What's the difference between morphology and topography?

Morphology


Definition:

  • (n.) That branch of biology which deals with the structure of animals and plants, treating of the forms of organs and describing their varieties, homologies, and metamorphoses. See Tectology, and Promorphology.

Example Sentences:

  • (1) Morphological alterations in the lungs of pheasants after prolonged high-dosage administration of bleomycin sulfate were studied by light and electron microscopy.
  • (2) This study was designed to investigate the localization and cyclic regulation of the mRNA for these two IGFBPs in the porcine ovary, RNA was extracted from whole ovaries morphologically classified as immature, preovulatory, and luteal.
  • (3) The present results provide no evidence for a clear morphological substrate for electrotonic transmission in the somatic efferent portion of the primate oculomotor nucleus.
  • (4) We have previously shown that intratracheally instilled silica (quartz) produces both morphologic evidence of emphysema and small-airway changes, and functional evidence of airflow obstruction.
  • (5) Recognition of the distinctive morphology of MH and the performance of ancillary studies on cytologic preparations should facilitate the rapid diagnosis and early treatment of this aggressive disease.
  • (6) Many problems at the macroscopic level require clarification of how an animal uses a compartment of suite of muscles and whether morphological differences reflect functional ones.
  • (7) The leukemic T-cells in two patients with chronic lymphocytic leukemia (CLL) had specific features of large granular lymphocytes (LGL), and those in two patients with acute lymphocytic leukemia (ALL) had L2 morphologic characteristics.
  • (8) By growing purified human cytotrophoblasts under serum-free conditions and manipulating the culture surface, we were able to disassociate morphologic from biochemical differentiation.
  • (9) [125I]AaIT was shown to cross the midgut of Sarcophaga through a morphologically distinct segment of the midgut previously shown to be permeable to a cytotoxic, positively charged polypeptide of similar molecular weight.
  • (10) Two lectins, wheat germ agglutinin (WGA) and peanut agglutinin (PNA), were used to compare domains within the interphotoreceptor matrices (IPM) of the cat and monkey, two species where the morphological relationship between the retinal pigment epithelium (RPE) and photoreceptors is distinctly different.
  • (11) Nonvibrissa sensitive cells had diverse morphologies.
  • (12) Results of detailed studies on tissue reactions to Cysticercus bovis in the heart of cattle, together with a comparison of findings in animals with spontaneous and experimental infection, and an evaluation of tissue reactions in relation to the location, morphology and morphogenesis of C. bovis provided evidence for the fact that in general, the response of the heart to the presence of C. bovis was an inflammatory reaction characterized by the origin of a pseudoepithelial border and a zone of granulation tissue.
  • (13) This study examines the morphology of sporadic congenital microphthalmia in 1-day-old chicks, with particular emphasis on the neural retina.
  • (14) Males were then sacrificed and organ weights, testicular spermatid counts, and cauda epididymal sperm count and sperm morphology were obtained.
  • (15) The results show that OKT4-and OKT8-positive lymphocytic subpopulations have a distinct morphological pattern, although some variations in the ultrastructural details of cells in each subset are evident.
  • (16) The morphology and physiology of the large adapting unit (LAU: Fig.
  • (17) These agents have been well-tolerated and generally produce a high incidence of sustained improvements in neutrophil counts and marrow morphology, although hemoglobin and platelet counts have generally not been altered.
  • (18) Neither light nor electron microscopy revealed significant morphologic alterations in the cochlear elements of the exposed offspring.
  • (19) Unlike unattenuated virus, the Us3::pgC-lacZ recombinant caused little apparent damage to normal hippocampal morphology.
  • (20) This result was predicted from a short-term assay measuring defects in nuclear morphology in mouse colon epithelial cells.

Topography


Definition:

  • (n.) The description of a particular place, town, manor, parish, or tract of land; especially, the exact and scientific delineation and description in minute detail of any place or region.

Example Sentences:

  • (1) The data for the eubacterial ribosomes are in full agreement with the model of the 50S protein topography derived from immunological data.
  • (2) VS had a crude topography, and receptive fields of neurons in VS were relatively large.
  • (3) Among the epileptic patients investigated by the stereotactic E. E. G. (Talairach) whose electrodes were introduced at or around the auditory cortex (Area 41, 42), the topography of the auditory responses by the electrical bipolar stimulation and that of the auditory evoked potential by the bilateral click sound stimulation were studied in relation to the ac--pc line (Talairach).
  • (4) These topographies enabled us to observe serial changes in epileptic discharge dynamically by 1 msec.
  • (5) The topography of the expression on the trophectoderm is striking and novel.
  • (6) Nevertheless, a wide clinical spectrum was found varying from pictures correlating with the topography and extent of the MRI-detected anomaly to conditions indicating wider cerebral involvement.
  • (7) Twenty monoclonal antibodies (MAb) against human growth hormone (hGH) were used to establish the antigenic topography of this protein.
  • (8) To investigate the topography of the clear zone, we performed four- and eight-incision radial keratotomy in eight cadaver eyes.
  • (9) We have mapped cochlear nerve terminations in the cochlear nucleus with DiI and, using three-dimensional reconstructions, have demonstrated the topography and geometry of the cochlear input.
  • (10) The classification, when considered together with improved angiographic technique and microsurgery, allows exact preoperative and peroperative definition of topography which in turn enables the avoidance of injury to functionally important typical and atypical central branches of the posterior cerebral artery.
  • (11) This study showed that digital computerised tomography indicates the extent and topography of the necrosis and provides true histo-radiological sections.
  • (12) Fibreoptic bronchoscopy enabled the topography to be established more precisely including the degree of compression (in 14 cases) and showed evidence of associated tracheomalacia in 7 cases.
  • (13) Comparison of the predicted amino acid sequences from HKB3 and MEB3 reveals a high degree of sequence homology (71%) and conservation of the overall topography of the transmembrane domain.
  • (14) The proximal topography of the left common carotid artery ostium is a useful sign in the diagnosis of this kind of abnormality.
  • (15) At the same time the data are obtained on variations in topography of the chorda tympani at various form of the intratemporal fossa.
  • (16) Afferents to the nucleus accumbens have been studied with the retrograde transport of unconjugated wheatgerm agglutinin as detected by immunohistochemistry using the peroxidase-antiperoxidase method, in order to define precisely afferent topography from the cortex, thalamus, midbrain and amygdala.
  • (17) The topographies of key-pressing and magazine behavior differed; the food tray was not illuminated.
  • (18) The particularities of the topography and the histological structure of the wall are presented and the diagnostical delimination compared with cysts of other pathogenesis are discussed.
  • (19) Our computer-based corneal topography analysis system was used to study the keratoscope photographs (keratograms) from two patients with classic pellucid marginal degeneration and a third patient with no inferior corneal thinning, whose keratoscope mire pattern was suggestive of the condition.
  • (20) These differ in RNA contents, in the distribution pattern of RNA in the cytoplasm, in the intensity of the Feulgen reaction and the topography of DNA in the nucleus, and in the contents and distribution of both the nucleic acids in the kinetoplast.