Asked by Maple Syrup on Sep 23, 2024
Verified
Which muscles form the outermost layer of the layered abdominal wall muscles?
A) Internal oblique
B) External intercostal
C) Transversus abdominis
D) Rectus abdominis
E) External oblique
External Oblique
The external oblique is a muscle located on the outer surface of the sides of the abdomen, involved in the movement and rotation of the trunk.
Wall Muscles
Muscle groups found in the wall of body cavities, such as the abdominal muscles which support and contain the organs of the abdomen.
Outermost Layer
The outermost layer refers to the surface or external layer of an object or body, which is directly exposed to the environment.
- Comprehend the structural arrangement and roles of the muscles in the abdominal wall.
Verified Answer
PK
Patricia Kyle Gopez5 days ago
Final Answer :
E
Explanation :
The external oblique muscles form the outermost layer of the abdominal wall muscles. They run diagonally downwards and forwards, with their fibers pointing towards the midline on either side of the rectus abdominis muscle. The other muscles listed (internal oblique, transversus abdominis, rectus abdominis) are located deeper and do not form the outermost layer. The external intercostal muscles are not a part of the abdominal wall muscles, but rather the muscles between the ribs that assist with respiration.
Learning Objectives
- Comprehend the structural arrangement and roles of the muscles in the abdominal wall.