ANATOMY

GENERAL ANATOMY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which stage of urine production involves the removal of substances from the bloodstream?
A
reabsorption
B
excretion
C
filtration
D
secretion
Explanation: 

Detailed explanation-1: -As blood flows through the glomerulus, blood pressure pushes water and solutes from the capillaries into the capsule through a filtration membrane. This glomerular filtration begins the urine formation process.

Detailed explanation-2: -During secretion some substances±such as hydrogen ions, creatinine, and drugs-will be removed from the blood through the peritubular capillary network into the collecting duct.

Detailed explanation-3: -Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream.

Detailed explanation-4: -Urine is formed in three main steps-glomerular filtration, reabsorption and secretion.

Detailed explanation-5: -The filtration of blood is carried out in renal corpuscle. Glomerulus and Bowman’s capsule together form the renal corpuscle. Glomerulus is a group of blood capillaries that is present in the Bowman’s capsule of nephrons and is the seat, where the process of ultrafiltration takes place.

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