Morphological Comparison of the Filiform Papillae of New Zealand White Rabbits (Oryctolagus cuniculus) as Domestic Mammals and Egyptian Fruit Bat (Rousettus aegyptiacus) as Wild Mammals Using Scanning Electron Microscopic Specimens

El‐Bakary

2017

Anat Histol Embryol

The present study represents the first definitive anatomical description of the oropharyngeal cavity of the coot Fulica atra. For this purpose, the organs of six birds were prepared to examine grossly and by SEM and stereomicroscope. The oval lingual apex had multiple overlapping branched acicular processes on its anterior and lateral border. The lingual apex and body had multiple caudally directed filiform-like papillae. By stereomicroscopy, the lingual root had a characteristic appearance and consisted of four parts. The openings of the anterior glands were present on the dorsal lingual surface of the body, while the projected papillae with wide openings of the posterior glands were present on the dorsal surface of lingual root. There was a row of caudally directed pharyngeal papillae at the caudal border of the laryngeal mound. Grossly, the pharyngeal papillae arrangement took a W-shape, while by stereomicroscopy was observed to be heart shape. The palate was divided into two regions: a small rostral non-papillary and a large caudal papillary region, but the rostral region was characterized by the presence of three longitudinal ridges. The papillary crest had two paramedian longitudinal papillary rows, which continued caudally until the beginning of the third median row. The freely distributed papillae took a caudolateral direction, while the papillae encircling the rostral part of choanal cleft took a caudomedial direction. There was a transverse papillary row between the two parts of choanal cleft. There was a transverse papillary row between the caudal border of the infundibular cleft and oesophagus.

Section: Discussionmentioning

confidence: 99%

Morphological Characteristics of the Oropharyngeal Cavity (Tongue, Palate and Laryngeal Entrance) in the Eurasian Coot (Fulica atra, Linnaeus, 1758)

El‐Bakary

2017

Anat Histol Embryol

“…According to the anatomical SEM published articles, the presence of the filiform papillae and its subtypes are well‐developed in the animals (El‐Bakary & Abumandour, ) and the its subtypes reached to the six subtypes in the Egyptian eating fruit bats (Abumandour, ; Abumandour & El‐Bakary, ), while the presence of the filiform papillae in the bird species is limited. The current work observed the presence of the filiform papillae on the lateral surface of the lingual body, similar observation noted in the duck and goose (Jackowiak et al, ; Marzban Abbasabadi & Sayrafi, ; Skieresz‐Szewczyk et al, ), while these filiform papillae were observed in the dorsal surface of the lingual apex and body as observed in the Eurasian coot (Abumandour & El‐Bakary, ), house sparrow (Abumandour, ), common kestrel and Hume's tawny owl (Abumandour & El‐Bakary, ), and the Egyptian laughing dove (Abumandour & El‐Bakary, ).…”

Section: Discussionmentioning

confidence: 99%

Surface ultrastructural descriptions of the oropharyngeal cavity of Anas querquedula

Microscopy Res & Technique

Bassuoni

Hanafy

2019

The current work considers the first anatomical description of oropharyngeal cavity of Garganey, which was performed on eight heads with the help of scanning electron microscopy (SEM). The round apex of elongated tongue has anterior spatula‐like named lingual nail. SEM of dorsal surface of lingual nail carry microtubercles and micropores on its rostral part, while its caudal part carry numerous microridges and micropores, while lateral apical surface only without lingual nail carrying filiform papillae, but its ventral surface carry exfoliated scales‐like projections. Lateral lingual tip carries numerous laterally directed hairs‐like structures. Rostral part of body carry region of small conical papillae in between them small hairs‐like papillae on its lateral surface. Middle part of body carry lingual comb on its dorsal surface, while its lateral surfaces carry region of small conical papillae in between them hairs‐like papillae in addition to filiform papillae, and large conical with small filiform papillae begin to appear laterally to the heads of lingual comb. Lateral surface of lingual prominence carry region of large conical and small filiform papillae on its rostral part, while its caudal part occupied by laterally situated spinated border from the root. Lingual root has two triangular smooth middle and spinated lateral and caudal. Laryngeal entrance divided into papillary and nonpapillary regions. Roof of oropharyngeal cavity divided into lamellar and papillary regions. Choanal cleft divided into rostral narrow ¼ and wide caudal ¾ parts. In conclusion, feeding process depend on the filter feeding mechanism that performed by the help of lateral situated papillae with lingual prominence.

“…Also, posteromedially directed conical papillae at the lingual root. The difference in the papillary orientation is more clear in the bats as they have a special character in their life, feed intake during fly (Jackowiak et al., ; Mqokeli and Downs, ; Abumandour and El‐Bakary, ; Abumandour, ).…”

Section: Discussionmentioning

confidence: 99%

Morphological Studies of the Tongue of the Egyptian Water Buffalo (Bubalus bubalis ) and Their Lingual Papillae Adaptation for Its Feeding Habits

El‐Bakary

2017

Anat. Histol. Embryol.

This work was conducted to describe the morphological characters of the tongue of Egyptian water buffalo (Bubalus bubalis). The lingual root and the dorsal middle region of apex and body in addition to the dorsal and ventral surface of lingual tip were devoided from any fungiform papillae. The lingual tip contains conical papillae only. The ventral surface of lingual apex was divided into two portions by the U-shaped fungiform line into papillary and non-papillary region. Histological investigation on the lingual surface epithelium and lamina propria submucosa reflects differences in these layers in different parts of the tongue. By SEM, there are two subtypes of filiform papillae: caudally directed papillae on dorsal surface and rostrally directed papillae on the lateral region of ventral surface of lingual apex. There are two subtypes of conical papillae: small slightly rostrally directed papillae on dorsal and ventral surface of lingual tip and large posteromedially directed papillae on dorsal surface of lingual root. The rounded circumvallate papillae consisted of round bulb surrounded by deep circular groove, which surrounded by circular pad. Higher magnification of filiform papillae indicates the presence of microcrests separated by microgrooves, and these microgrooves consisted of microrodes. The fungiform surface having micropores on the tip of elevated tubercle for taste buds pores. All these observed structures (microcrests, microgrooves, microrodes, tubercles, microridges) in a higher magnification allow animals to transport food particles through the oral cavity and help in the defensive behaviour. There are strong correlations between the tongue anatomical characteristics and its functions.