Blood cells (White blood cell, Red blood cell), Proteins
An increase in blood pressure or an increase in blood volume can lead to an increase in the amount of fluid entering Bowman's capsule (glomerular filtration rate) due to increased glomerular blood flow. This can be seen in conditions such as hypertension or congestive heart failure.
The kidney.vasa recta
filtrate
I believe youre asking what fluid makes the joints movement fluid... the answer is synovial fluid, made of mostly water. Its held between the bones by an overall structure called the joint capsule. There are smaller, more specific parts of the joint capsule, but I wont go into detail. Synovial fluid is not secreted by the joint capsule or the surrounding cartilage, however. Since the capsule is richly vascularized but poorly innervated, it just takes in water from the bloodstream whenever necessary to keep the capsule filled. It does not create its own synovial fluid.
The movement of materials into Bowman's capsule is opposed by two forces.1) Capsule pressure (CP) produced by the walls of Bowman's capsule and fluid alreadyinside the capsule.2) Colloid osmotic pressure (COP) results from the proteins in the blood. Because most proteins do not pass from the blood into the filtrate, the blood is more concentrated than the filtrate. Therefore water tends to move from the capsule back into the blood.
Bowman's capsule
They increase the fluid exchange inside the joint capsule, helping synovial fluid lubricate the surfaces so they have less friction.
Surrounding synovial fluid
The high pressure vessel that forces fluid and solutes into the glomerular capsule is the glomerulus. It is a network of capillaries located within the Bowman's capsule in the kidney where blood is filtered to form the initial filtrate that will eventually become urine.
The portion of the nephron receiving filtrate from the glomerular capsule is the proximal convoluted tubule. It is responsible for reabsorbing substances such as glucose, ions, and water from the filtrate into the blood. This process helps regulate the body's balance of electrolytes and fluid volume.
A synovial joint has a joint capsule. This capsule surrounds the joint and is lined with a membrane that secretes synovial fluid, which helps reduce friction and provide nutrients to the joint.
Synovial - the articulating bone ends are covered with articular cartilage, and enclosed within an articular capsule that is typically reinforced by ligaments externally. Internally the fibrous capsule is lined with a smooth synovial membrane that secretes synovial fluid.