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Efferent arteriole is narrower so as to create hydrostatic pressure for the process of ultrafilteration.
What else can I help you with?
Explain how the blood vessels associated with the renal corpuscle help to maintain a relatively high blood pressure within the glomerulus?
The cluster of capillaries that forms a glomerulus arises from an afferent arteriole. After passing through the glomerular capillaries, blood (minus any filtered fluid) enters an efferent arteriole whose diameter is smaller than that of the afferent vessel. This is instead of entering a venule, the usual circulatory route. The efferent arteriole resists blood flow to some extent, which backs up blood into the glomerulus, increasing pressure in the glomerular capillary.
The pathway of blood in renal circulation?
Aorta a. Renal a. Segmental a. Interlobar a. Arcate a. Interlobular a. Afferent Arteriole Glomerulus Efferent Arteriole Peritubular capillaries Interlobular v. Arcate v. Interlobar v. Renal v. Inferior Vena Cava
How does blood travel through the kidney?
Blood enters the kidney through the renal artery, which branches off into smaller arterioles called afferent arterioles that lead to the glomerulus. In the glomerulus, blood is filtered to remove waste products and excess substances. The filtered blood then leaves the kidney through the renal vein.
What does a arteriole do?
they are just smaller versions of ateries
Small artery is called?
An artery, only an arteriole can be smaller
What are spider nevi?
small, benign reddish lesions that consist of a central arteriole, which is a very small branch of an artery with smaller vessels radiating from it
How is kidney nephron adapted to its function?
Blood is filtered through the capillaries of the glomerulus into the Bowman's capsule. The Bowman's capsule empties the filtrate into a tubule that is also part of the nephron. The function of the glomerulus is to filter the resultant fluid that will become urine.
What systems are the circulatory connected to?
Every part of the body requires oxygen in order to maintain metabolism and the circulatory system reaches all body tissues. Arteries are progressively split into smaller and smaller feed vessels (arteriole). At the final stage the blood flows into and out of the capillaries.
What is a small artery known as?
A small artery is known as an arteriole. Arterioles are smaller branches of arteries that lead to capillaries and play a crucial role in regulating blood flow and blood pressure within the circulatory system. They have muscular walls that can constrict or dilate to control the amount of blood that reaches specific tissues.
Why does a reflex nerve pathway move faster than a normal nerve transmission?
Reflex nerve pathway is a monosynaptic transmission. There are no interneurons involved. Only the limb that carries the afferent nerve impulse from the stimulus and the efferent motor function for the reflex involved. That is why it is faster. Normal nerve transmission require an interpretation of the impulse by the brain whereas reflex pathways do not. Another reason is because most reflexes from the exteroreceptors travel along myelinated axons (white matter) which carry the impulse faster than other neurons that have unmyelinated axons (grey matter).
The smallest blood vessel?
The smallest arteries of the human body are the arterioles, which supply blood into the capillary network from the main arteries (artery-->arteriole-->capillary-->venule-->vein). They hold plasma and filtrates, and are usually only wide enough to hold a single red blood cell at a time (in some cases, they are smaller than a RBC).
What are tiny blood vessels connect veins and arteries?
Arteries divide into smaller vessels called Arteriols. Arteriols subdivide into even smaller vessels called capillaries, where oxygen, nutrients, hormones are delivered to the tissues of the body. Waste products are also picked up by capillaries and delivered to venules which grow into larger vessels called veins. Veins deliver deoxygenated blood back to the heart.
