Electronic Theses and Dissertation

Lutung kelabu (trachypithecus cristatus) merupakan primata folivora yang mengonsumsi daun muda sehingga memerlukan adaptasi morfologi rongga mulut untuk mendukung proses pemotongan, pengunyahan, dan pengolahan pakan berserat. penelitian ini bertujuan untuk mengkaji makroanatomi organ rongga mulut pada lutung kelabu. penelitian menggunakan satu ekor kadaver lutung kelabu betina yang ditemukan di sekitar saree, lembah seulawah, kabupaten aceh besar pada tahun 2025 dan disimpan dalam freezer hingga digunakan sebagai sampel penelitian. organ yang diamati meliputi bibir, pipi, lidah, gusi, gigi, langit-langit, dan kelenjar saliva. hasil penelitian menunjukkan bahwa bibir lutung kelabu relatif tipis, berwarna hitam gelap, dan memiliki frenulum labialis. pipi terdiri atas permukaan luar yang ditutupi rambut halus dan permukaan dalam berupa mucosa buccal yang halus, lembab, serta mengilap, tanpa adanya kantung pipi (cheek pouch). lidah terbagi atas empat bagian, yaitu apex lingua, rostral, corpus medial et caudal dan radix lingua serta memiliki empat jenis papila, yaitu filiformis, fungiformis, foliata, dan circumvallata. gusi berwarna merah muda hingga kemerahan dengan pigmentasi gelap. gigi terdiri atas incisivus, caninus, premolar, dan molar dengan formula gigi i 2/2 c 1/1 p 2/2 m 3/3 jumlah total 32 gigi serta molar berpola bilophodont. langit-langit terdiri atas palatum durum memiliki permukaan yang luas dan lebar dan palatum molle permukaan yang halus. kelenjar saliva besar (kelenjar parotis, kelenjar mandibular dan kelenjar sublingualis). hasil penelitian disimpulkan bahwa rongga mulut lutung kelabu secara makroanatomi diperkirakan adanya adaptasi terhadap jenis pakan yang dikonsumsi. kata kunci: makroanatomi, rongga mulut, trachypithecus cristatus, folivora.

The gray langur (Trachypithecus cristatus) is a folivorous primate that consumes young leaves, requiring adaptations to the oral cavity morphology to support the cutting, chewing, and processing of fibrous feed. This study aims to examine the macroanatomy of the oral cavity organs in the gray langur. The study used a female gray langur cadaver found around Saree, Seulawah Valley, Aceh Besar Regency in 2025 and stored in a freezer until used as a research sample. The organs observed included the lips, cheeks, tongue, gums, teeth, palate, and salivary glands. The results showed that the gray langur's lips are relatively thin, dark black, and have a labial frenulum. The cheeks consist of an outer surface covered with fine hair and an inner surface consisting of a smooth, moist, and shiny buccal mucosa, without cheek pouches. The tongue consists of four parts, namely the apex lingua, rostral, corpus medial et caudal and radix lingua and has four types of papillae, namely filiform, fungiform, foliate, and circumvallate. Gums are pink to reddish with dark pigmentation. Teeth consist of incisors, canines, premolars, and molars with a dental formula of I I 2/2 C 1/1 P 2/2 M 3/3 total of 32 teeth and molars with a bilophodont pattern. The palate consists of a hard palate with a wide and wide surface and a smooth surface of the soft palate. Large salivary glands (parotid glands, mandibular glands and sublingual glands). The results of the study concluded that the oral cavity of the gray langur is macroanatomically estimated to be an adaptation to the type of food consumed. Keywords: macroanatomy, oral cavity, Trachypithecus cristatus, folivorous.