| end-brush | An anomalous term that refers to the terminal arborization of an axon. Synonym: end-brush. Origin: G. Telos, end, + dendron, tree (05 Mar 2000) |
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| end-cutting bur | A bur with blades only on its end. (05 Mar 2000) |
| end-diastolic | 1. Occurring at the end of diastole, immediately before the next systole, as in end-diastolic pressure. 2. Interrupting the final moments of diastole, barely premature, as in end-diastolic extrasystole. (05 Mar 2000) |
| end-diastolic volume | The amount of blood in the ventricle immediately before a cardiac contraction begins; a measurement of cardiac filling between beats, related to diastolic function. (05 Mar 2000) |
| end-feet | The somewhat enlarged, often club-shaped endings by which axons make synaptic contacts with other nerve cells or with effector cells (muscle or gland cells). As isolated, by homogenizing brain or spinal cord, they contain acetylcholine and the related enzymes. Terminals contain neurotransmitters of various kinds, sometimes more than one. These can be demonstrated by chemical analysis and immunocytochemical methods. See: synapse. Synonym: axonal terminal boutons, end-feet, neuropodia, pieds terminaux, synaptic boutons, synaptic endings, synaptic terminals, terminal boutons, bouton terminaux. (05 Mar 2000) |
| end-filling | The use of DNA polymerase to create a blunt end (both strands are the same length and end together) on double-stranded DNA that has a staggered end (one strand is longer than the other so there is a single-stranded section at the end of the molecule). (09 Oct 1997) |
| end-on mattress suture | A vertical mattress suture used for exact skin approximation. (05 Mar 2000) |
| end-piece | The terminal part of the tail of a spermatozoon consisting of the axoneme and the flagellar membrane. (05 Mar 2000) |
| end-point measurement | Analytical measurement at the end of a chemical reaction, as opposed to making the measurement while the reaction proceeds. (05 Mar 2000) |
| end-point nystagmus | A jerky, physiologic nystagmus occurring in a normal individual when attempts are made to fixate a point at the limits of the field of fixation. Synonym: deviational nystagmus. (05 Mar 2000) |
| end-stage renal disease | <nephrology> A patient with inadequate renal function to support life. Individuals with end-stage disease must rely in kidney dialysis or peritoneal dialysis to survive. End-stage renal disease may be caused by a number of problems including diabetes, sickle cell disease, hypertension and congenital renal disease (polycystic kidney disease). (27 Sep 1997) |
| end-systolic volume | The amount of blood in the ventricle at the end of the cardiac ejection period and immediately preceding the beginning of ventricular relaxation; a measurement of the adequacy of cardiac emptying, related to systolic function. (05 Mar 2000) |
| end-tidal | at the end of a normal expiration. (05 Mar 2000) |
| end-tidal sample | A sample of the last gas expired in a normal expiration, ideally consisting only of alveolar gas. (05 Mar 2000) |
| end-to-end bite | An occlusion in which the anterior teeth of both jaws meet along their incisal edges when the teeth are in centric occlusion. Synonym: edge-to-edge bite, end-to-end bite, end-to-end occlusion. (05 Mar 2000) |
| acromial end of clavicle | The flattened lateral end of the clavicle that articulates with the acromion and is anchored to the coracoid process by the conoid and trapezoid ligaments. Synonym: extremitas acromialis claviculae, acromial end of clavicle. (05 Mar 2000) |
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| blunt-end | Refers to double-stranded DNA in which there are no unpaired bases at the end. (05 Mar 2000) |
| blunt-end DNA | <molecular biology> A fragment of a DNA molecule in which the ends of both strands are even with each other rather than one strand being longer than the other. (09 Oct 1997) |
| blunt-end ligation | A lab technique to join together two pieces of blunt-end DNA, such as an insert into a cloning vector, which requires the enzyme ligase because there are no single-stranded overhanging ends for the attachment to form more spontaneously, by itself. (09 Oct 1997) |
| by-end | Private end or interest; secret purpose; selfish advantage. Alternative forms: bye-end. (20 Mar 1998) |
| capped 5'-end | A methylated (has a -CH3 attached) guanosine nucleotide attached to the 5'-end (the beginning) of an eukaryotic mRNA, thought to give the mRNA stability. (09 Oct 1997) |
| glycosylation end products, advanced | Products derived from the nonenzymatic reaction of glucose and proteins in vivo that exhibit a yellow-brown pigmentation and an ability to participate in protein-protein cross-linking. These substances are involved in biological processes relating to protein turnover and it is believed that their excessive accumulation contributes to the chronic complications of diabetes mellitus. (12 Dec 1998) |
| root end cyst | An inflammatory odontogenic cyst derived histogenetically from Malassez' epithelial rests surrounding the root apex of a nonvital tooth. Synonym: periapical cyst, radicular cyst, root end cyst. (05 Mar 2000) |
| root end granuloma | Chronic nonsuppurative inflammation of periapical tissue resulting from irritation following pulp disease or endodontic treatment. (12 Dec 1998) |
| miniature end plate potential | <physiology> Small fluctuations (typically 0.5 mV) in the resting potential of postsynaptic cells. They are the same shape as, but much smaller than, the end plate potentials caused by stimulation of the presynaptic cell. Miniature end plate potentials are considered as evidence for the quantal release of neurotransmitters at chemical synapses, a single miniature end plate potential resulting from the release of the contents of a single synaptic vesicle. (12 Jan 1998) |
| positive end-expiratory pressure | A technique used in respiratory therapy in which airway pressure greater than atmospheric pressure is achieved at the end of exhalation by introduction of a mechanical impedance to exhalation. (05 Mar 2000) |
| skin test end-point titration | A quantitative form of intradermal testing for the relative allergenicity of a substance. It is used to determine the amount of an allergen that will be tolerated in immunotherapy. (12 Dec 1998) |
| negative end-expiratory pressure | A subatmospheric pressure at the airway at the end of expiration. (05 Mar 2000) |
| sternal end of clavicle | The enlarged medial end of the clavicle that articulates with the manubrium sterni. Synonym: extremitas sternalis claviculae, sternal end of clavicle. (05 Mar 2000) |
| dead-end host | A host from which infectious agents are not transmitted to other susceptible host's. (05 Mar 2000) |