1 / 10

17 November 2010

17 November 2010. Diffusion Role of veins Blood volume and blood pressure The Baroreceptor Reflex The Response to Hemorrhage. 1QQ # 29 for 8:30. Fenestrated capillaries are found in The liver The digestive tract Skeletal muscles the brain Endocrine organs

bing
Télécharger la présentation

17 November 2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 17 November 2010 Diffusion Role of veins Blood volume and blood pressure The Baroreceptor Reflex The Response to Hemorrhage

  2. 1QQ # 29 for 8:30 • Fenestrated capillaries are found in • The liver • The digestive tract • Skeletal muscles • the brain • Endocrine organs • Smooth muscles in arterioles relax when • Oxygen increases • Carbon dioxide increases • K+ concentration fall • adenosine increases • interstitial osmolarity increases.

  3. 1QQ # 29 for 9:30 • Discontinuous capillaries are found in • The liver • The digestive tract • Skeletal muscles • the brain • The spleen • A change in metabolism that causes a change in blood flow to a vascular bed is called • Flow autoregulation • Mediated transport • Metabolic autoregulation • Myogenic autoregulation • A Starling force.

  4. S 1 Diffusion, vesicle transport, bulk flow, mediated transport

  5. S 2 Fig. 12.40 Diffusion is the most important mode of exchange of nutrients

  6. S 3 Figure 12.44 Veins areCapacitance vessels(high compliance)with valves for unidirectional flow Arteries are low compliance, so any increase in volume increases pressure.

  7. S 4 Fig. 12.53 MAP = CO x TPR Negative feedback control:stimulus, receptors, afferent pathway(s), integrator, efferent pathway(s), effector(s)response(s)

  8. S 5 Fig. 12.54

  9. Story Time S 6 A Neuroscientist in New Orleans

  10. S 7 Test 3 Hemorrhage Diagram One the back side of this page, create a diagram for the following. Your response must be confined to the reverse side of this page and you must write legibly. Your response will count 15-20% of the grade on Test 3 and should require no more than ten minutes to complete at the beginning of the test. Beginning with a loss of about 1 liter of blood from a vein, diagram the early events associated with hemorrhage and the negative feedback responses to hemorrhage in a well-organized diagram. Write legibly! Completeness, accuracy, and detail, together with the proper sequence earn maximal points. The following abbreviations can be used: mAChR, Hct, Q, SV, RBC, HR, EDV, ACh, ANH, ADH, CO, TPR, EPO, VR, MAP, EPI, NE, SAN, aAdR , bAdR, Symp (sympathetic), Parasymp (parasympathetic), PV, r (radius), Pc, fAP (frequency of action potentials.) Any other abbreviations must be defined. "If in doubt, write it out!" Use single headed arrows (→) to indicate sequential relationships and doubled-stemmed arrows to indicate increases or decreases.

More Related