Morphogenesis of the New Zealand white rabbit tongue (Oryctolagus cuniculus)

Abstract

The current study was designed to describe the prenatal developmental stages of the rabbit tongue. Thirty‐five embryos of prenatal ages (E16, E19, E23, E25, E28, and Postnatal) were obtained from New Zealand white (NZW) rabbit. The primordia of the tongue were observed on the foundation as early as day 16 prenatal age (E16). The first primordia of lingual papillae were observed that including the primordia of circumvallate papillae at day 19 prenatal (E19). Thickenings of lingual epithelium developed at 19 day prenatal of embryo. At day 23–25 pc, the presence of primordia of foliate papillae was shown in addition to primordia of the fungiform and filiform papillae were found. The development of the final shape of the tongue is a longstanding process that occurs during the prenatal and postnatal life. The first primordia of gustatory papillae appear, and only later primordia of mechanical papillae are formed. In conclusion, the morphogenesis of the tongue and its lingual papillae discussed its herbivorous nature of feeding.

Morphological features of the Egyptian Ossimi sheep tongue: New scanning electron microscopic insights into its papillary system adaptations to Egyptian ecological conditions

“…Goodarzi & Hoseini, 2015). Meanwhile, the presence of the lingual groove with the absence of the fossa linguae is described in some non-ruminant grass-eating animals (Kandyel et al, 2021;Massoud & Abumandour, 2019) while this sulcus and fossa lingua are completely absent in other non-ruminant grass-eating animal species (Haddad et al, 2021;Kobayashi, 1990).…”

“…Our description of the median lingual sulcus on the dorsal apical surface while totally vanished from the body and root, while the transverse groove, the fossa linguae, is observed between the rostral and caudal parts of the body, where comparable characterizations are observed in most ruminant species regardless of their nutritional habits and mechanisms (El‐Bakary & Abumandour, 2017; Goodarzi & Hoseini, 2015). Meanwhile, the presence of the lingual groove with the absence of the fossa linguae is described in some non‐ruminant grass‐eating animals (Kandyel et al, 2021; Massoud & Abumandour, 2019) while this sulcus and fossa lingua are completely absent in other non‐ruminant grass‐eating animal species (Haddad et al, 2021; Kobayashi, 1990).…”

Ultrastructural and histological descriptions of the oropharyngeal cavity of the rock pigeon Columba livia dakhlae with special refer to its adaptive dietary adaptations

“…2017a; El-Mansi, Al-Kahtani, Abumandour, Ezzat, & El-Badry, 2020;Gewaily & Abumandour, 2020). The more interest was focused on the morphological lingual adaptations with the different environmental conditions and their role in the different feeding strategies such as the capturing and manipulating of the food particles (Abumandour et al, 2021;Abumandour & El-Bakary, 2017b;Al-Ahmady, 2016;Haddad, Abdel-Megeid, & Abumandour, 2021;Jackowiak, Andrzejewski, & Godynicki, 2006;Onuk, Tutuncue, Kabak, & Alan, 2013). However, the laryngeal region had little attention except some published data (Abumandour et al, 2021;Abumandour & El-Bakary, 2017b;El-Mansi et al, 2020).…”