Final answer:
The correct order of blood supply to the kidneys is: Renal artery, Segmental arteries, Interlobar arteries, Arcuate arteries, Interlobular arteries, Afferent arteriole, Glomerulus, Efferent arteriole. Option 1 is the correct order.
Step-by-step explanation:
The correct order of blood supply to the kidneys is:
- Renal artery
- Segmental arteries
- Interlobar arteries
- Arcuate arteries
- Interlobular arteries
- Afferent arteriole
- Glomerulus
- Efferent arteriole
This means that option 1 is the correct order of blood supply to the kidneys.
The correct order of blood supply to the kidneys involves a series of vessels that ensure proper filtration and regulation of blood. Oxygenated blood is supplied to the kidneys through the renal arteries, branching off from the abdominal aorta. These renal arteries further divide into smaller arteries, eventually forming the interlobar arteries, which run through the renal columns between the renal pyramids.
The interlobar arteries give rise to the arcuate arteries, which arch along the boundary between the renal cortex and medulla. From the arcuate arteries, smaller vessels known as interlobular arteries extend into the renal cortex. These arteries eventually give rise to a network of tiny blood vessels called the glomerulus, where filtration of blood occurs in the nephrons.
The filtered blood is then collected by efferent arterioles, leading to the formation of peritubular capillaries or vasa recta, which surround the renal tubules. Finally, deoxygenated blood exits the kidneys through the renal veins, returning to the inferior vena cava and subsequently the heart for oxygenation. This intricate vascular network ensures the proper functioning of the kidneys in maintaining fluid and electrolyte balance.