Capillary and Lymphatic System

What is the primary mechanism for nutrient and gas exchange in capillaries?

Diffusion.

What occurs simultaneously with diffusion in capillaries?

Bulk fluid flow.

What does hydrostatic pressure (HP) refer to?

The force exerted by a fluid pressing against a wall.

What is the capillary blood pressure greater at the arterial end compared to the venous end?

35 mmHg at arterial end and 16 mmHg at venous end.

What opposes hydrostatic pressure in capillaries?

Osmotic pressure created by non-diffusible molecules (plasma proteins).

What is the osmotic pressure of capillary plasma (OPC)?

26 mmHg.

What is the net fluid loss in capillaries per minute?

1.5 mL/min.

How does the excess fluid from interstitial spaces behave?

It is collected by the lymphatic system.

What is the function of lymphatic vessels?

They transport excess fluid from interstitial spaces back to the venous system.

Where does the thoracic duct empty lymph into the circulatory system?

At the juncture of the left subclavian vein and left internal jugular vein.