WVSOM -- Physio Word Scramble
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| Question | Answer |
| Medullary CV center | Vasomotor (ventrolateral medulla) Cardioacceleratory Cardioinhibitory |
| Blood Pressure Control | Baroreflex |
| High pressure receptors | Carotid sinus Aortic Arch |
| Low Pressure Receptors | Cardiopulmonary receptors pulmonary artery Junctino of atria w/ corresponding veins |
| Response to orthostatic pooling of blood | Decreased Stretch -> Increased SNS Decreased PNS |
| SNS on B1 in orthostatic hypotension | increased HR Increased contractility Increased SV |
| SNS on arterioles | Consticts Increased Peripheral Resistance |
| SNS on Veins | Increased Vascular Resistance Increased Stroke Volume Increased Cardiac Output |
| SNS on Kidneys | Increased Na Increased H2O Increased BV increased VR Increased CO |
| Baroreflex to increased arterial Pressure | NTS decreases SNS and Increases PNS resulting in decreased HR |
| Increased Stretch Leads to | increased HR VD to kidnes Decrease in ADH Myocytes release ANP |
| Decreased stretch leads to | no effect on HR Increased SNS to kidneys Increased release of ADH, AVP |
| Stretch of high-pressure receptors | Due to increased BP reflex works to decrease BP |
| Stretch of Low-pressure receptors | increased volume relex works to dump fluid |
| Hormonal Control | Epinephrine AVP ADH ANP |
| AVP or ADP | Vasopressin Anti-diuretic Hormone Synthesized in the hypothalamus and released from pituitary |
| Stimulus for release of vasopressin | Increased plasma osmolality Decreased volume Circulating Ang II |
| AVP Actions | vasoconstrict retention of fluid by kidney to increase volume |
| RAAS | Renin-Angiotensin-Aldosterone-System |
| Angiotension I -> | Angiotension II by enzyme ACE |
| Angiotensin II results in | Increased Aldosterone Decreased Na Excretion Increased Systemic Vascular Resistance |
| Role of chemoreceptors in AP regulation | Important role in severe hypoxia Decreased pO2, Increased pCO2, and Decreased pH Central Sense: elevated CO2 leading to decreased pH |
Created by:
tjamrose
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