MODULE 12 Flashcards
the tongue is covered with moist, pink tissue called
mucosa
tiny bumps that gives the tongue its rough texture is called
papillae or lingual papillae
the tether that holds down the front of the mouth is called
frenum or lingual frenulum
the left and rights sides of the tongue are separated by a vertical section of fibrous tissue known as the
lingual septum
This division is along the length of the tongue save for the very back of the pharyngeal part and is visible as a groove called the
median sulcus
the human tongue is divided into two parts called
anterior oral part and posterior pharyngeal part
characteristics for the anterior oral part of the tongue
2/3 and highly mobile
characteristics of the posterior pharyngeal part
1/3, less mobile, separated fron epiglottis by VALLECULAE
The human tongue is divided into anterior and posterior parts by the
terminal sulcus
The apex of the terminal sulcus is marked by a blind foramen called
foramen cecum
surfaces of the tongue
DORSAL and VENTRAL surface
small, nipple-like structures on the upper surface of the tongue that give it its characteristic rough texture.
lingual papilla
the type of papillaes that are not associated with taste buds
filiform papillae
most numerous, cone-shaped, responsible for the sensation of touch, and do not contain taste buds
filiform papillae
club-shaped, found on the sides and tip of the tongue, scattered amongst the filiform papillae, can distinguish the five tastes
fungiform papillae
short vertical folds, 4-5, leaf-like ridges of mucosa, bilaterally symmetrical, found on each sides at the back of the tongue
folliate papillae
dome-shaped, in front of the terminal sulcus and foramen cecum, 8-12, 1-2mm wide
circumvallate papillae
FISSURES
psoriasis skim disorder
ABNORMAL SMOOTHNESS
atrophic glossitisis
WHITE CREAMY COTTAGE CHEESE LAYER ON THE TONGUE
oral candidiasis
BRIGHT REDNESS ON THE TONGUE
vitamin b12 deficiency
salivary glands in mammals
exocrine glands that produce saliva
the 3 paired major salivary glands
parotid gland, submandibular gland, sublingual gland
Salivary glands can be classified as
serous, mucous, or seromucous
main type of protein in serous secretions
alpha-amylase (ptyalin)
main type of protein is mucous secretions
mucin
largest salivary gland
parotid gland
parotid gland produce how much saliva?
20%
type of secretion of parotid gland
serous
infection in the peotid gland is called
MUMPS
a pair of major salivary glands located beneath the lower jaws
submandibular gland
type of secretion of submandibular gland
seromucous
how much saliva is produced by the subandibular gland
65-70%
the saliva produced by the submandibular gland exit through the
Wharton duct
a pair of major salivary glands located jnferior to the tongue
sublingual gland
type of secretion produced by the sublingual gland
mucous in nature, however it is categorized as a mixed gland
saliva produced by the sublingual gland exits through
8-20 excretory ducts called Rivinus ducts
how much saliva produced by the sublingual gland
5%
how many minor salivary glands are located in the oral cavity and and how long are they
800 -1000 and 1-2mm in diameter
how many litres of saliva are produced by humans in a day?
0.5 - 1.5 litres
type of secretion by the minor salivary glands
mucous in nature
what are lymph nodes found in the neck called
cervical lymph nodes
how many lymph nodes are in the body and in the neck?
800 in the body, 300 in the neck
acting as filters for foreign particles including cancer cells, but have no detoxification function.
lymph nodes
the remnant of the median thyroid diverticulum that develops during the early embrynoic stage
foramen cecum
