Cuvierian tubules: clusters of sticky tubules located at the base of the respiratory tree, which may be discharged by some
sea cucumbers (
holothurians) when mechanically stimulated (i.e. being threatened by a predator)[5]
Distal convoluted tubule: the convoluted portion of the vertebrate
nephron that lies between the loop of Henle and the nonsecretory part of the
nephron and that is concerned especially with the concentration of
urine[3]
Loop of Henle: the long U-shaped part of the renal tubule, extending through the medulla from the end of the
proximal convoluted tubule. It begins with a descending limb (comprising the proximal straight tubule and the thin tubule ), followed by the ascending limb (the distal straight tubule ), and ending at the
distal convoluted tubule[2]
Renal tubule: the minute canals made up of
basement membrane and lined with
epithelium, composing the substance of the
kidney and secreting, reabsorbing, collecting and conducting the
urine. Include proximal convoluted, the nephron loop (containing the proximal straight tubule, descending and ascending thin, and the distal straight tubules) and the
distal convoluted tubules[4]
T tubule: transverse
intracellular tubules invaginating from the
cell membrane and surrounding the
myofibrils of the T system of skeletal and cardiac muscle, serving as a pathway for the spread of electrical excitation within a
muscle cell
Cuvierian tubules: clusters of sticky tubules located at the base of the respiratory tree, which may be discharged by some
sea cucumbers (
holothurians) when mechanically stimulated (i.e. being threatened by a predator)[5]
Distal convoluted tubule: the convoluted portion of the vertebrate
nephron that lies between the loop of Henle and the nonsecretory part of the
nephron and that is concerned especially with the concentration of
urine[3]
Loop of Henle: the long U-shaped part of the renal tubule, extending through the medulla from the end of the
proximal convoluted tubule. It begins with a descending limb (comprising the proximal straight tubule and the thin tubule ), followed by the ascending limb (the distal straight tubule ), and ending at the
distal convoluted tubule[2]
Renal tubule: the minute canals made up of
basement membrane and lined with
epithelium, composing the substance of the
kidney and secreting, reabsorbing, collecting and conducting the
urine. Include proximal convoluted, the nephron loop (containing the proximal straight tubule, descending and ascending thin, and the distal straight tubules) and the
distal convoluted tubules[4]
T tubule: transverse
intracellular tubules invaginating from the
cell membrane and surrounding the
myofibrils of the T system of skeletal and cardiac muscle, serving as a pathway for the spread of electrical excitation within a
muscle cell