QuestionSBA
QuestionChoice
Mucosa in the anal canal is organised into longitudinal folds, termed anal columns. At their inferior ends, these folds are joined by anal valves. The anal valves collectively form the pectinate (dentate) line which divides the anal canal into upper and lower parts. Just superior to these valves lie small pouches termed anal sinuses, which contain mucus secreting glands.
10040763
c
Pectinate line
QuestionChoice
Mucosa in the anal canal is organised into longitudinal folds, termed anal columns. At their inferior ends, these folds are joined by anal valves. The anal valves collectively form the pectinate (dentate) line which divides the anal canal into upper and lower parts. Just superior to these valves lie small pouches termed anal sinuses, which contain mucus secreting glands.
10040761
a
Anal valve
QuestionChoice
Mucosa in the anal canal is organised into longitudinal folds, termed anal columns. At their inferior ends, these folds are joined by anal valves. The anal valves collectively form the pectinate (dentate) line which divides the anal canal into upper and lower parts. Just superior to these valves lie small pouches termed anal sinuses, which contain mucus secreting glands.
10040762
b
Anal column
QuestionChoice
Mucosa in the anal canal is organised into longitudinal folds, termed anal columns. At their inferior ends, these folds are joined by anal valves. The anal valves collectively form the pectinate (dentate) line which divides the anal canal into upper and lower parts. Just superior to these valves lie small pouches termed anal sinuses, which contain mucus secreting glands. The internal anal sphincter is muscle under involuntary control, which surrounds the upper 2/3rds of the anal canal.
10040765
e
Internal anal sphincter
QuestionChoice
Mucosa in the anal canal is organised into longitudinal folds, termed anal columns. At their inferior ends, these folds are joined by anal valves. The anal valves collectively form the pectinate (dentate) line which divides the anal canal into upper and lower parts. Just superior to these valves lie small pouches termed anal sinuses, which contain mucus secreting glands.
The external anal sphincter is a voluntary muscle that surrounds the lower anal canal.
10040764
d
External anal sphincter
Concept
Chapter
2693
5343
Anal canal
Topic
197
Abdominal anatomy
20451
Picture
3050
5 - Anal valve.png
images/6om5uxue1727763685133.jpg
images/6om5uxue1727763685133_256.jpg
images/6om5uxue1727763685133_512.jpg
JggGDAJ6/GTIqal4tsf2eGuPpg==
Topic
197
Abdominal anatomy
What is the structure labelled by the blue arrow?
[lightgallery]
a