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Car/Pul Final Exam
SPC Cardiopulmonary Physiology Final Exam Unit 6 Review
Question | Answer |
---|---|
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 |