Phenotypic and Anatomical Structure of Thyroid Gland in Domestic Cat and Owls: A Comparative Study

Authors

  • Amjad ahmed University of Diyala Author
  • Ammar Ismail Jabbar University of Iraq Author

DOI:

https://doi.org/10.69923/jjcx0a70

Keywords:

thyroid gland , cranial thyroid artery , cat , owl

Abstract

The purpose of the study was to compare the anatomical characteristics of the thyroid gland in two different vertebrate species: the owl (Strix varia) and the domestic cat (Felis catus). Six disease-free animals varying-aged from each species were included in the study.

The thyroid gland of the cat was found to have a right and left lobe, situated in the cervical area, entirely beneath the larynx, and connected to both sides of the trachea. These findings were obtained from a macroscopic examination of the gland. Unlike in many other mammals, the two lobes are connected by an isthmus. The thyroid lobes have a reddish-pink hue and appeared elongated

The macroscopic anatomy the owl’s thyroid gland's revealed that it is symmetrically shaped, either oval or spherical, flat on the dorso-ventral side, and dark reddish-brown in color. similar to the cat, the two halves of the gland are not attached by an isthmus. The glandis located on both sides of the trachea and on the ventral side of the back of the neck.

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Author Biographies

  • Amjad ahmed, University of Diyala

    Amjad Adham Ahmed:  Lecturer at the College of Education for Pure Sciences, University of Diyala, Iraq. She holds a Bachelor's degree in Life Sciences from the University of Diyala in Iraq and a Master's degree from the University of Diyala in Iraq. Her research areas are Life Sciences. She has published many scientific papers in national and international conferences and journals. She can be contacted at Email : amjad.adham@uodiyala.edu.iq

  • Ammar Ismail Jabbar, University of Iraq

    Dr Ammar Ismail Jabbar:  Associate Professor, College of Dentistry, University of Iraq, Iraq. He received his Bachelor's degree in Veterinary Medicine from University of Baghdad and his Master's degree from University of Baghdad, Iraq. He holds a PhD in Veterinary Medicine with a specialization in Anatomy and Histology. His research areas are Anatomy and Histology. He has published many scientific papers in national and international conferences and journals. He can be contacted at Email: ammar.i.jabbar@aliraqia.edu.iq  

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Published

03/30/2025

Issue

Vol. 2 No. 1 (2025): Volume 2, Issue 1

Section

Articles

License

Copyright (c) 2025 Iraqi Journal for Applied Science

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References

Marshall,G.C.and H.W.Ohm 1987 .Yield responses of 16 winter wheat cultivars to row spacing and seeding rate .Agronomy Journal .79:1027-1030

How to Cite

[1]
A. ahmed and A. I. . Jabbar, “Phenotypic and Anatomical Structure of Thyroid Gland in Domestic Cat and Owls: A Comparative Study”, IJApSc, vol. 2, no. 1, pp. 6–11, Mar. 2025, doi: 10.69923/jjcx0a70.

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