Each layer can be associated with a particular function and of digested food from the esophagus to the anus. The muscularis can be associated with irritable bowel disorder. syndrome (IBS), in which contractions of the wall cause abdominal pain, constipa- tion, and/or diarrhea. The underlying cause of IBS is not known, although Some suggest that because this area is under nervous system control, stress may be an underlying cause. The fourth and outermost layer of the tract is the serosa, which secretes a lubricating fluid. The serosa is a part of the peritoneum, the internal lining of the abdominal cavity. nerve lymphatic supply vessel Lumen central space containing food being digested Mucosa inner mucous membrane layor modified according to the digestive organ Submucosa broad band of loose connective tissue that contains nerves, blood, and lymphatic vessels artery vein Muscularis two layers of- smooth muscle Serosa thin, outermost tissue that is the visceral peritoneum Figure 9.2 The layers of the gastrointestinal tract wall. The wall of the gastrointestinal tract contains four layers surrounding an internal space, or lumen.
Each layer can be associated with a particular function and of digested food from the esophagus to the anus. The muscularis can be associated with irritable bowel disorder. syndrome (IBS), in which contractions of the wall cause abdominal pain, constipa- tion, and/or diarrhea. The underlying cause of IBS is not known, although Some suggest that because this area is under nervous system control, stress may be an underlying cause. The fourth and outermost layer of the tract is the serosa, which secretes a lubricating fluid. The serosa is a part of the peritoneum, the internal lining of the abdominal cavity. nerve lymphatic supply vessel Lumen central space containing food being digested Mucosa inner mucous membrane layor modified according to the digestive organ Submucosa broad band of loose connective tissue that contains nerves, blood, and lymphatic vessels artery vein Muscularis two layers of- smooth muscle Serosa thin, outermost tissue that is the visceral peritoneum Figure 9.2 The layers of the gastrointestinal tract wall. The wall of the gastrointestinal tract contains four layers surrounding an internal space, or lumen.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Considering that the GI tract consists of layers of muscles (see Fig. 9.2), why might exercise help control GERD?
Transcribed Image Text:Each layer can be associated with
a particular function and
of digested food from the esophagus to the anus. The muscularis
can be associated with irritable bowel
disorder.
syndrome (IBS), in which contractions of
the wall cause abdominal pain, constipa-
tion, and/or diarrhea. The underlying
cause of IBS is not known, although
Some suggest that because this area is
under nervous system control, stress
may be an underlying cause.
The fourth and outermost layer of
the tract is the serosa, which secretes a
lubricating fluid. The serosa is a part of
the peritoneum, the internal lining of the
abdominal cavity.
nerve lymphatic
supply vessel
Lumen
central space containing
food being digested
Mucosa
inner mucous membrane
layor modified according
to the digestive organ
Submucosa
broad band of loose
connective tissue that
contains nerves, blood,
and lymphatic vessels
artery
vein
Muscularis
two layers of-
smooth muscle
Serosa
thin, outermost tissue
that is the visceral
peritoneum
Figure 9.2 The layers of the gastrointestinal tract wall.
The wall of the gastrointestinal tract contains four layers surrounding
an internal space, or lumen.
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