7. Growth will result in ____ total vessel length and an ____ blood pressure.8. Arteriosclerosis will result in ____ vessel elasticity and an ____ blood pressure.
9. Excessive sweating will result in a short term ____ in blood volume and a ____ in blood pressure.10.An in epinephrine will result in ____ vessel diameter and an ____ in blood pressure.The Cardiovascular System: Blood Pressure Regulation1.a. Short term mechanisms for regulating blood pressure include regulating what three things?1. Vessel diameter2. Heart rate3. Contractilityb. Long term mechanisms will regulate ___________Blood Volume_______________.2.Two major arterial baroreceptors are located where?a.Carotid sinusb. Aortic arch3.Using up and down arrows, show the effect of increased blood pressure (BP) on the impulses sent to the brain, the effect on the parasympathetic (PNS) and sympathetic (SNS) nervous systems and the resulting change in blood pressure.BP ____ impulses ____ PNS and ____ SNS ____ BP4.As a result of these changes in the PNS and SNS, list two effects on the heart and one on blood vessels.Heart:1. Decreased heart rate 2. Decreased cardiac output
Blood vessels:Vasodilation5.Similar to question 3, show the effect of decreasing blood pressure.BP ____ impulses ____ PNS and ____ SNS ____ BP6.In addition to effects on the heart and blood vessels, what hormones were released from the adrenal gland? ___________Epinephrine ______________________ and _______________Norepinephrine__________________7.a. What cells in the kidney monitor low blood pressure? _______Juxtaglomerular __________b. What enzyme is released as a result of low blood pressure? ______8.Name two effects of Angiotensin II.9.a. The main effect of aldosterone is: _Increase in Sodium(Na+) reabsorption in kidneys_______________b. How does this increase blood volume? __________10.a. What other hormone will increase water reabsorption from the kidney? _______Antidiuretic Hormone (ADH) __________b. What is the major stimulus for this hormone? ____Increase in plasma osmolality___The Cardiovascular System: Autoregulation and Capillary Dynamics
1. a. What regulates the flow of blood into true capillaries? ___Pre-capillary sphincter_________b. If all sphincters are closed, blood is ____Shunted _______ to the venules through ______Thoroughfare_______ capillaries.2. Use arrows to show whether high or low levels of the following would cause the feeder arterioles to dilate and the sphincters to relax:3. Physical factors also act as regulatory stimuli. How would the following affect arterioles?a. Decreased blood pressure __More perfusion (flowing of blood) in arterioles___________b. Increased blood pressure __________less perfusion in arterioles__________4. Name three structural characteristics of capillaries which allow for passage of materials out of the capillaries.