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Car/Pul Final Exam

SPC Cardiopulmonary Physiology Final Exam Unit 6 Review

QuestionAnswer
Anatomical location of "Irritant Receptors" Between the epithelial cells of the large conducting airways
Stimuli of "Irritant Receptors" 1. Gasses/Chemical: smoke, dust, chlorine, ammonia 2. Mechanical: Foreign bodies i.e. pennies & toys
Responses of Irritant Receptor stimulation? 1. Hyperpnea 2. Cough 3. Bronchoconstriction 4. Laryngeal Constriction of Expiration (Expiratory Grunt)
Anatomical location of "J Receptor" Within Pulmonary Interstitium
Stimuli of "J Receptors" 1. Interstitial Edema 2. Pulmonary Emboli
Responses of J Receptor stimulation? 1. Hypopnea 2. Tachypnea 3. Expiratory Grunt
3 Fetal Shunts? 1. Ductus Venosus 2. Foramen Ovale 3. Ductus Arteriousus
Identify Ductus Venosus? Communicates the umbilical vein with the Inferior Vena Cava
Identify Foramen Ovale? Communicates the fetal atria
Identify Ductus Arteriosus? Communicates the pulmonary artery with the descending aorta
Closure of Foramen Ovale? 1. Decrease right atrial pressure as IVC blood flow decreases 2. Increased left atrial pressure as pulmonary venous blood flow increases.
Closure of Ductus Arteriosus? 1. Decreased levels prostaglandin E1 2. Increased PaO2 3. Decreased PVR
Aging Mechanics 1. Decreased ELASTANCE 2. Increased Raw
Pulmonary changes with aging? 1. Increase Residual Volume 2. Decrease Expiratory flows 3. Decrease Diffusion Capacity
Cardiovascular changes with aging? 1. Hypertrophy Left Ventricle (Increased Afterload) 2. Decreased Vascular Compliance 3. Decreased SV #1 & #2
Normal vale for WOB? 0.5 joules/L
What is "Oxygen Cost?" Oxygen consumption of the respiratory muscles
Oxygen cost is less than what? 5% of Total O2 consumption (12ml/min)
What is significant of Oxygen Cost of breathing? Increases with alteration of: 1. Increase RAW 2. Decrease GAW 3. Decrease Lung/Chest Wall Compliance 4. Decrease Elastance 5. Emphysema >120ml/min
Pulmonary changes with exercise? 1. Increased VE 2. Increased VA 3. Increased Diffusion Capacity
Cardiovascular changes with exercise? 1. Increased VO2 2. Increased O2ER 3. Decreased SvO2 4. Increased Ca-vO2 5. Increased SV x50% 6. Increased HR x200% 7. CO reaches 90% of Max
Created by: Langhout1418