respiratory volumes and capacities • Spirometry can distinguish between – Obstructive pulmonary disease—increased airway resistance (e.g., bronchitis) – Restrictive disorders—reduction in total lung capacity due to structural or functional lung changes (e.g., ...
... • Spirometer: instrument used to measure respiratory volumes and capacities • Spirometry can distinguish between – Obstructive pulmonary disease—increased airway resistance (e.g., bronchitis) – Restrictive disorders—reduction in total lung capacity due to structural or functional lung changes (e.g., ...
Respiratory Physiology
... the autonomic nervous system (sympathetic nerve, relaxation, resistance↓; parasympathetic nerve, contraction, resistance↑). Irritants such as cigarette smoke cause an increase in resistance. An increase in lung volume reduces resistance because the bronchi are pulled open. Patients with elevated air ...
... the autonomic nervous system (sympathetic nerve, relaxation, resistance↓; parasympathetic nerve, contraction, resistance↑). Irritants such as cigarette smoke cause an increase in resistance. An increase in lung volume reduces resistance because the bronchi are pulled open. Patients with elevated air ...
O 2
... The concentration of dissolved gas molecules depends not only on the partial pressure 分壓 but also on the solubility 溶解度 of the gas in that particular liquid Henry’s law 亨利定律 Henry’s law states that when the temperature 溫度 is constant, the concentration 濃度 of a gas in a liquid is proportional t ...
... The concentration of dissolved gas molecules depends not only on the partial pressure 分壓 but also on the solubility 溶解度 of the gas in that particular liquid Henry’s law 亨利定律 Henry’s law states that when the temperature 溫度 is constant, the concentration 濃度 of a gas in a liquid is proportional t ...
lecture16-pulm
... How does blood flow affect the balance of gases? How does ventilation affect the balance of gases? When is the exchange blood flow limited? When is the exchange ventilation limited? ...
... How does blood flow affect the balance of gases? How does ventilation affect the balance of gases? When is the exchange blood flow limited? When is the exchange ventilation limited? ...
1 FORM W KEY deducted if you fail to do this!!!!!!
... c) Occurs because water osmotically follows Na+ from the tubule to the interstitial fluid d) Both a and c are true e) Both b and c are true 19. Anakin Skywalker, from the planet Tatooine, has a PO2 of 200 mm Hg in his alveoli and a PO2 of 80 mm Hg in his tissues. Assuming that Anakin’s respiratory p ...
... c) Occurs because water osmotically follows Na+ from the tubule to the interstitial fluid d) Both a and c are true e) Both b and c are true 19. Anakin Skywalker, from the planet Tatooine, has a PO2 of 200 mm Hg in his alveoli and a PO2 of 80 mm Hg in his tissues. Assuming that Anakin’s respiratory p ...
19 Comp Review 3b
... Pressure and volume are inversely related (if other variables are kept constant.) ...
... Pressure and volume are inversely related (if other variables are kept constant.) ...
Pulmonary Ventilation: Inspiration and Expiration
... Chronic Obstructive Pulmonary Disease The term chronic obstructive pulmonary disease refers to (1) emphysema, (2) chronic bronchitis, or (3) a combination of the two. These diseases, which cause severe difficulties not only in ventilation but in oxygenation of the blood, are ...
... Chronic Obstructive Pulmonary Disease The term chronic obstructive pulmonary disease refers to (1) emphysema, (2) chronic bronchitis, or (3) a combination of the two. These diseases, which cause severe difficulties not only in ventilation but in oxygenation of the blood, are ...
Respiratory Basics
... This chapter provides you with the basics of respiratory anatomy and physiology. It explores airway anatomy, the mechanics of ventilation, alveolar gas exchange and gas transport. Respiration is an umbrella term for the total process of delivering oxygen to the cells and the removal of carbon dioxid ...
... This chapter provides you with the basics of respiratory anatomy and physiology. It explores airway anatomy, the mechanics of ventilation, alveolar gas exchange and gas transport. Respiration is an umbrella term for the total process of delivering oxygen to the cells and the removal of carbon dioxid ...
11 Respiratory physiology
... • Air has weight; atmospheric pressure is 760 mmHg at sea level (much less weight and pressure at high altitudes). • Since air will flow from higher pressure to lower pressure areas, to get the air to flow into our lungs, we need to have a lower pressure in our lungs. • We can decrease the pressure ...
... • Air has weight; atmospheric pressure is 760 mmHg at sea level (much less weight and pressure at high altitudes). • Since air will flow from higher pressure to lower pressure areas, to get the air to flow into our lungs, we need to have a lower pressure in our lungs. • We can decrease the pressure ...
Respiratory System (Power Point Document)
... COUGH REFLEX :-Cough is protective reflex by means of which respiratory Passage are kept free form foreign matter. WARMING,HUMIDIFYING AND FILTERING :This continues as the nose, Although air is normally Saturated and at body temperature when it reaches the trachea. ...
... COUGH REFLEX :-Cough is protective reflex by means of which respiratory Passage are kept free form foreign matter. WARMING,HUMIDIFYING AND FILTERING :This continues as the nose, Although air is normally Saturated and at body temperature when it reaches the trachea. ...
18 Renal Acid-Base Balance
... • If blood carbon dioxide levels are elevated (too much blood acid) and urine bicarbonate levels are elevated (H+ is being secreted to make bicarbonate). That means that the original problem of elevated carbon dioxide (pCO2) is being compensated for by the kidneys, which are secreting more H+ to mak ...
... • If blood carbon dioxide levels are elevated (too much blood acid) and urine bicarbonate levels are elevated (H+ is being secreted to make bicarbonate). That means that the original problem of elevated carbon dioxide (pCO2) is being compensated for by the kidneys, which are secreting more H+ to mak ...
Respiratory 4 Control of Respiration Control of Respiration
... • Basic respiratory rhythm is established by a group of neurons in the medulla oblongata region of the brain – Medullary respiratory centre – These neurons drive the activity of the motor neurons that control muscle contraction – Increase motor neuron activity = increase ventilation ...
... • Basic respiratory rhythm is established by a group of neurons in the medulla oblongata region of the brain – Medullary respiratory centre – These neurons drive the activity of the motor neurons that control muscle contraction – Increase motor neuron activity = increase ventilation ...
2. Physiology_Respiratory_System
... fashion at a frequency of 1000-1500 cycles per minute. ♦ The ciliary mechanism is capable of moving particles away from the lungs at a rate of at least 16mm/min. Particles less than 2µm in diameter generally reach the alveoli, where they are ingested by the macrophages ♦ When ciliary motility is def ...
... fashion at a frequency of 1000-1500 cycles per minute. ♦ The ciliary mechanism is capable of moving particles away from the lungs at a rate of at least 16mm/min. Particles less than 2µm in diameter generally reach the alveoli, where they are ingested by the macrophages ♦ When ciliary motility is def ...
No Slide Title
... • The activity of the upper airway muscles (nose, pharynx and larynx) also decreases during sleep. • The negative pressure during inspiration is normally counterbalanced by activity of the upper airway muscles that function to keep the upper airway open. • Inspiration tends to collapse the upper air ...
... • The activity of the upper airway muscles (nose, pharynx and larynx) also decreases during sleep. • The negative pressure during inspiration is normally counterbalanced by activity of the upper airway muscles that function to keep the upper airway open. • Inspiration tends to collapse the upper air ...
Human Physiology Study Questions-3
... 11. Where are baroreceptors located? Why is this a good vantage point? What region of the central nervous system do the sensory neurons (that detect the stretch associated with increasing pressure) innervate? Why does this make sense? Generate a scenario where the baroreceptors play an important ro ...
... 11. Where are baroreceptors located? Why is this a good vantage point? What region of the central nervous system do the sensory neurons (that detect the stretch associated with increasing pressure) innervate? Why does this make sense? Generate a scenario where the baroreceptors play an important ro ...
Handouts - Wayne County Criminal Advocacy Program
... details whatsoever from events that occurred while they were intoxicated, despite all efforts by the drinkers or others to cue recall. En bloc memory impairments tend to have a distinct onset. It is usually less clear when these blackouts end because people typically fall asleep before they are over ...
... details whatsoever from events that occurred while they were intoxicated, despite all efforts by the drinkers or others to cue recall. En bloc memory impairments tend to have a distinct onset. It is usually less clear when these blackouts end because people typically fall asleep before they are over ...
Mechanical Ventilation
... surface tension of water. The internal surface of the alveolus is covered with a thin coat of fluid. The water in this fluid has a high surface tension, and provides a force that could collapse the alveolus. The presence of surfactant in this fluid breaks up the surface tension of water, making it l ...
... surface tension of water. The internal surface of the alveolus is covered with a thin coat of fluid. The water in this fluid has a high surface tension, and provides a force that could collapse the alveolus. The presence of surfactant in this fluid breaks up the surface tension of water, making it l ...
B. True or False/Edit
... ___ 29. Which of the following statements best describes the vital capacity of the lung? a. the volume of gas inspired or expired in an unforced respiratory cycle b. the volume of gas remaining in the lungs after a maximum expiration c. the total amount of gas in the lungs at the end of a maximum in ...
... ___ 29. Which of the following statements best describes the vital capacity of the lung? a. the volume of gas inspired or expired in an unforced respiratory cycle b. the volume of gas remaining in the lungs after a maximum expiration c. the total amount of gas in the lungs at the end of a maximum in ...
Laboratory Exercise 10: Physiology of Ventilation (Breathing)
... Cyclical changes in intrathoracic pressure during breathing affect gas exchange and the cardiovascular system. Thoracic cavity movements during breathing create a suction effect which helps move venous blood through the inferior vena cava to the heart. The thin walled veins alternately constrict on ...
... Cyclical changes in intrathoracic pressure during breathing affect gas exchange and the cardiovascular system. Thoracic cavity movements during breathing create a suction effect which helps move venous blood through the inferior vena cava to the heart. The thin walled veins alternately constrict on ...
Saladin 5e Extended Outline
... C. The principal organs of the respiratory system are the nose, pharynx, larynx, trachea, bronchi, and lungs. (p. 864) (Fig. 22.1) 1. The air flows along a dead-end pathway in the lungs, stopping in the alveoli and then flowing back out along the same path. 2. The conducting division consists of pas ...
... C. The principal organs of the respiratory system are the nose, pharynx, larynx, trachea, bronchi, and lungs. (p. 864) (Fig. 22.1) 1. The air flows along a dead-end pathway in the lungs, stopping in the alveoli and then flowing back out along the same path. 2. The conducting division consists of pas ...
Chapter 16 - Dr. Dorena Rode
... ___ 44. At higher altitudes the partial pressures (P) of the individual gases decrease which result in a corresponding decrease in the total atmospheric pressure. ___ 45. Although water vapor is considered a gas, it does not exert a partial pressure and therefore does not contribute to the total atm ...
... ___ 44. At higher altitudes the partial pressures (P) of the individual gases decrease which result in a corresponding decrease in the total atmospheric pressure. ___ 45. Although water vapor is considered a gas, it does not exert a partial pressure and therefore does not contribute to the total atm ...