Study of Oval Foramen Anatomy in the Hearts Iranian One Humped Camel (Camelus Dromedarius) Fetuses

Document Type : Research Paper

Authors

1 Associate Professor, Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran

2 Graduated Student of Veterinary Medicine, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran

Abstract

    This study was carried out to investigate the morphology of the oval foramen in the fetal stage of dromedary camel fetuses by routine dissection. The hearts were obtained from 21 fetuses that were collected from Yazd slaughter house of Iran. The Crown Vertebral Rump Length (CVRL) of fetuses were from 10.1 to 85 cm and estimated gestational age calculated from 81.9 to 270 days old. The results showed that anatomical structures of oval foramen in fetal camels concluded of septum primum (valve of oval foramen), foramen secundum, septum secundum and a large passageway called oval foramen (foramen ovale). The septum primum was a flat, long thin, white color and unfenestrated membrane (fold) in all fetuses. The thin fold was in the lower portion of formen secundum and constituted about %75 to %100 of the lumen of the oval foramen in the small to large fetuses, respectively. So, it constituted a large proportion of lumen and was large enough to cover the opening of oval foramen, specialy in large fetuses. The septum secundum was a thick, short and crescent-shaped fold above of ovale foramen. The oval foramen showed like an oval passage way between free border and arms of septum secundum. It was concluded that despite of size of heart and oval foramen, all structural arrangements of heart oval foramen in fetus of camel are similar to reports about other mammals and human.

Keywords

References

Costabeber, I., Nicoloso, L. H., Souza Filho, O. C. D., ... & Costabeber, A. M. (2007). Morphological basis for the study of the interatrial septum in the human fetus. Arquivos Brasileiros de Cardiologia, 88, 559-564.
Carlson, B. M. (2018). Human Embryology and Developmental Biology E-Book: With Student Consult Online Access. Elsevier Health Sciences.
Cole‐Jeffrey, C. T., Terada, R., Neth, M. R., Wessels, A., & Kasahara, H. (2012). Progressive anatomical closure of foramen ovale in normal neonatal mouse hearts. The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology, 295(5), 764-768.
Dyce, K. M., Sack, W. O., & Wensing, C. J. G. (2009). Textbook of veterinary anatomy-E-Book. Elsevier Health Sciences.2010; 253-256.
Elgozouli, S. O., & Osman, D. I. (2013). Foetal circulation of the dromedary camel (Camelus dromedarius). Research Journal of Veterinary Sciences, 6(1), 11-19.
Hildebrand, M. (1968). Anatomical preparations. Univ of California Press, pp:90-100
HO, S. Y., MCCARTHY, K. P., & RIGBY, M. L. (2003). Morphological features pertinent to interventional closure of patent oval foramen. Journal of Interventional Cardiology, 16(1), 33-38.
Hussein, F. M., Noseir, M. B., El-Bawab, I. E., & Paccamonti, D. L. (1991). Prenatal assessment of weight and dimensions of the camel conceptus (Camelus dromedarius). Animal Reproduction Science, 26(1-2), 129-136.
Hyttel, P., Sinowatz, F., Vejlsted, M., & Betteridge, K. (2010). Essentials of domestic animal embryology. Saunders, pp: 187 - 191.
 Kiserud, T. (2005, December). Physiology of the fetal circulation. In Seminars in Fetal and Neonatal Medicine (Vol. 10, No. 6, pp. 493-503). WB Saunders.
Macdonald, A. A. (1994). The placenta and cardiac foramen ovale of the babirusa (Babyrousa babyrussa). Anatomy and Embryology, 190(5), 489-494.
Macdonald, A. A., FOWDEN, A. L., SILVER, M., OUSEY, J., & Rossdale, P. D. (1988). The foramen ovale of the foetal and neonatal foal. Equine Veterinary Journal, 20(4), 255-260.
Macdonald AA, Dixon C, Boyd IL. (1995) Comparative anatomy of the cardiac foramen ovale in the Pinnipedia, Canadian Journal of Zoology, 73(5): 850-857.
Macdonad AA, CarrP A, Currie R J W. (2007) Comparative anatomy of the foramen ovale in the hearts of cetaceans, Journal of  Anatomy, 211(1): 64-77.
Macdonald AA. (1988) Comparative anatomy of the foramen ovale in the Suina, Anatomy and Embryology, 178 (1): 53-57.
 Macdonald AA, Johnstone M. (1995) Anatomy of the cardiac foramen ovale in cats (Felidae), dogs (Canidae), bears (Ursidae) and hyaenas (Hyaenidae), Journal of Anatomy, 186 ( Pt 2):235-43.
Mandartim CA. (1993) Morphometry of the human heart in second and third trimesters of gestation, Early Hum Dev. J.; 35 3: 173-182.
McGeady TA, Quinn PJ, Fitzpatrick ES, et al. (2017) Veterinary Embryology. 2nd ed. UK: John Wiley & Sons; pp:126-128.
Momma K, Ito T, Ando M. (1992) In situ morphology of the foramen ovale in the fetal and neonatal rat, Pediatric Research, 32(6):669-672.
 Nanbo TA. (1990) method to inject the umbilical vein of the rat. Reproduction Toxicology.; 4: 203- 208.
Sadler T. (2015) Langman Medical Embryology, 10th ed. United States. Lippincore Williams and Wilkins, pp: 185- 187.
Schoenwolf GC, Bleyl SB, Brauer PR, et al. (2015) Larson's human embryology. 5th ed. Philadelphia, USA: Churchill Livingstone, pp: 286 - 288.
Smuts MMS, Bezuidenhout AJ, Maziersky D. (1987) Anatomy of the Dromedary, Clarendon Press Oxford, pp: 142-168.
Vitums, A. (1981). The embryonic development of the equine heart. Anatomia, Histologia, Embryologia, 10(3), 193-211.
Webb, S., Brown, N. A., & Anderson, R. H. (1998). Formation of the atrioventricular septal structures in the normal mouse. Journal of Circulation Research, 82(6), 645-656.
 Webb Webb S, Brown NA, Robert H A. (1996) The structure of the mouse heart in late fetal stages, Anatomy Embryology (berl), 194: 37-47.
Zaffran, S., & Frasch, M. (2002). Early signals in cardiac development. Circulation Research, 91(6), 457-469.

Files

Share

How to cite

Statistics