Medical dictionary
Medical terminology normalized via MeSH, ICD-11, SNOMED CT.
62,341 terms indexed
The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus.
A SQUAMOUS CELL CARCINOMA or ADENOCARCINOMA the which originates from the squamous EPITHELIUM of the ANAL CANAL , but may also arise from the transitional zone between the columnar epithelium of the rectum and the squamous epithelium of the anal canal (cloacogenic or transitional carcinoma) and is often associated with human papillomavirus infection. May be associated with a rearrangement in chromosome 3 and in the long arm of chromosome 11. OMIM: 105580
Tumors or cancer of the anal gland.
A pair of anal glands or sacs, located on either side of the ANUS, that produce and store a dark, foul-smelling fluid in carnivorous animals such as MEPHITIDAE and DOGS. The expelled fluid is used as a defensive repellent (in skunks) or a material to mark territory (in dogs).
Methods of PAIN relief that may be used with or in place of ANALGESICS.
The relief of pain without loss of consciousness through the introduction of an analgesic agent into the epidural space of the vertebral canal. It is differentiated from ANESTHESIA, EPIDURAL which refers to the state of insensitivity to sensation.
The elimination of PAIN, without the loss of CONSCIOUSNESS, during OBSTETRIC LABOR; OBSTETRIC DELIVERY; or the POSTPARTUM PERIOD, usually through the administration of ANALGESICS.
Relief of PAIN, without loss of CONSCIOUSNESS, through ANALGESIC AGENTS administered by the patients. It has been used successfully to control POSTOPERATIVE PAIN, during OBSTETRIC LABOR, after BURNS, and in TERMINAL CARE. The choice of agent, dose, and lockout interval greatly influence effectiveness. The potential for overdose can be minimized by combining small bolus doses with a mandatory interval between successive doses (lockout interval).
Compounds capable of relieving pain without the loss of CONSCIOUSNESS.
A subclass of analgesic agents that typically do not bind to OPIOID RECEPTORS and are not addictive. Many non-narcotic analgesics are offered as NONPRESCRIPTION DRUGS.
Compounds with activity like OPIATE ALKALOIDS, acting at OPIOID RECEPTORS. Properties include induction of ANALGESIA or NARCOSIS.
Pain-alleviating drugs characterized by rapid action time.
The process of converting analog data to discrete, digital form.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
Use of various chemical separation and extraction methods, such as SOLID PHASE EXTRACTION; CHROMATOGRAPHY; and SUPERCRITICAL FLUID EXTRACTION; to prepare samples for analytical measurement of components.
A plant genus of the family BROMELIACEAE known for the edible fruit that is the source of BROMELAINS.
RefSeq NM_008569
RefSeq NM_175300
The phase of cell nucleus division following METAPHASE, in which the CHROMATIDS separate and migrate to opposite poles of the spindle.
An E3 ubiquitin ligase primarily involved in regulation of the metaphase-to-anaphase transition during MITOSIS through ubiquitination of specific CELL CYCLE PROTEINS. Enzyme activity is tightly regulated through subunits and cofactors, which modulate activation, inhibition, and substrate specificity. The anaphase-promoting complex, or APC-C, is also involved in tissue differentiation in the PLACENTA, CRYSTALLINE LENS, and SKELETAL MUSCLE, and in regulation of postmitotic NEURONAL PLASTICITY and excitability.
RefSeq NM_106524
Serum peptides derived from certain cleaved COMPLEMENT PROTEINS during COMPLEMENT ACTIVATION. They induce smooth MUSCLE CONTRACTION; mast cell HISTAMINE RELEASE; PLATELET AGGREGATION; and act as mediators of the local inflammatory process. The order of anaphylatoxin activity from the strongest to the weakest is C5a, C3a, C4a, and C5a des-arginine.
An acute hypersensitivity reaction due to exposure to a previously encountered ANTIGEN. The reaction may include rapidly progressing URTICARIA, respiratory distress, vascular collapse, systemic SHOCK, and death.
Loss of structural differentiation and useful function of neoplastic cells.
A genus of gram-negative bacteria whose organisms are obligate parasites of vertebrates. Species are transmitted by arthropod vectors with the host range limited to ruminants. Anaplasma marginale is the most pathogenic species and is the causative agent of severe bovine anaplasmosis.
A species of gram-negative bacteria causing mild ANAPLASMOSIS in CATTLE. It also can infect SHEEP and GOATS. It is transmitted by TICKS.
A species of gram-negative bacteria and causative agent of severe bovine ANAPLASMOSIS. It is the most pathogenic of the ANAPLASMA species.
A species of gram-negative bacteria producing mild to severe ANAPLASMOSIS in SHEEP and GOATS, and mild or inapparent infections in DEER and CATTLE.
A species of gram-negative bacteria in the genus ANAPLASMA, family ANAPLASMATACEAE, formerly called Ehrlichia phagocytophila or Ehrlichia equi. This organism is tick-borne (IXODES) and causes disease in horses and sheep. In humans, it causes human granulocytic EHRLICHIOSIS.
A family of bacteria in the order RICKETTSIALES which inhabit RED BLOOD CELLS and other types of cells, causing disease in both animals and humans.
Infections with bacteria of the family ANAPLASMATACEAE.
A disease usually in cattle caused by parasitization of the red blood cells by bacteria of the genus ANAPLASMA.
A Y-shaped surgical anastomosis of any part of the digestive system which includes the small intestine as the eventual drainage site.
Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.
Breakdown of the connection and subsequent leakage of effluent (fluids, secretions, air) from a SURGICAL ANASTOMOSIS of the digestive, respiratory, genitourinary, and cardiovascular systems. Most common leakages are from the breakdown of suture lines in gastrointestinal or bowel anastomosis.
Reference points located by visual inspection, palpation, or computer assistance, that are useful in localizing structures on or within the human body.
Peculiarities associated with the internal structure, form, topology, or architecture of organisms that distinguishes them from others of the same species or group.
Those persons skilled in anatomy or dissection.
A branch of biology dealing with the structure of organisms.
The study of the structures of organisms for applications in art: drawing, painting, sculpture, illustration, etc.
The comparative study of animal structure with regard to homologous organs or parts. (Stedman, 25th ed)
Descriptive anatomy based on three-dimensional imaging (IMAGING, THREE-DIMENSIONAL) of the body, organs, and structures using a series of computer multiplane sections, displayed by transverse, coronal, and sagittal analyses. It is essential to accurate interpretation by the radiologist of such techniques as ultrasonic diagnosis, MAGNETIC RESONANCE IMAGING, and computed tomography (TOMOGRAPHY, X-RAY COMPUTED). (From Lane and Sharfaei, Modern Sectional Anatomy, 1992, Preface)
The anatomical study of specific regions or parts of organisms, emphasizing the relationship between the various structures (e.g. muscles, nerves, skeletal, cardiovascular, etc.).
The study of the anatomical structures of animals.