Describe the mechanism of bulk flow in both directions within a fenestrated capillary. What are the names given to these two types of movements? Why do they happen on opposite sides of the capillary? What are the driving forces for each?

Q: What force is responsible for moving fluids out of capillaries at the arteriole end and moving…

A: Step 1 Capillaries are the blood vessels that are very narrow with a diameter of 5-8 µm. It develops…

Q: What is the functional significance of the difference in thickness between the wall of the aorta and…

A: The aorta is the main artery which carries blood away from heart to the rest of  body.  The…

Q: What is the function of elastic fibers and smooth muscle in the tunica media of arteries?

A: Vascular smooth muscle cells (VSMCs) are physiological and therefore the most various part of the…

Q: Compare the structure of the left atrioventricular valve with that of the aortic valve.

A: Human heart has four chambers. It is a muscular organ whose shape is like a person’s closed fist The…

Q: Describe the differences between a continuous capillary, a fenestrated capillary, and a sinusoid.

A: Continuous capillaries are so called because the endothelial cells provide an uninterrupted lining…

Q: What is the reason for coloring blood vessels red and blue in drawings? Which vessels are usually…

A: Veins are the only blood vessels that can be visible near the outside of the epidermis since…

Q: Why less pressure is lost overcoming resistance between the arteries and the capillaries?

A: The oxygenated blood pumped by the left ventricle have a certain amount of pressure in it which…

Q: Explain the main structural differences between arteries and veins that are responsible for their…

A: Blood pressure is the pressure exerted by the arterial wall or blood vessel when the blood flows…

Q: Which of the following connects vessels through vascular anastomoses? a. precapillary sphincters c.…

A: BASIC INFORMATION  BLOOD VESSELS  These are components of Circulatory system. They have the…

Q: List three ways in which substances can cross the capillary wall.

A: The exchange of materials from the blood into the tissues present in the capillary is called…

Q: Define capillary exchange and describe the two majorforces involved.

A: Capillary exchange refers to the exchange of material from the blood into the tissues in the…

Q: Describe the processes that move materials across the walls of a capillary.

A: The process of exchange of materials between the blood and tissues in the capillaries is known as…

Q: Describe the exchange of materials across the walls of a capillary.

A: Diffusion, the foremost widely-used mechanism, permits the flow of tiny molecules across capillaries…

Q: Under what conditions will the myogenic mechanism slow blood flow into a capillary bed? O rising…

A: Myogenic mechanism refers to the the response of the arteries to the increasing blood pressure. The…

Q: What is a a bulge in the arterial wall called?

A: Ans. A bulging, weak region in the blood vessel wall is called an aneurysm. It can occur in any…

Q: Mention two structural differences between vein and capillary.

A: Heart carries arteries, veins and capillaries. The principle artery is called as aorta. The function…

Q: Explain why empty veins collapse while empty arteries do not.

A: The arteries are blood vessels carrying oxygen-rich blood to every region of the body. The veins are…

Q: Describe the properties of the three types of capillaries, and explain how they differ?

A: Arteries, Veins and Capillaries are the blood vessels through which blood flows. These vessels begin…

Q: Describe the major factors that affect the rate of capillaryexchange.

A: Answer- Capillary exchange is the process in which nutrients and other materials are exchanged from…

Q: Discuss Velocity of Capillary Blood Flow?

A: The cardiovascular system consists of the heart, blood vessels and blood. The heart is the pumping…

Q: What is the primary cause of the low velocity of bloodflow in capillaries?

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: Why does the total cross-sectional area in the capillary system lower the resistance to flow?

A: Cardiovascular system comprises of Heart, blood vessels and blood. The function of cardiovascular…

Q: Which of the layers of a vein is responsible for changes in the vein’s diameter? (a) endothelium,…

A: The vein wall consists of three layers: The tunica intima, the tunica media, and the tunica…

Q: Explain why the distal ends of the arterial and capillary systems are branched?

A: Arteries and capillaries are the blood vessels of the circulatory system.

Q: What exactly is blood pressure? How does it differ amongst vessel types (where is it…

A: A1) Blood pressure is the force per unit area which is exerted on the vessel walls by the blood in…

Q: List several specific substances that diffuse across capillarywalls.

A: The walls of capillaries are composed of a thin singe layer called endothelium.

Q: Why is the velocity of blood flow faster in arteries and veins than in capillaries?

A: Rate or Velocity of blood flow varies inversely with the total cross sectional area of the blood…

Q: Explain why water and dissolved substances leave the arteriolar end of a capillary and enter the…

A: The blood vessels are part of the circulatory system. It forms a closed circuit of tubes that carry…

Q: What are five histological features of sinusoidal capillaries?

A: Sinusoidal capillaries are also known as discontinuous capillaries. Such capillaries have open-pore…

Q: explain why  the distal ends of arterial and capillary systems are highly branched

A: In the body, the beating of the heart causes the pumping of blood throughout the system via the…

Q: Identify the three main branches of the aortic arch that receiveoxygenated blood, and identify the…

A: The three main branches of the aortic arch are: Brachiocephalic trunk: It is the largest branch of…

Q: Describe the structure and function of a capillary.

A: Capillaries are the structures that connect the arterioles to venules. These connect arterial blood…

Q: What is capillary conductivity or capillary permeability and also describe about its factors?

A: Capillaries play a significant role in the physiology of the body. They are the minute blood…

Q: In coronary bypass surgery, the internal thoracic artery can be used as the bypass vessel by…

A: Coronary bypass surgery creates a new route around blocks and narrow coronary arteries that allow…

Q: List the Regional Differences in Capillary Pressure?

A: Capillary pressure is the pressure difference existing across the interface separating two…

Q: viscosity of the fluid affect the capillary height?

A: Viscosity is the resistance for fluidity of liquid. Hence it also affects the capillary height.…

Q: List in order the major blood vessels, chambers, and valves through which a drop of blood must pass…

A: Vena cava – the large vein that returns blood to the heart from the body parts. Superior vena cava…

Q: Contrast diffusion and bulk flow. Which mechanism is more important in the exchange of nutrients,…

A: *The primary difference between the diffusion process and bulk flow is due to the concentration…

Q: What is cardiovascular mechanics and why is it relevant ?

A: Circulatory system plays the very important role of delivering nutrients and oxygen to the cell and…

Q: Briefly describe and compare sinusoids and fenestrated capillaries with continuous capillaries. Give…

A: Capillaries are small (3 to 4 µm) blood vessels that connect venules to the arterioles. Capillaries…

Q: Explain in detail composition of Pericardial fluid? plz explain in detail

A: Answer: Introduction: The heart consists of inner layer called as pericardium.

Q: What is the only solute that has a significant concentration difference across the capillary wall?…

A: * Across the capillary wall large plasma proteins has a significant difference in concentration. *…

Q: What is vasomotion? What is autoregulation of local bloodflow?

A: Answer: Introduction: Vasomotion controls liquid and nutrient exchange amongst the vascular system…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.