List of anatomical isthmi
Encyclopedia
In anatomy, isthmus refers to a constriction between organs. This is a list of anatomical isthmi:
- "Isthmus" the mesencephalon(midbrain)-rhombencephalon(hindbrain) boundary.
- Isthmus faucium (ThroatThroatIn vertebrate anatomy, the throat is the anterior part of the neck, in front of the vertebral column. It consists of the pharynx and larynx...
) - Isthmus glandularis or Thyroid isthmusThyroid isthmusThe thyroid isthmus connects together the lower thirds of the lobes; it measures about 1.25 cm. in breadth, and the same in depth, and usually covers the second and third rings of the trachea.Its situation and size present, however, many variations....
- Isthmus prostatae (ProstateProstateThe prostate is a compound tubuloalveolar exocrine gland of the male reproductive system in most mammals....
) - Isthmus tubae auditivae (Eustachian tubeEustachian tubeThe Eustachian tube is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm long. It is named after the sixteenth-century anatomist Bartolomeo Eustachi...
) - Isthmus tubae uterinaeIsthmus of uterine tubeThe visible medial third of the uterine tube is the isthmus tubae uterinae. It is medidally bordered by the intramural portion of the tube that connects to the endometrial cavity and laterally by the ampullary part of the tube....
(Fallopian tubeFallopian tubeThe Fallopian tubes, also known as oviducts, uterine tubes, and salpinges are two very fine tubes lined with ciliated epithelia, leading from the ovaries of female mammals into the uterus, via the utero-tubal junction...
) - Uterine isthmusUterine isthmusThe uterine isthmus is the inferior-posterior part of uterus, on its cervical end — here the uterine muscle is narrower and thinner. It connects superiorly-anteriorly to the complementary parts of the uterus: the body and the fundus....
- Isthmus urethrae (UrethraUrethraIn anatomy, the urethra is a tube that connects the urinary bladder to the genitals for the removal of fluids out of the body. In males, the urethra travels through the penis, and carries semen as well as urine...
) - Isthmus of the OviductOviductIn non-mammalian vertebrates, the passageway from the ovaries to the outside of the body is known as the oviduct. The eggs travel along the oviduct. These eggs will either be fertilized by sperm to become a zygote, or will degenerate in the body...
- Isthmus of the RhombencephalonRhombencephalonThe rhombencephalon is a developmental categorization of portions of the central nervous system in vertebrates.The rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres...
- Isthmus of the Corpus CallosumCorpus callosumThe corpus callosum , also known as the colossal commissure, is a wide, flat bundle of neural fibers beneath the cortex in the eutherian brain at the longitudinal fissure. It connects the left and right cerebral hemispheres and facilitates interhemispheric communication...
- Isthmus of the Cingulate GyrusIsthmus of cingulate gyrusThe cingulate gyrus commences below the rostrum of the corpus callosum, curves around in front of the genu, extends along the upper surface of the body, and finally turns downward behind the splenium, where it is connected by a narrow isthmus with the hippocampal gyrus.-External links:*...
- Cavo-tricuspid isthmusCavo-tricuspid isthmusThe cavo-tricuspid isthmus is a body of fibrous tissue in the lower right atrium between the inferior vena cava, and the tricuspid valve. It is a target for ablation for treating atrial flutter....
of the right atriumRight atriumThe right atrium is one of four chambers in the hearts of mammals and archosaurs...
of the heart, a body of fibrous tissue in the lower atrium between the inferior vena cava, and the tricuspid valve.