Movement of food through oesophagus

1. WELCOME

2. EASWARI S.V.P
NATURAL SCIENCE
REG NO:-181/13376011hTnthn ceehhnheeiwcc
NEW B.Ed COLLEGE ,NELLIMOODU

4. MOVEMENT OF FOOD THROUGH OESOPHAGUS
The chewed food in the mouth Pharynx
Uvula Epiglottis
Prevent food from
entering nasal cavity
Prevent food
from entering
trachea

7. Pharynx oesophagus
Contraction of involuntary
muscles in oesophagus
UNIDIIRECTIONAL

9. T
The cewdfhoinw tw wnmmdnue o he df ou dd d
nwnom mtuiw
T
T Thhe c ewdhfoieonc whftmue c Th nde c ewdhfoieonc
whftmue h
T
d e cwdTfodTdwciontmwT heu dd ud etui wode
T
The cewdfhoieo wfhtuemw ome umefcn n cfT
nnfcen T wioefdw eoutui ho he ome wetduw d he
ewdfhoieo o ho o ow o wfhtuem n d ud hoe
twtu hteutuiw te dhem wfhtuemw •The Oesophagus is surrounded at the top and bottom by two
muscular rings
•1. upper esophageal sphincter 2. lower esophageal
sphincter,
•Act to close the esophagus when food not being swallowed
•The Oesophageal sphincters are functional, but not 
anatomical sphincters, meaning that they are sections of the
esophageal wall that act as a sphincter, but do not have
distinct thickenings like other sphincters

12. Food reaches the stomach in 8 secwdme
storedtdwfcTeci dfdwT
TTwfcneoTTT
ocmw
Digestion completes 
in  stomach in 4-5 
hours
Continous movement
Grinds  & mixes 
food throughly
Mechanical 
digestion