About This Chapter
Cardiovascular Physiology - Chapter Summary and Learning Objectives
In this chapter, you'll get an overview at how blood flows through your body and how the cardiovascular system responds to stress by watching short and engaging videos. Each lesson is taught by a subject expert who walks you through the processes of blood flow and blood pressure regulation and capillary fluid exchange. These videos each take about 5-6 minutes to watch, so you'll quickly advance through this chapter and close out your study of cardiovascular physiology with a solid grasp on key concepts like:
- What factors determine the rate of fluid exchanged within capillaries
- How blood glucose is regulated
- What problems are caused by too much or too little ADH in the body
- How stress impacts health
|Capillary Fluid Exchange||Assess how the rate of fluid movement across capillaries is determined using given hydrostatic and osmotic pressures.|
|How Blood Travels Throughout the Body||Get an introduction to pressure dynamics and discover how blood is distributed to body organs.|
|Total Peripheral Resistance & Blood Flow Regulation||Review the factors that are used to regulate blood flow through the vessels.|
|Regulation of Blood Pressure: Short Term Regulation & Baroreceptors||Determine how baroreceptors work to regulate blood pressure in the short-term.|
|Regulation of Blood Glucose: Importance & Nutrient Conversion||Describe the elements that are used to keep blood sugar levels normal.|
|Problems with ADH: SIADH and Diabetes Insipidus||Observe the various conditions that occur when ADH can't regulate the balance of water in our bodies.|
|Stress: Definition and Impact on Overall Health||Delve into the different types of stress and how they affect your body and health.|
|Cardiovascular Responses to Stress, Exercise & Hemorrhage||Analyze the different responses to stress exhibited by the cardiovascular system.|
1. Capillary Fluid Exchange
How do we get nutrients from blood into the rest of our bodies? The answer is through capillary fluid exchange, and in this lesson we'll discuss what this process is and how it works. Then, test your understanding with a brief quiz.
2. How Blood Travels Throughout the Body
This lesson is going to cover the different blood vessels that carry blood throughout the body. The route and changes in blood pressure will also be discussed. A short quiz will follow.
3. Total Peripheral Resistance & Blood Flow Regulation
Blood flows continually through your heart and blood vessels. As the needs of the body change, blood flow needs to increase or decrease. Learn how vasodilation, vasoconstriction and other factors change the amount of resistance within your blood vessels to change blood flow through your body.
4. Regulation of Blood Pressure: Short Term Regulation & Baroreceptors
Blood pressure in your blood vessels is closely monitored by baroreceptors; they send messages to the cardio regulatory center of your medulla oblongata to regulate your blood pressure minute-by-minute. In this lesson, you will learn how baroreceptors regulate your short-term blood pressure.
5. Regulation of Blood Glucose: Importance & Nutrient Conversion
Blood glucose levels are closely regulated and maintained within a narrow range. Learn how the pancreatic hormones, insulin and glucagon, maintain normal blood sugar levels and how other nutrients can be converted to blood glucose in this lesson.
6. Problems with ADH: SIADH and Diabetes Insipidus
Humans can live about three weeks without food, but only about three days without water. Antidiuretic hormone (ADH) helps maintain our body's water balance. In this lesson we'll take a look at what happens when there's either too much or too little ADH in the body.
7. Stress: Definition and Impact on Overall Health
Stress, distress, eustress: just thinking about those terms may make you stress out! Don't worry, this lesson will define them and show plenty of examples of them in a manner that will calm your mind!
8. Cardiovascular Responses to Stress, Exercise & Hemorrhage
When you get nervous, you may stutter, your palms may get sweaty, and you may even get weak in the knees. These reactions vary, but almost everyone feels their heart race. In this lesson, we'll see why.
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