Each lymphatic nodule has a germinal center containing many immature lymphocytes. As they mature, these lymphocytes enter either the area of the nodule surrounding the germinal center or the lymph. These mature lymphocytes are of the B-cell type and are m
Secretory cells are found in a group, or acinus. Connective tissue surrounds the epithelium, protecting and supporting the gland. The connective tissue of the gland is divided into the capsule, which surrounds the outer part of the entire gland, and the s
The connective tissue of the gland is divided into the capsule, which surrounds the outer part of the entire gland, and the septa. Each septum helps divide the inner part of the gland into the larger lobes and smaller lobules.
nodes and nodules.
lobes and lobules.
ducts and acinus.
channels and ducts.
The foramen cecum, which is the opening of the thyroglossal duct, is a small, pitlike depression located where the sulcus terminalis points backward toward the oropharynx. This duct shows the origin of the thyroid and the migration pathway of the thyroid
collection of diffuse tonsillar tissue.
median line demarcating the fusion of the tongue.
groove pointing toward the pharynx.
depression at the apex of the sulcus terminalis.
The decreased production of saliva is considered hyposalivation and can result in xerostomia, or dry mouth.
The von Ebner salivary glands are associated with the larger circumvallate lingual papillae on the posterior part of the dorsal surface of the tongue. These glands contain only serous acini and thus secrete only a watery serous secretory product. The subl
Because the roots of the maxillary posterior teeth are in close proximity to the maxillary sinus, maxillary sinusitis can sometimes result as infection spreads from a periapical abscess associated with one of the roots of a maxillary posterior tooth.
The sublingual salivary gland is the only unencapsulated major salivary gland. Both the parotid and submandibular salivary glands are encapsulated major salivary glands.
Both parotid and sublingual glands
Intraoral tonsillar tissue consists of nonencapsulated masses of lymphoid tissue located in the lamina propria of the oral mucosa. It is covered by stratified squamous epithelium that is continuous with the surrounding oral mucosa.
The palatine tonsils are two rounded masses of variable size located between the anterior and posterior faucial pillars. The lingual tonsil is an indistinct layer of diffuse lymphoid tissue located on the base of the dorsal surface of the tongue, posterio
base and body of the tongue.
The lingual tonsil is an indistinct layer of diffuse lymphoid tissue located on the base of the dorsal surface of the tongue. Behind the uvula, on the superior and posterior walls of the nasopharynx, are the pharyngeal tonsils, forming an incomplete ring
Lateral tongue surface
Between the faucial pillars
Walls of the nasopharynx
Dorsal tongue surface
Saliva supplies the minerals for supragingival calculus formation; gingival crevicular fluid supplies the minerals via the blood system for subgingival calculus formation. Mucoserous acini have both a group of mucous cells surrounding the lumen and a sero
Mucoserous acini have both a group of mucous cells surrounding the lumen and a serous demilune.
More than one myoepithelial cell can be found on a single acinus.
Saliva supplies the minerals for subgingival calculus formation.
Saliva supplies the minerals for supragingival calculus formation.
The parathyroid glands within the thyroid gland are not palpable during an extraoral examination of a patient. The thyroid gland and parotid salivary gland can be palpated during an extraoral examination in a healthy patient. With inflammation or other di
The duct associated with an acinus or terminal part of the salivary gland is the intercalated duct. The striated duct is a part of the ductal system that is connected to the intercalated ducts in the lobules of the salivary gland. The final part of the sa
Both the intercalated and striated ducts
The connective tissue of the gland is divided into the capsule, which surrounds the outer part of the entire gland, and the septa. Each septum helps divide the inner part of the gland into the larger lobes and smaller lobules. The final part of the saliva
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