Any number of things can inhibit or affect the comfort of breathing. It is a dose-response, negative-feedback relationship in which the greater the stimulus, the greater the response. Brain lesions: Lesions of the brain (such as hemorrhage or tumors) or brainstem can cause a change in both the depth and rate of respirations, most commonly manifested as Cheyne-Stokes respirations. hypercapnia increases the respriatory rate). In most cases, your body controls your breathing automatically, without you having to think about it. Most notably, PaCO2 influences the minute volume (i.e. Two of these are strong emotions, as well as pain acting through the limbic system, which activate sympathetic centers in the hypothalamus. The brain is the primary controller of respiratory rate. 4. If you notice that you are having difficulty breathing, contact your physician, especially if this has come on suddenly. Blood pH -- a reflection of its relative acidity or alkalinity -- also influences respiratory rate. Exam 2 Review 3. Factors That Affect the Rate and Depth of Respiration. Long-press on the background to add labels, undo, and paste. Respiration is the act of in haling and exhaling. Powered by Create your own unique website with customizable templates. Name three physical factors that can modify respiratory rate or depth. For example, if you are swimming, you can hold your breath for extended periods of time. Acidaemia increases the respiratory rate by acting on the central chemoreceptors. Exercise (can cause an increase in ventilation) Laughing (causes short bouts of air to be released immediately after inspiration) Coughing (causes air to be purposely forced out of the lungs to clear the lower respiratory passages) 2. Factors That Affect the Rate and Depth of Respiration. The respiratory rate and the depth of inspiration are regulated by the medulla oblongata and pons; however, these regions of the brain do so in response to systemic stimuli. Factors that can cause a low respiration rate include: Drug overdose : An overdose of certain drugs, such as narcotics, can depress the breathing drive in the brain leading to low respiration rates. The rate and depth of respiration (pulmonary ventilation per minute) is adjusted according to requirement of the body. Hypoxia increases the respiratory rate, but hyperoxia does not suppress it. Breathing by Choice. Factors Influencing Respiratory Rate: Physical Factors-Talking, coughing, and exercise can modify the rate and depth of breathing. Several factors can affect respiratory rate and depth. Increased body temperature causes an increase in the rate of breathing. The respiratory rate and the depth of inspiration are regulated by the medulla oblongata and pons; however, these regions of the brain do so in response to systemic stimuli. Another factor that can influence breathing rate is allergic reactions to stimuli from the environment, such as pollen. Breathing Rate & Depth (determinant factors (PCO2 (major stimulus for…: Breathing Rate & Depth ... Long-press on an item to remove items, change color, auto-arrange, cross-link, copy, and more. ADVERTISEMENTS: The normal rate or respiration in an adult is 14 to 18 per minute with a tidal volume of about 500 ml. Acid–base balance: Alterations in acid–base balance (especially acidosis) commonly result in increased rate and depth of respirations (hyperventilation). It receives input from sensors that detect oxygen and carbon dioxide levels in the blood. Icons. In some cases, you do have the ability to control your breathing rate. Markdown - [X] to create a checkbox `text` to use a fixed width font. 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