Block 3 lecture 1 chewing, swallowing, churning Flashcards
the gut is divided into 3 parts?
forgut, midgut and hind gut
what makes up the roof of the mouth?
hard and soft pallate
what muscle is the floor of the mouth?
mylohoid muscle
what are the three pairs of salivary glands?
parotid, sublingual, submandibular
which is the biggest gland?
parotid
where does parotid gland open?
runs along masseter and opens near second upper molar
where is the sublingual gland found?
under the tongue
what are the four muscles of mastication?
temporalis, masseter, lateral pterrygoid, medial pterygoid
what is the anterior fold running from the uvular?
palatoglossal fold
what is the posterior fold running from the uvula called?
palatopharyngeal fold
what is the space between the folds at the back of the mouth called?
tonsila fossa
which tonsils does the tonsila fossa contain?
palatine tonsils
at which cervical vertebrea does the pharynx end?
C6
which cervical vertebrea does the oesophagus extend?
C6-C10
how long is the oesophagus (cm)?
25cm
what type of muscle is the upper oesophageal sphincter made out of?
circular skeletal muscle
what happens to the upper oesophageal sphincter during swallowing?
relaxes
what is the lower oesophageal sphincter made up of and what is it reinforced by?
smooth muscle, it is reinforced by the right diaphragmatic arus because it is weak and this prevents gastro oesophagus reflux
what are the three anatomical constrictions of the oesophagus?
pharyngo oesophageal junction, tracheal bifurcation, gastro oesophageal junction
what is the epithelial layer of the stomach?
simple columnar
what is the arterial supply to the stomach?
coeliac trunk
what are the fold in the stomach called and why do we have them?
rugea because the epithelium cant stretch
in relation to the duodenum where is the pancreas found?
the pancreas is found in the curvature of the duodenum
by what vessel and where does the duodenum recieve the common bile duct and the pancreatic duct?
hepatopancreatic ampulla and major duodenal papilla
