(n.) A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; -- also called marsupium.
(n.) The pubic bone.
(n.) Any species of bivalve mollusks of the genus Pecten, and numerous allied genera (family Pectinidae); a scallop. See Scallop.
(n.) The comb of a scorpion. See Comb, 4 (b).
Example Sentences:
(1) Amino acid analyses have been made of the insoluble protein, soluble peptide, and free amino acid fractions isolated from a series of fossil pecten shells of ages from the Pleistocene through the Jurassic.
(2) By using these proteins from the scallop, Pecten maximus, the existence of two distinct tryptophan-containing domains was established, which respond independently to ATP and Ca2+-specific binding.
(3) We investigated the temperature dependence of several functions of octopine dehydrogenase, a monomeric enzyme extracted from the shell fish Pecten maximus L. We found that six enzymatic functions are temperature independent or change only negligibly with temperatue.
(4) Similar localization and ultrastructure of avian pecten oculi and lacertilian conus papillaris suggest homology of these structures.
(5) There were no staining differences between the capillaries of the different regions of the pecten.
(6) The morphology of the pecten of the red-tailed hawk is indicative of a heavy involvement in the transport of materials to the avascular avian retina.
(7) The pecten melanophores of both breeds were dendritic with melanosomes that were larger and fewer in numbers than those pigment cells of the iris and choroid.
(8) The pecten was treated with elastase before incubation in the medium for alkaline phosphatase.
(9) It is considered to be homologous to the pecten oculi of the avian eye; to the falciform process of the teleost eye; to the supraretinal vessels of amphibians and to the intraretinal vessels of the mammalian eye.
(10) Intracellular recordings were obtained from single visual cells of the scallop, Pecten irradians.
(11) Scallops, Pecten maximus, accumulate cadmium naturally in the digestive gland to a level of approximately 100 ppm wet weight.
(12) We suggest that the avian pecten represents a highly amenable structure for studies involving the response(s) by damaged retinae to neural implants.
(13) The peripectinate cells, located on the pecten, are already present at stage 27.
(14) The effect of elastase on alkaline phosphatase activity in the chick pecten capillaries was studied electron histochemically.
(15) The basal lamina like membrane below the endothelial cell of the pecten capillary was digested by collagenases I, II and IV and elastase, and may be a false basal lamina.
(16) The effects of different external ionic conditions and of metabolic inhibitors on the membrane potential of hyperpolarizing photoreceptors in the retina of the scallop Pecten irradians were examined in the presence and absence of light.2.
(17) Fibrils between the basal lamina like membrane of the pecten capillary endothelium and the basal lamina of the cells with pigment granules were digested by collagenases I, II and IV, and elastase.
(18) Doublet microtubules were prepared from sea-urchin (Echinus esculentus and Stronglyocentrotus droebachiensis) and scallop (Pecten maximus) sperm by dialysing flagellar axonemes against 2 mM Tris-0-2 mM EDTA-0-5 mM DTT.
(19) These melanocytes are also felt to be fulfilling a structural role within the pecten.
(20) It has been suggested that the pecten may have a mechanical significance, namely protection of the retina from the excessive movements of the vitreous humour.
Pubic
Definition:
(a.) Of or pertaining to the pubes; in the region of the pubes; as, the pubic bone; the pubic region, or the lower part of the hypogastric region. See Pubes.
(a.) Of or pertaining to the pubis.
Example Sentences:
(1) Rigidly fixing the pubic symphysis stiffened the model and resulted in principal stress patterns that did not reflect trabecular density or orientations as well as those of the deformable pubic symphysis model.
(2) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
(3) By making the incision inside the hairline, there is no increase in the height of the pubic hair.
(4) He had been treated with the Lambotte wire and screw to repair his pubic bone fracture caused by a traffic accident.
(5) Closure of the pubic diastasis is best accomplished by iliac osteotomies.
(6) Perivesical effusions most frequently accompany anterior pelvic arch injuries, i.e., double vertical and Malgaigne fractures and fractures involving, or separation of, the pubic symphysis.
(7) His beard, axillary hair and pubic hair were all normal.
(8) Many clinical types can be distinguished among the post-phlebitis varicose veins : Substitution varicose veins : pre and supra pubic varicose veins that should be left intact-superficial post-phlebitis venous insufficiency which is characterized by a saphenous insufficiency that is not significantly different as a whole in its physiopathology from the essential saphenous insufficiency, and requires therefore the same forms of therapy.
(9) We describe five cases of radiographically proven stress fracture of the pubic ramus in serious runners, three of whom were elite female marathoners.
(10) The occurence of spermarche was significantly associated with maturation of secondary sex characteristics such as the external genitalia and the pubic hair.
(11) The parameters of the trichogram of the pubic hair were studied with a previously described technique.
(12) The results of this study indicate that mid-pubic width is a more useful sexing character than pubic length.
(13) X-ray studies demonstrated fractures of the iliac crest and pubic and ischiadic bone, as well as Looser's zones and demineralization of the skeleton.
(14) In the present work, the dose-response relationship of highly purified porcine relaxin has been examined on broadening of the pubic ligament in mice.
(15) The proportion of subjects with sperm positive urines increased from pubic hair stage (PH) 1 (6%) to PH 5 (92%) with a steep rise between PH 2 and 3.
(16) The results of tests for associations among radiographic findings of the dorsolumbar spine, peripheral joints, tendon insertions and the pubic symphysis are presented.
(17) Following iliac (Salter) osteotomy, the second osteotomy was carried out medial to the obturator foramen in the interval between the symphysis pubis and the pubic tubercle.
(18) Multielemental analysis, using neutron activation, was carried out on the urine, whole blood, pubic hair and toenails of thirty subjects occupationally exposed to hard metal dusts.
(19) Age changes in the pubic symphyses of 142 Cayo Santiago rhesus monkeys (known age, sex and maternal genealogy) are described.
(20) Early treatment with parenteral antibiotics prevented the development of osteomyelitis of the pubic rami in our patient.