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 "O":

Object Name # of Images Description
Odontoblast layer 1 Layer of cells producing dentin in the developing tooth.
Olfactory cell nuclei 1 Prominent membrane-bounded organelles in eukaryotic cells containing DNA. Sites of synthesis of various RNA's.
Olfactory epithelium 2 Contains olfactory receptor cells and supporting cells.
Olfactory knobs 1 Dendritic processes of the olfactory receptor cells from which the cilia containing molecular receptors extend.
Olfactory knobs 1 Dendritic processes of the olfactory receptor cells from which the cilia containing molecular receptors extend.
Olfactory mucosa 1 Composed of olfactory epithelium and underlying glands and nerve fibers.
Oligodendrocyte 1 Oligodendrocytes are responsible for myelin formation in the CNS. They also produce growth factors.
Oligodendrocyte 2 Oligodendrocytes are responsible for myelin formation in the CNS. They also produce growth factors.
Oligodendrocyte cytoplasm 1 Oligodendrocytes are responsible for myelin formation in the CNS. They also produce growth factors.
Oligodendrocyte nuclei 1 Oligodendrocytes are responsible for myelin formation in the CNS. They also produce growth factors. With ordinary stains only the nuclei of glial cells are seen.
Oligodendrocyte process 1 Oligodendrocytes are responsible for myelin formation in the CNS. They also produce growth factors.
Oligodendrocytes 1 These are responsible for myelin formation in the CNS. They also produce growth factors.
Oocyte cytoplasm 1 The cytoplasm is plentiful. Contains many mitochondria and granules.
Oocyte nucleolus 1 Nucleoli are the site of rRNA synthesis and are especially prominent in oocytes.
Oocyte nucleus 1 Prominent membrane-bounded organelle in a eukaryotic cell containing DNA. Site of synthesis of various RNA's.
Oocyte nucleus 1 Prominent membrane-bounded organelle in a eukaryotic cell containing DNA. Site of synthesis of various RNA's.
Optic nerve fibers (myelinated) 1 This is from the optic chiasm where the fibers cross.
Oral cavity 1 Marked for orientation purposes.
Oral ectoderm 1 Indentations of the oral ectoderm form the enamel organ.
Orbicularis oculi (skeletal) 1 Sphincter muscle of the eyelids. Innervated by facial nerve.
Orbicularis oculi (skeletal) 1 Sphincter muscle of the eyelids. Innervated by facial nerve.
Orbicularis oculi (skeletal) cs 1 Sphincter muscle of the eyelids. Innervated by facial nerve.
Organ of Corti 1 Hearing organ.
Organ of Corti 2 Hearing organ.
Osteoblasts 1 Bone-forming cells. Originate in bone marrow stroma.
Osteoblasts 1 Bone-forming cells. Originate in bone marrow stroma.
Osteoblasts 1 Bone-forming cells. Originate in bone marrow stroma.
Osteoblasts 2 Bone-forming cells. Originate in bone marrow stroma.
Osteochondroclast 1 Bone and cartilage removal cell.
Osteochondroclasts 1 Bone and cartilage removal cells.
Osteoclast 3 A multinucleated cell active in bone removal. Originates from bone marrow hematopoetic stem cell. Plays an important role in bone turnover. Travels to bone as a mononuclear precursor.
Osteoclast 1 A multinucleated cell active in bone removal. Originates from bone marrow hematopoetic stem cell. Plays an important role in bone turnover. Travels to bone as a mononuclear precursor.
Osteoclasts 2 Multinucleated cells active in bone removal. Originate from bone marrow hematopoetic stem cell. Play an important role in bone turnover. Travel to bone as a mononuclear precursor.
Osteocyte 1 A mature bone cell surrounded by bone matrix. Spider-shaped.
Osteocyte 1 A mature bone cell surrounded by bone matrix. Spider-shaped.
Osteocyte 1 A mature bone cell surrounded by bone matrix. Spider-shaped.
Osteocyte lacunae & canaliculi 1 In a ground specimen the spaces formerly occupied by osteocytes and their processes are clearly seen.
Osteocytes 1 Mature bone cells surrounded by bone matrix. Spider-shaped.
Osteocytes 2 Mature bone cells surrounded by bone matrix. Spider-shaped.
Osteocytes 1 Mature bone cells surrounded by bone matrix. Spider-shaped.
Osteocytes and bone matrix 1 (Self-explanatory)
Osteocytes and bone matrix 1 (Self-explanatory)
Osteon 1 Structural unit of compact bone. Composed of concentric bone lamellae with osteocytes located in between.
Osteon 1 Structural unit of compact bone. Composed of concentric bone lamellae with osteocytes located in between.
Osteons (Haversian systems) 1 Structural units of compact bone. Composed of concentric bone lamellae with osteocytes located in between.
Osteons (Haversian systems) 1 Structural units of compact bone. Composed of concentric bone lamellae with osteocytes located in between.
Outer dental epithelium 1 Part of the enamel organ of the developing tooth. Enamel itself is made by the inner dental epithelium.
Outer dental epithelium 1 Part of the enamel organ of the developing tooth. Enamel itself is made by the inner dental epithelium.
Outer doublet microtubules 1 These along with dynein and other motor proteins comprise the engines of cilia.
Outer hair cell bodies 1 The cell bodies of sensory cells in the cochlea.
Outer hair cell nucleus 1 The nucleus of the sensory cells in the cochlea.
Outer hair cells 1 There are three rows with a total of 20,000 cells in each ear. These cells have an elaborate subsurface cisternal system. They may be able to change their length.
Outer limiting membrane 1 This is not a real membrane. Instead it is formed by the junctional complexes between photoreceptor cells and the glial cells of the retina. It looks like a membrane in LM, however.
Outer mitochondrial membrane 1 The outer mitochondrial membrane provides a permeability barrier for large (e.g. protein) molecules, but not for small molecules. Cytochrome c is trapped between the inner- and outer-membranes of the mitochondrion.
Outer pillar cell 1 A supporting cell in the Organ of Corti.
Outer plexiform layer 2 Contains the synaptic contacts between the rods and cones and the bipolar cells in the retina.
Outer sulcal cells 2 These are supporting cells in the cochlea.
Ovarian (germinal) epithelium 1 The cuboidal epithelium covering the ovum. Misnamed germinal because it was once thought that oocytes developed from it.
Ovarian artery (c.s.) 2 (Self-explanatory)
Ovarian artery (cross sections) 1 (Self-explanatory)
Ovarian cortex 1 The ovary can be roughly divided into a cortex and a medulla. The developing follicles are located in the cortex.
Ovarian stroma 1 The connective tissue of the ovary.
Ovarian stromal cells 1 The connective tissue of the ovary.
Ovary 1 Houses the developing follicles and produces oocytes and hormones.
Ovary 2 Houses the developing follicles and produces oocytes and hormones.

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