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Cloaca
Cloaca A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. It is the far end of a structure called the hindgut. This structure then divides to form a rectum, a bladder, and genitalia. The presence of a cloaca is normal in many adult animals (birds, reptiles, amphibians, some fish, and even a few mammals). However, the persistence of a persistent cloaca in a person is a birth defect (a congenital malformation).
RELATED TERMS--------------------------------------
Feces
Stool.
Urine
The waste fluid secreted by the kidneys, transported by the ureters, stored in the bladder, and voided through the urethra.
Development
The process of growth and differentiation.
Embryo
The early stages of development before an organism becomes self supporting.
Cloaca
A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. It is the far end of a structure called the hindgut. This structure then divides to form a rectum, a bladder, and genitalia. The presence of a cloaca is normal in many adult animals (birds, reptiles, amphibians, some fish, and even a few mammals). However, the persistence of a persistent cloaca in a person is a birth defect (a congenital malformation).
Rectum
An 8-inch chamber connected to the large intestine that receives solid waste (feces) from the descending colon to be expelled from the body. The rectum connects the colon to the anus. It is the rectum's job to receive stool from the colon, to let the person know that there is stool to be evacuated, and to hold the stool until evacuation happens.
Bladder
A muscular triangular-shaped, hollow organ located in the pelvic cavity and supported by the pelvic floor muscles. The bladder stretches to store urine and contracts to release urine.
Genitalia
The sex organs, internal and external. The word is often used to refer to the external organs only.
Fish
Abbreviation for fluorescence in situ hybridization, a molecular technique used in chromosome studies. FISH employs fluorescent (fluorescein tags) that glow under ultraviolet light to detect the hybridization (the combination) of molecular probes with specific chromosomes and specific chromosome regions. In FISH, the process vividly paints chromosomes or portions of chromosomes with fluorescent molecules.
Congenital
Present at birth.
SIMILAR TERMS--------------------------------------
Cloacal exstrophy
A birth defect involving the pelvic area that is termed a malformation sequence and involves the cloaca.
PREVIOUS AND NEXT TERMS--------------------------------------
Clip
A device used to hold something or things together. A surgical clip may be used to prevent a blood vessel from bleeding into the brain or a clip may be used in a vasectomy to pinch together the sides of the vas deferens.
Clitoral
Pertaining to the clitoris, the small elongated erectile body in the female homologous with the penis in the male.
Clitoral amputation
A surgical procedure in which all or part of the clitoris and sometimes also the labia are removed. Clitoral amputation is a form of female circumcision (female genital mutilation). Also called clitorectomy or clitoridectomy.
Clitorectomy
A surgical procedure in which all or part of the clitoris and sometimes also the labia are removed. Clitorectomy is a form of female circumcision (female genital mutilation). Also called clitoridectomy or clitoral amputation.
CLL
Chronic lymphocytic leukemia.
Cloaca
Cloacal exstrophy
A birth defect involving the pelvic area that is termed a malformation sequence and involves the cloaca.
Clone bank
Synonym for Genomic library.
Clones, recombinant
Clones containing recombinant DNA molecules.
Clonic seizure
A seizure in which there are generalized clonic contractions with the entire body jerking, but without a preceding tonic phase.
Cloning, cell
The process of producing a group of cells (clones), all genetically identical, from a single ancestor.
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