| Question | Answer |
|---|---|
| THE MOST POWERFUL RESPIRATORY STIMULUS FOR BREATHING IN A HEALTHY PERSON IS | INCREASE IN CARBON DIOXIDE |
| NERVE IMPULSES FROM ____ WILL RESULT IN INSPIRATION | THE VENTRAL RESPIRATORY GROUP |
What is the most powerful respiratory stimulus?
Normally, an increased concentration of carbon dioxide is the strongest stimulus to breathe more deeply and more frequently. Conversely, when the carbon dioxide concentration in the blood is low, the brain decreases the frequency and depth of breaths.
What is the most powerful respiratory stimulant in a healthy person?
Which of the following stimuli is the most powerful respiratory stimulant to increase respiration? Excessive carbon dioxide is a powerful stimulant to respiratory rate, as the brain assumes that when carbon dioxide levels are high, the oxygen levels must be correspondingly low.
What is the most powerful respiratory stimulus for breathing in a healthy person quizlet?
The most powerful respiratory stimulus for breathing in a healthy person is: loss of oxygen in tissues.
What are the most powerful stimuli for breathing quizlet?
What are the most powerful stimuli for breathing? Carbon dioxide and oxygen compete for binding sites with the hemoglobin. Oxygen dissociates faster from hemoglobin during exercise. The respiratory membrane is the simple squamous epithelium of the alveoli.
What are the respiratory stimulants?
Respiratory stimulants, such as progesterone, theophylline, protriptyline, and buspirone, can enhance the central drive to breathe and normalize the arterial tension of CO2 (Paco2) in the obesity-hypoventilation syndrome.
Is carbon dioxide a respiratory stimulant?
as the normal respiratory stimulant : carbon dioxide. ordinary air containing only 21 per cent. act as a respiratory depressant. oxygen and air are essentially diluents.
Which of the following would not be a stimulus for breathing in a healthy person?
So the correct answer is 'Rising CO2 levels'.
Is intrapulmonary pressure the same as alveolar pressure?
The force exerted by gases within the alveoli is called intra-alveolar (intrapulmonary) pressure, whereas the force exerted by gases in the pleural cavity is called intrapleural pressure. Typically, intrapleural pressure is lower, or negative to, intra-alveolar pressure.
What is intrapulmonary pressure during inspiration?
During inspiration, the volume of the thoracic cavity increases, causing intrapulmonary pressure to fall below atmospheric pressure. This is also known as a negative pressure. Since air moves from areas of high to low air pressure, air flows into the lungs.
What is the main force causing the exhalation of air?
During expiration, the diaphragm and intercostals relax, causing the thorax and lungs to recoil. The air pressure within the lungs increases to above the pressure of the atmosphere, causing air to be forced out of the lungs.
What is the form in which 97% of the oxygen is transported?
About 97% of O2 transported from lungs to tissues is carried in chemical combination with haemoglobin (Hb) in RBC. Remaining 3% is transported in dissolved state in water of plasma and cells.
Which of the following processes are involved in respiration quizlet?
Terms in this set (5)1) Pulmonary Ventilation. Movement of air in and out of the lungs passage (Thorax and Diaphragm).2) External Respiration. Exchange of gases between air and blood at pulmonary capillaries (Alveoli).3) Transport of gases through blood vessels. ... 4) Internal Respiration. ... 5) Cellular Respiration.