What's the difference between dilate and distend?

Dilate


Definition:

  • (v. t.) To expand; to distend; to enlarge or extend in all directions; to swell; -- opposed to contract; as, the air dilates the lungs; air is dilated by increase of heat.
  • (v. t.) To enlarge upon; to relate at large; to tell copiously or diffusely.
  • (v. i.) To grow wide; to expand; to swell or extend in all directions.
  • (v. i.) To speak largely and copiously; to dwell in narration; to enlarge; -- with on or upon.
  • (a.) Extensive; expanded.

Example Sentences:

  • (1) Intestinal dilatation seemed in all cases a response to elevated CO2 only.
  • (2) In the absence of atrial dilatation there was minimal stimulus for ANF secretion.
  • (3) Evaluation revealed tricuspid insufficiency, a massively dilated right internal jugular vein, and obstruction of the left internal jugular vein.
  • (4) Midtrimester abortion by the dilatation and evacuation (D&E) method has generated controversy among health care providers; many authorities insist that this procedure should be performed only by a small group of experts.
  • (5) DPI 201-106 (DPI) as a positive inotropic drug might be useful in treating dilated cardiomyopathy (DCM).
  • (6) In one of the cirrhotic patients, postmortem correlation of sonographic, angiographic, and pathological findings showed that the dilated vessels seen on sonography were cystic veins draining normally into the portal vein rather than portosystemic anastomoses.
  • (7) Combined SEM and TEM examination of the endothelium of compressed segments revealed "craters" and "balloons", blebs and vacuoles, swollen mitochondria, dilated granular endoplasmic reticulum, and subendothelial edema.
  • (8) Light microscopy of both apneics and snorers revealed mucous gland hypertrophy with ductal dilation and focal squamous metaplasia, disruption of muscle bundles by infiltrating mucous glands, focal atrophy of muscle fibers, and extensive edema of the lamina propria with vascular dilation.
  • (9) Myogenic constrictions and dilations was observed when IP was increased (greater than 60 cmH2O) and decreased (less than 60 cmH2O), respectively.
  • (10) Four hundred and twenty-five lesions were dilated in 370 patients.
  • (11) Most often, constrictor fibres follow the course of the pterygo-palatine nerve, when dilator fibres follow the infraorbital nerve.
  • (12) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
  • (13) Further management of the congenital cases was based on the experience that children outgrow this disorder; periodic dilatation may augment the natural process.
  • (14) The average size of stenosis after dilation was 32%.
  • (15) Computer-aided axial tomography revealed progressive development of atrophy of the left hemisphere and compensatory dilatation of the ventricles.
  • (16) The distinction between idiopathic dilated cardiomyopathy and myocarditis is controversial, both clinically and pathologically.
  • (17) In the remaining 60 patients (35 with atherosclerotic stenosis and 25 with fibromuscular dysplasia), both mean systolic and diastolic pressure fell immediately after percutaneous transluminal dilatation and remained significantly lower for a period of up to five years.
  • (18) The time for cervical dilatation from 7 to 10 cm and duration of the second stage of labor did not influence maternal morbidity or fetal outcome, regardless of the method of anesthesia.
  • (19) Histamine elicited arteriolar dilation which was blocked by metiamide suggesting the presence of H2 receptors.
  • (20) In 1 patient there was concomitant aneurysmal dilatation of the brachiocephalic trunk.

Distend


Definition:

  • (v. t.) To extend in some one direction; to lengthen out; to stretch.
  • (v. t.) To stretch out or extend in all directions; to dilate; to enlarge, as by elasticity of parts; to inflate so as to produce tension; to cause to swell; as, to distend a bladder, the stomach, etc.
  • (v. i.) To become expanded or inflated; to swell.

Example Sentences:

  • (1) The combination of an over-distended uterus caused by a multiple-fetus pregnancy with therapeutic bed-rest may cause mechanical ileus.
  • (2) The epididymis appeared distended but without any visible sperms.
  • (3) In a noncontracting in vitro preparation of combined right and left atria we demonstrated by electron microscopy that, at 37 degrees C, transition from zero pressure to a physiological distending pressure of 5.1 mm Hg rapidly rendered atrial endocardial endothelium permeable to the macromolecular probes horseradish peroxidase (HRP; M(r), approximately 40,000) and wheat germ agglutinin-HRP (M(r), approximately 70,000); each probe was introduced at the atrial cavitary endocardial surface.
  • (4) However, separation of the capsule from the bony glenoid can be detected if a joint effusion is present to adequately distend the joint.
  • (5) The surgical treatment was ligation of the distended vein immediately distal to the fistula in the hand, and fistula function was preserved.
  • (6) Eight 'normal' gallbladders and six distended gallbladders from patients with carcinomatous obstruction of the common bile duct were examined.
  • (7) Immediately after the perforation, the patient entered into vascular collapse and respiratory distress, with a distended abdomen.
  • (8) As the mosquito ingests blood, sensory information from the distending abdomen reaches the mid gut via the nerve cord, brain and stomatogastric system.
  • (9) Chains of low-amplitude contractions (repeated small deviations from base line) were detected before parturition was induced, and these were more common at distended parts of the uterus.
  • (10) The rate of acquisition increased as a function of the distending pressure.
  • (11) Contracted and distended bladders incubated in 0.01 M sodium bicarbonate were compared to identical preparations experimentally incubated in 5 mM thioglycolic acid.
  • (12) Amplitude, duration and magnitude (as measured by planimetry) of anal relaxation elicited by rectal distensions were related to rectal distending volume (P less than 0.001).
  • (13) The periosteal fibroblasts of OI35 contained grossly distended rough endoplasmic reticulum consistent with the 53% reduction in collagen secretion by cultured dermal fibroblasts.
  • (14) Many virus particles were observed within distended cisternae of the endoplasmic reticulum 22 h p.i., and matrices of viroplasm were found close to developing virus particles.
  • (15) In orbital surgery, distended and thinned extraocular muscles were precisely localized and preserved anatomically and functionally.
  • (16) An enlarged cervical lymph node contained many abnormal plasma cells, which were distended with immunoglobulin; this material appeared to be released into lymph spaces when the cells burst.
  • (17) Among 52 unit discharges observed, 36 (69.2%) showed that electro-acupuncturing "Zusanli" point abolished the inhibitory reaction induced by distending stomach.
  • (18) (n = 18) in the presence of a distended bladder and 7.0 cm.
  • (19) The pathogenesis involves the release of kinins, the triggering of neurogen reflex mechanisms by distending the jejunum, the massive flow of fluid in jejunal lumen, the loss of the reservoir function of the stomach, and, possibly, the pathologic release of gastrointestinal hormones.
  • (20) A controlled study is in progress to delineate the optimum distending airway pressures at specific inspired oxygen concentrations in order to reduce the incidence of alveolar rupture to a minimum.