GIT Flashcards
How many layers makes up the walls of the GIT, name each one of them?
4
Mucosa layer
Sub mucosa layer
Muscularis layer
Serosa layer
State the two plexus of nerves that makes up the enteric nervous system
Myenteric plexus of the Muscularis layer and the Meissner plexus of the sub mucosa layer
What gives rise to the enteric nervous system
Neural crest cells
What regulates the motility of the GI tract
Enteric nervous system
Where does the maximum reabsorption occur in the gastrointestinal tract
Jujenum
What gland produces the most basic secretions in the gastrointestinal tract?
Brunner glands:these are mucous producing glands in the duodenum
What type of secretion is saliva in nurture
It’s an Hypotonic solution
a)Which salivary gland is considered to be the major salivary gland
b)Which one is considered minor?
a)Submandibular salivary gland
b)Ebner salivary gland
State any thee antibacterial contents of saliva
1)IgA
2)lactofferrin
3)lysozyme
State the name of the enzymes in saliva that digest,carbohydrates and lipids respectively?
Salivary amylase ptyalin
Lingual lipase
The salivary glands are Innaverted by the spinal nerves ,TRUE/FALSE
False,they are innaverted by cranial nerves specifically C7 and C9 cranial nerves
Which cranial nerve innaverts the parotid salivary gland
C9
Which cranial nerves innaverts the submandibular salivary glands to secret saliva
Cranial nerve 7
The maximum concentration of K+ in the body is found in the ?
Colon
The maximum secretion of K+ in the body is in the ?
Saliva
