Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Biology
Question

Outermost layer in the wall of alimentary canal is

  1. Serosa
  2. Muscularis
  3. Mucosa
  4. Submucosa

A
Serosa
B
Mucosa
C
Muscularis
D
Submucosa
Open in App
Solution
Verified by Toppr

The correct option is B Serosa
The wall of alimentary canal possesses four layers- serosa, muscularis, sub mucosa, and mucosa. Serosa is the outermost layer and is made up of a thin mesothelium and connective tissue. Muscularis is formed by smooth muscles usually arranged into an inner circular and an outer longitudinal layer. Sub-mucosa layer is formed of loose connective tissues containing nerves, blood and lymph vessels. Glands are also present in sub-mucosa of duodenum. Mucosa is the innermost layer lining the lumen of the alimentary canal.
So, the correct answer is 'Serosa'

Was this answer helpful?
0
Similar Questions
Q1
Outermost layer in the wall of alimentary canal is

View Solution
Q2
In the wall of the alimentary canal, which is the true sequence from the outermost to the innermost layers?
View Solution
Q3
What are the basic layers of the wall of alimentary canal?
View Solution
Q4
The wall of alimentary canal from oesophagus to rectum possesses _________ layers.
View Solution
Q5
Choose the correct set of statements about the anatomical features of the alimentary canal:
I. Outermost layer in the wall of the alimentary canal is serosa
II. Secretory glands occur in mucosa layer of the alimentary canal
III. Muscularis layer consists of both longitudinal and circular muscles
IV. Myenteric plexus is the bunch of nerves responsible for controlling gut’s intrinsic peristaltic activity
View Solution