Please enable JavaScript.
Coggle requires JavaScript to display documents.
The anatomy and histology of salivary glands - Coggle Diagram
The anatomy and histology of salivary glands
various anatomical structures at the external surrounding of oral cavity/surface anatomy
Lips (labia oris): The lips form the outer boundary of the oral cavity. They are composed of soft, flexible tissue and are crucial for functions like speech, eating, and facial expression.
Philtrum: The philtrum is the vertical groove or depression in the midline of the upper lip. It is formed during fetal development and is a distinguishing feature of the human face.
Philtral Columns: These are the ridges on either side of the philtrum
Frenulum: The frenulum is a small fold of tissue that attaches the lips to the gums. There are two frenula in the oral cavity: the labial frenulum on the upper lip and the lingual frenulum underneath the tongue.
Modiolus: The modiolus is a small circular structure at the corner of the mouth, formed by the convergence of several facial muscles. It plays a crucial role in controlling facial expressions.
Mental Protuberance: The mental protuberance is the prominent part of the mandible that forms the chin. It's the most anterior part of the lower jaw.
Mental Tubercle: This is a small elevation on the external surface of the mandible (lower jaw) at the midline. It's located just below the lower lip.
Labial Tubercle: This is a small, prominent mound of tissue in the center of the upper lip, just below the nose. It's more noticeable in some individuals.
the two regions of the oral cavity with their borders and various anatomical structures in the two regions and around the oral cavity
Vestibule
Oral cavity proper
the function, microscopic structure, and distribution, and structure of the tongue papillae
structure
Fungiform
connective tissue
non-keratinized stratified squamous epithelium
Circumvallate
non-keratinized stratified squamous epithelium
taste buds
sulcus (the groove)
serous glands of von Ebner
Filiform:
the epithelium
keratinized epithelium
conical lips of papillae
connective tissue
Foliate
non-keratinized epithelium
oral mucosa (specialized)
taste buds
intrinsic muscle of the tongue (skeletal muscle fibers)
serous glands of von Ebner
function
Filiform Papillae: The most numerous --> primarily responsible for mechanical stimulation; moving food particles during chewing and swallowing --> lack taste buds.
Fungiform Papillae: Scattered across the tongue --> contain taste buds --> involved in taste sensation.
Circumvallate Papillae: Located at the back of the tongue --> larger than fungiform papillae; house taste buds; involved in taste perception --> more sensitive to bitter tastes, which is thought to be a protective mechanism to detect potentially harmful substances
Foliate Papillae: Found on the sides of the tongue --> contain taste buds; involved in taste perception; more prominent in infancy and tend to decrease in size and prominence with age
the anatomical structure of the tongue organ and the muscles that work on the tongue
Tip/apex
The anterior and mobile region of the tongue
Body of tongue
Base of tongue
Pharyngeal/postsulcal section
The back of the tongue
Lingual septum
Median sulcus
Tongue muscle
Instrinsic
Superior longitudinal muscle
Inferior longitudinal muscle
The transverse muscle
Vertical muscle
Extrinsic
Genioglossus muscle
Styloglossus muscle
Hyoglossus muscle
Palatoglossus (Glossopharyngeal) muscle
the microscopic structure of salivary glands
Myoepithelial cells
Intercalated ducts
The secretory acini
the classification and microscopic structure of oral mucosal
Masticatory
Lining mucosa
Specialized
the microscopic structure of the oral submucosal
It is a connective tissue that has various thickness.
Serves generally as attachment for lamina propria to the underlying bone or muscle
Submucosa contain glands adipose tissues : vascular, neural components, minor salivary glands and lymphoid tissue.
Submucosa is found in all the buccal cavity regions except the attached gingiva and the hard palate that covered by masticatory mucosa.
Ectopic sebaceous glands, known as Fordyce granules, may be found on the submucosa layer of the oral mucosa.