bulbus arteriosus


bulbus arteriosus
a chamber in the heart, q.v., of teleosts (see conus arteriosus in elasmobranchs). The bulbus arteriosus is the enlarged base of the ventral aorta and is incapable of muscular pulsation (unlike the conus arteriosus) but it is elastic and can enlarge or shrink in response to change in blood pressure

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • bulbus arteriosus — b. cordis …   Medical dictionary

  • bulbus arteriosus — …   Useful english dictionary

  • bulbus aortae — noun see bulbus arteriosus …   Useful english dictionary

  • Bulbus cordis — Infobox Embryology Name = Bulbus cordis Latin = GraySubject = 135 GrayPage = 513 Caption = Heart showing expansion of the atria. Caption2 = Diagrams to illustrate the transformation of the bulbus cordis. (Keith.) Ao. Truncus arteriosus. Au.… …   Wikipedia

  • bulbus cordis — the foremost of the three parts of the primordial heart of the embryo; called also bulb of heart and b. arteriosus …   Medical dictionary

  • truncus arteriosus — | ̷ ̷ ̷ ̷(ˌ)ärˌtirēˈōsəs noun Etymology: New Latin, arterial trunk : the part of the arterial system within the pericardium connecting the ventricle and ventral aorta in anamniotes and early developmental stages of amniotes; specifically : the… …   Useful english dictionary

  • Truncus arteriosus (embryology) — Infobox Embryology Name = Truncus arteriosus Latin = GraySubject = 135 GrayPage = 514 Caption = Heart of human embryo of about fourteen days. (Truncus arteriosis visible at top.) Caption2 = Diagrams to illustrate the transformation of the bulbus… …   Wikipedia

  • Persistent truncus arteriosus — Classification and external resources Diagrams to illustrate the transformation of the bulbus cordis. Ao. Truncus arteriosus. Au. Atrium. B. Bulbus cordis. RV. Right ventricle. LV. Left ventricl …   Wikipedia

  • Ductus arteriosus — Artery: Ductus arteriosus Plan of the fetal circulation. ( Ductus arteriosus visible at upper right.) …   Wikipedia

  • truncus arteriosus — the first part of the arterial vascular system after the bulbus cordis of the heart, q.v. It is not part of the heart as it contains no cardiac fibres, only smooth muscle …   Dictionary of ichthyology


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