noun
definition
A small pipe or fistular body; a little tube.
example
renal tubule
Examples of tubules in a Sentence
Some of the outermost tubules of the ep06phoron are sometimes distended to form hydatids.
The larvae of this parasite develop in the Malpighian tubules of the insect; at a certain stage they cast their cuticle and make their way into the space - part of the haemocoel - found in the labium.
Lameere's classification is founded on the number of abdominal sterna, the nervuration of the wings, the number of malpighian tubules (whether four or six) and other structural characters.
There are four malpighian tubules.
Except for the absence of 'the longitudinal fibres the skin of the proboscis resembles that of the body, but the fluid-containing tubules of the latter are shut off from those of the body.
Further, it is pointed out by Korschelt and Heider that the hinder portion of the gut frequently acts in Arthropoda as an organ of nitrogenous excretion in the absence of any special excretory tubules, and that the production of such caeca from its surface in separate lines of descent does not involve any elaborate or unlikely process of growth.
Black droplets of oil are seen in the epithelial cells lining the secreting tubules.
They consist of a pair of tubules with an intracellular lumen running up the sides of the body, at times merely sinuous, at others considerably convoluted.
Nearer the uterus than the ep08phoron a few scattered tubules are occasionally found which are looked upon as the homologue of the organ of Giraldbs in the male, and are known as the paroophoron.
In the female the tubules of the epodphoron represent the main part, Pronephros.
A little above the globus major a few scattered tubules are found in children in front of the cord; these form the rudimentary structure known as the organ of Giraldes or paradidymis.
These tubules are the excretory tubules or nephridia.
There are reasons for supposing that these funnels are vestiges of an ancient excretory system, which has given way by substitution to the excretory tubules described above.
The medulla is full of renal tubules, but does not contain renal corpuscles.
Potassium - Adaptive processes increase potassium secretion in the distal nephron (collecting tubules) and also in the gut.
T tubules are invaginations of muscle cell plasma membrane.
Aldosterone achieves this by its action on the collecting tubules of the kidney.
Can you identify the seminiferous tubules in the picture?
Uranium has a particular effect on the proximal tubules of the kidney.
Among them is Fanconi's syndrome, which is a dysfunction of the proximal kidney tubules.
The aperture, which was formerly supposed to be an aquiferous pore, leads into an extensive and often ramified cavity surrounded by glandular tubules.
It is important to emphasize the fact that in Amphioxus the excretory tubules are co-extensive with the gill-clefts.
Thus, transverse tubules may conduct electrical action potentials from the surface of the muscle fiber deep into the interior of the fiber.
As a result, the amount of glucose that gets filtered into the kidney tubules increases also.
Among them is Fanconi 's syndrome, which is a dysfunction of the proximal kidney tubules.
The increased amount of FSH and LH cause hyalinization and fibrosis, the growth of excess fibrous tissue, in the seminiferous tubules, where the sperm are normally located.
Tooth sensitivity - A dental laser can seal tubules at the root of the tooth that cause hot and cold sensitivity.