Cell and Tissue Biology

Objects

All labeled objects are listed alphabetically. Click the appropriate letter below and then on an object name...

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Object names starting with "U":

Object Name # of Images Description
Umbilical arteries 1 The two specialized umbilical arteries carry deoxygenated blood from the fetus to the placenta.
Umbilical artery (lumen) 1 The two specialized umbilical arteries carry deoxygenated blood from the fetus to the placenta. The arterial lumen closes after the umbilical cord is cut.
Umbilical artery (wall) 1 The two specialized umbilical arteries carry deoxygenated blood from the fetus to the placenta.
Umbilical artery (wall) 1 The two specialized umbilical arteries carry deoxygenated blood from the fetus to the placenta.
Umbilical artery lumen (closed) 1 The two specialized umbilical arteries carry deoxygenated blood from the fetus to the placenta. The arterial lumen closes after the umbilical cord is cut, as shown in this view.
Umbilical vein 1 The single specialized umbilical vein carries oxygenated blood from the placenta to the fetus
Umbilical vein (lumen) 1 The lumen of the single specialized umbilical vein carries oxygenated blood from the placenta to the fetus
Umbilical vein (wall) 1 Wall of the umbilical vein. The single specialized umbilical vein carries oxygenated blood from the placenta to the fetus
Unilaminar primary follicle 1 Early stage of follicular development in the ovary.
Unit membrane 1 Consists of two lipid bilayers and the contents of the space between them.
Unit membrane 1 Consists of two lipid bilayers and the contents of the space between them.
Unmyelinated nerve bundles 1 The axons emerging from the olfactory receptor cells do not have a myelin sheath and tend to form bundles.
Unmyelinated nerve fiber bundle 1 The axons emerging from the olfactory receptor cells do not have a myelin sheath and tend to form bundles.
Unmyelinated nerve fibers 1 Are difficult to identify in the LM just because they lack a myelin sheath. In the TEM they appear embedded in a single Schwann cell.
Unmyelinated nerve fibers 1 Are difficult to identify in the LM just because they lack a myelin sheath. In the TEM they appear embedded in a single Schwann cell.
Unmyelinated nerve fibers 2 Are difficult to identify in the LM just because they lack a myelin sheath. In the TEM they appear embedded in a single Schwann cell.
Urinary pole 1 The exit of the proximal tubule from the renal corpuscle.
Urinary pole 1 The exit of the proximal tubule from the renal corpuscle.
Urinary pole 1 The exit of the proximal tubule from the renal corpuscle.
Uterine epithelium 2 The columnar epithelium lining the uterine lumen. Continuous with the epithelium lining the uterine glands.
Uterine gland (coiled) 2 During the secretory phase of the menstrual cycle the uterine glands coil. Their lumina become wider, and they begin secreting.
Uterine gland lumen (wide) 1 During the secretory phase of the menstrual cycle the uterine glands coil. Their lumina become wider, and they begin secreting.
Uterine gland lumina 1 During the secretory phase of the menstrual cycle the uterine glands coil. Their lumina become wider, and they begin secreting.
Uterine glands (bases) 1 During the proliferative phase of the menstrual cycle the uterine glands are straight and their lumina are narrow.
Uterine glands (coiled) 1 During the secretory phase of the menstrual cycle the uterine glands coil. Their lumina become wider, and they begin secreting.
Uterine glands (straight) 1 During the proliferative phase of the menstrual cycle the uterine glands are straight and their lumina are narrow.
Uterine glands (straight) 1 During the proliferative phase of the menstrual cycle the uterine glands are straight and their lumina are narrow.
Uterine tube 1 Loosely surrounds the ovary. Receives and transports the oocyte or the fertilized egg into the lumen of the uterus.
Uterine tube 1 Loosely surrounds the ovary. Receives and transports the oocyte or the fertilized egg into the lumen of the uterus.
Uterine tube artery 1 The arteries of the uterine tube are specialized and have thick walls. They probably aid in movement of the tube at the time of ovulation.
Uterine tube epithelium 1 Composed of ciliated and secretory columnar cells. Occasional endocrine-looking cells are found in the epithelium.
Uterine tube epithelium 1 Composed of ciliated and secretory columnar cells. Occasional endocrine-looking cells are found in the epithelium.
Uterine tube lumen 1 (Self-explanatory)
Uterine tube lumina 1 This lumen is very irregularly-shaped because of the highly-infolded mucosa and the coiled nature of the tube.

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