What's the difference between perforation and pit?

Perforation


Definition:

  • (n.) The act of perforating, or of boring or piercing through.
  • (n.) A hole made by boring or piercing; an aperture.

Example Sentences:

  • (1) report the complications registered, in particular: lead's displacing 6.2%, run away 0.7%, marked hyperthermya 0.0%, haemorrage 0.4%, wound dehiscence 0.3%, asectic necrosis by decubitus 5%, septic necrosis 0.3%, perforation of the heart 0.2%, pulmonary embolism 0.1%.
  • (2) Pitlike surface structures seen in negatively stained whole cells and thin sections were correlated with periodically spaced perforations of the rigid sacculus.
  • (3) Compliance during dehydration was 7.6 and 12.5% change in IFV per millimeter Hg fall in IFP (micropipettes) in skin and muscle, respectively, whereas compliance in subcutis based on perforated capsule pressure was 2.0% change in IFV per millimeter Hg.
  • (4) The perforant pathway and fimbria fornix were transected to label afferent fibers to NPY-positive cells.
  • (5) As to complications they recorded in one case mucosal bleeding after gastrofiberoptic polypectomy and in one case a covered perforation of the sigmoid at the site of colonoscopic polypectomy.
  • (6) By way of major complications, merely one perforation occurred.
  • (7) Autopsy data of all patients who received EVS and who died (32 patients, 100%) during this period were available to confirm the diagnosis of perforation.
  • (8) The results of a prospective inquiry into the aspirin taking habits of a consecutive series of 118 patients admitted to a large general hospital with acute perforation of peptic ulcer are presented.
  • (9) No perforations, stenoses or thermic lesions after wound healing were observed.
  • (10) Other serious complications were reservoir perforation during catheterisation in 3 and development of stones in the reservoir in 2 patients.
  • (11) Major reported complications include hemorrhage, perforation, biliary and pancreatic obstruction, and inflammation with intestinal obstruction.
  • (12) A retrospective study was conducted into 136 patients who had received surgical treatment for perforated gastroduodenal ulcers, with the view to establishing postoperative lethality and morbidity (comparing simple suturing with definitive ulcer surgery).
  • (13) Three cases of gastroduodenal perforation and one case of ulceration and extreme thinning of the gastric wall occurred in preterm babies treated with dexamethasone for bronchopulmonary dysplasia.
  • (14) The energy required for perforation from the external surface to the anterior chamber was the same as the energy required for ab interno perforation.
  • (15) Cholecystokinin (CCK) as the sulfated (CCK-8S) and unsulfated (CCK-8U) octapeptide sequences, and CR 1409 were administered intraventricularly while the action potential (EAP) in the granular cell layer of the hippocampal dentate gyrus evoked by perforant path stimulation was recorded.
  • (16) At first the prognosis of perforating keratoplasty improved because of better surgical techniques, so that the number of indications increased.
  • (17) a) To determine the frequency of perforations in latex surgical gloves before, during, and after surgical and dental procedures; b) to evaluate the topographical distribution of perforations in latex surgical gloves after surgical and dental procedures; and c) to validate methods of testing for latex surgical glove patency.
  • (18) Perforations of the left atrial or ventricular wall and extravasations of contrast medium during transseptal left heart catheterisation or angiocardiography can be eliminated by replacing the normally used transseptal catheters by Pigtail-catheters.
  • (19) In the cis-trans axis of the Golgi apparatus the following compartments were observed: (a) On the cis face there was a continuous osmiophilic tubular network referred to as the cis element; (b) a cis compartment composed of 3 or 4 NADPase-positive saccules perforated with pores in register forming wells that contained small vesicles; (c) a trans compartment composed of 1 or 2 TPPAse-positive elements underlying the NADPase ones, followed by 1 or 2 CMPase-positive elements that showed a flattened saccular part continuous with a network of anastomotic tubules.
  • (20) Dairy pipeline cleaners were the single most common causative substance, injuring ten toddlers (mean age 1.6 years), perforating the esophagus in two.

Pit


Definition:

  • (n.) A large cavity or hole in the ground, either natural or artificial; a cavity in the surface of a body; an indentation
  • (n.) The shaft of a coal mine; a coal pit.
  • (n.) A large hole in the ground from which material is dug or quarried; as, a stone pit; a gravel pit; or in which material is made by burning; as, a lime pit; a charcoal pit.
  • (n.) A vat sunk in the ground; as, a tan pit.
  • (n.) Any abyss; especially, the grave, or hades.
  • (n.) A covered deep hole for entrapping wild beasts; a pitfall; hence, a trap; a snare. Also used figuratively.
  • (n.) A depression or hollow in the surface of the human body
  • (n.) The hollow place under the shoulder or arm; the axilla, or armpit.
  • (n.) See Pit of the stomach (below).
  • (n.) The indentation or mark left by a pustule, as in smallpox.
  • (n.) Formerly, that part of a theater, on the floor of the house, below the level of the stage and behind the orchestra; now, in England, commonly the part behind the stalls; in the United States, the parquet; also, the occupants of such a part of a theater.
  • (n.) An inclosed area into which gamecocks, dogs, and other animals are brought to fight, or where dogs are trained to kill rats.
  • (n.) The endocarp of a drupe, and its contained seed or seeds; a stone; as, a peach pit; a cherry pit, etc.
  • (n.) A depression or thin spot in the wall of a duct.
  • (v. t.) To place or put into a pit or hole.
  • (v. t.) To mark with little hollows, as by various pustules; as, a face pitted by smallpox.
  • (v. t.) To introduce as an antagonist; to set forward for or in a contest; as, to pit one dog against another.

Example Sentences:

  • (1) When compared with nonspecialized regions of the cell membranes, these contact sites were characterized by a decreased intercellular distance, subplasmalemmal densities and coated pits.
  • (2) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
  • (3) Both types of oral cleft, cleft palate (CP) and cleft lip with or without CP (CLP), segregate in these families together with lower lip pits or fistulae in an autosomal dominant mode with high penetrance estimated to be K = .89 and .99 by different methods.
  • (4) The potential use of ancrod, a purified isolate from the venom of the Malaysian pit viper, Agkistrodon rhodostoma, in decreasing the frequency of cyclic flow variations in severely stenosed canine coronary arteries and causing thrombolysis of an acute coronary thrombus induced by a copper coil was evaluated.
  • (5) On land, the pits' stagnant pools of water become breeding grounds for dengue fever and malaria.
  • (6) Demonstration of low levels of Pit-1 expression in Ames dwarf (df) mice implies that both Pit-1 and df expression may be required for pituitary differentiation.
  • (7) At 4 degrees C or after fixation, anti-renal tubular brush border vesicle (BBV) IgG bound diffusely to the surface of GEC and to coated pits.
  • (8) A cell with a large Golgi apparatus and associated cytoplasmic granules resembles the pit cell described in the liver of a few other vertebrates.
  • (9) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
  • (10) This brings lads like 12-year-old Matthew Mason down from the magnificent studio his father Mark, from a coal-mining town ravaged by pit closures, lovingly built him in the back garden at Gants Hill, north-east London.
  • (11) Stonehenge stood at the heart of a sprawling landscape of chapels, burial mounds, massive pits and ritual shrines, according to an unprecedented survey of the ancient grounds.
  • (12) Freeze fracture analysis confirmed the integrity of the tight junctions as well as increased numbers of vesicles or pits along the lateral cell membrane, indicating increased endocytotic activity.
  • (13) Likewise, the cost of emptying these pits can be high.
  • (14) Bifid uvula, preauricular pits, and abnormal palmar creases were also slightly more common in the patients, but the differences were not statistically significant.
  • (15) Hypertrophic fibrous astrocytes were common in chronic active lesions, were capable of myelin degradation and on occasion, contained myelin debris attached to clathrin-coated pits.
  • (16) A mother and daughter both presented at age 5 years with the triad of right-sided congenital cholesteatoma, right preauricular pits, and bilateral sensorineural hearing loss.
  • (17) In addition, the perfusion method in this experiment suggested the possibility of distinguishing pinocytotic vesicles from pits of cell membranes.
  • (18) Performance pay pitting teachers against each other just does not work - we are not in favour of that,” Merlino said.
  • (19) Both larval stages had an inner circle of 6 labial papillae, an outer circle of 6 labial papillae and 4 somatic papillae, and lateral amphidial pits.
  • (20) The country’s other attractions include a burning pit at “the door to hell” in the Darvaza crater, and rarely seen stretches of the silk road, the region’s ancient trade route.