خيارات البحث
النتائج 1 - 10 من 70
Induction and characterization of acrosome reaction in equine spermatozoa.
1987
Varner D.D. | Ward C.R. | Storey B.T. | Kenney R.M.
Scanning electron microscopy of bovine coreneas irradiated with sun lamps and challenge exposed with Moraxella bovis.
1986
Vogelweid C.M. | Miller R.B. | Berg J.N. | Kinden D.A.
Microvascular circulation of the ascending colon in horses.
1989
Snyder J.R. | Tyler W.S. | Pascoe J.R. | Olander H.J. | Bleifer D.R. | Hinds D.M. | Neves J.W.
Microvascular circulation of the ascending colon in healthy horses was studied using microangiography, light microscopy, and scanning electron microscopy. The pelvic flexure with 30 cm of ventral and dorsal colon attached was removed from 14 adult horses immediately after horses were euthanatized. The lumen was flushed with warm water, and this section of the ascending colon was placed in a 37-C bath of isotonic NaCl. In sections from 8 horses, colic vessels were perfused with a radio-opaque medium for microangiography. After angiographic evaluation, tissue sections were prepared for light microscopic observation, using standard histologic methods. In sections from 6 horses, injection replicas were made by perfusing the vessels with 2 types of plastics. The results of microangiography, light microscopy, and scanning electron microscopy of vascular replicas were correlated, providing acomprehensive documentation of the microvasculature of the ascending colon at the pelvic flexure. Arteries branched from mesenteric colic vessels approximately every 2 cm toward the colonic tissue. Immediately after branching, arterial vessels formed an anastomotic plexus, the colonic rete. However, each branch from the colic vessel eventually continued into the colonic tissue. A second set of vessels originated from the colonic rete and supplied the mesenteric lymph nodes. Arterial vessels penetrated the tunica muscularis into the sub-mucosa 3 to 4 cm toward the antimesenteric border forming a submucosal vascular network. From the submucosal arterioles, branching took place at right angles to supply the mucosal capillaries. Capillaries surrounded the colonic glands and anastomosed at the luminal surface, forming a superficial luminal honeycomb-appearing vascular plexus. Venules, sparsely distributed, drained the superficial plexus. Arterial venous anastomoses were not observed within the mucosa.
اظهر المزيد [+] اقل [-]A scanning electron microscopic study on the architecture of lymph vessels and intranodal lymph pathways of lymph nodes in pigs.
1988
Hoshi N. | Hashimoto Y. | Kitagawa H. | Kon Y. | Kudo N.
In vitro characterization of porcine juvenile articular cartilage.
1987
Lamar C.H. | Eller L.L. | Turek J.J.
Morphometric studies of the bovine uterus: microscopic lesions and retrospective reproductive history.
1985
Gonzalez H.E. | Crowell W.A. | Caudle A.B. | Thompson F.N.
Morphologic study of inclusions in tissues from pigs inoculated with cytomegalovirus.
1987
Narita M. | Kawamura H. | Shirai J. | Haritani M.
Studies on the pathogenesis of Salmonella heidelberg infection in weanling pigs.
1985
Reed W.M. | Olander H.J. | Thacker H.L.
Fine structure of Theileria sergenti merozoite in Korean native cattle.
1990
Baek B.K. | Kim B.S. | Lee H.I.
Light microscopic observations on the in vitro effects of praziquantel on Heterophyopsis continua.
1990
Woo H.C. | Suh M.D. | Hong S.J.
