19. Cardiovascular System: Blood Vessels

Factors that influence blood pressure 

Blood Pressure

Renin angiotensin system regulates blood pressure

Regulation of blood pressure with baroreceptors

 Antidiuretic hormone acts on arterioles and kidney tubule cells to increase blood pressure. Angiotensin II acts on arterioles to increase blood pressure. Epinephrine acts on arterioles and the heart to increase blood pressure. Atrial natriuretic peptide acts on arterioles to lower blood pressure. 

 Which of the following acts on the kidneys and blood vessels to raise blood pressure? 

Anatomy and Physiology: Blood Flow and Pressure

Regulation of Blood Pressure (Hormones)

Blood Pressure in Arteries is Higher than in Veins

 The kidneys act both directly and indirectly to regulate arterial pressure and provide the major long-term mechanism of blood pressure control by altering blood volume. 

 The major long-term mechanism of blood pressure control is provided by the __________. 

Blood Pressure in Arteries, Veins and Capillaries

Baroreflex Regulation of Blood Pressure, Animation

Arterial Baroreceptor Reflex

 Short-term blood pressure regulation involves both neural and hormonal controls. Neural control is regulated by higher order brain centers, chemoreceptors, and baroreceptors. Long-term control of blood pressure is achieved through direct and indirect renal (kidney) control mechanisms.  

 Baroreceptors are effective in long-term regulation of blood pressure. 

 the level of carbon dioxide in the blood 

 Baroreceptors are sensitive to changes in blood pressure. 

 Most neural controls of blood pressure involve input from baroreceptors, which are sensitive to __________. 

Learn the toughest concepts covered in Anatomy & Physiology 1&2 with step-by-step video tutorials and practice problems by world-class tutors



Anatomy & Physiology

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1. Introduction to A&P

2. Chemistry

3. Cells

4. Tissues

5. Integumentary System

6. Bones + Skeletal Tissues

7. Skeletal System

8. Joints

9. Muscles and Muscle Tissue

10. Muscular System

11. Nervous Tissue

12. Central Nervous System

13. Peripheral Nervous System

14. Autonomic Nervous System

15. Special Senses

16. Endocrine System

17. Blood

18. Cardiovascular System: the Heart

20. Lymphatic System

21. Immune System

22. Respiratory System

23. Digestive System

24. Nutrition, Metabolism, Energy Balance

25. Urinary System

26. Fluid and Electrolyte Balance, Acid Base Balance

27. Reproductive System

28. Pregnancy and Human Development

29. Heredity

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Blood flow through tissues

Tissue Perfusion

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Vascular Disorders

Veins and their difference from arteries

Veins

Capillary exchange and bulk flow

Capillary Exchange

Pathway of blood through the pulmonary circuit

Major arteries and veins in the systemic circulation

Hepatic portal system

Circulatory Pathways

Blood pressure in arteries, capillaries, and veins

Layers of the blood vessel wall, vasoconstriction, and vasodilation

Blood Vessel Walls

Blood flow, blood pressure, and resistance

Blood Flow

Capillary beds

Capillaries 

Arteries

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