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The obliques are the muscles that are known as the waist muscles. They are the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen. The external oblique muscle is one of the outermost abdominal muscles, extending from the lower half of the ribs around and down to the pelvis. The internal oblique muscle is just deep to the external oblique muscle.
| Characteristics | Values |
|---|---|
| Location | Lateral and anterior parts of the abdomen |
| Size | Broad, thin, and irregularly quadrilateral |
| Visibility | Not visible in most humans due to subcutaneous fat deposits and the small size of the muscle |
| Origin | Eight fleshy digitations, each from the external surfaces and inferior borders of the fifth to twelfth ribs (lower eight ribs)> |
| Function | Connects the ribs, top of the hip bone, fascia of the abdominals and lower back; controls bending physical activities such as bending over, twisting the torso, side bending, and assists with breathing |
| Nerve Supply | Ventral branches of the lower six thoracoabdominal nerves and the subcostal nerve on each side |
| Blood Supply | Cranial portion supplied by the lower intercostal arteries; caudal portion supplied by branches of the deep circumflex iliac artery or the iliolumbar artery |
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What You'll Learn
- The external oblique muscle is the largest and outermost of the three flat abdominal muscles
- The internal oblique muscle is underneath the external oblique muscle
- The obliques are the muscles known as the waist muscles
- The obliques control bending physical activities such as bending over, twisting the torso and side bending
- The obliques are not visible in most humans due to subcutaneous fat deposits and the small size of the muscle
The external oblique muscle is the largest and outermost of the three flat abdominal muscles
The external oblique is one of the outermost abdominal muscles, extending from the lower half of the ribs around and down to the pelvis. Together, the external oblique muscles cover the sides of the abdominal area, being large and sitting on the top surface of the abdomen right below the subcutaneous fat and skin.
The internal oblique muscle is just deep to the external oblique muscle. The internal obliques are a pair of muscles on top of the external obliques, just inside the hip bones. They are much thinner and smaller than the external obliques.
The obliques are the muscles that are known as the waist muscles. They connect the ribs, top of the hip bone, fascia of the abdominals and lower back. The oblique muscles control bending physical activities such as bending over, twisting the torso, side bending and they also assist with breathing.
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The internal oblique muscle is underneath the external oblique muscle
The obliques are the muscles known as the waist muscles. They connect the ribs, top of the hip bone, fascia of the abdominals and lower back. They control bending physical activities such as bending over, twisting the torso, side bending and they also assist with breathing.
The internal oblique muscle is just deep to the external oblique muscle. The internal obliques are a pair of muscles on top of the external obliques, just inside the hip bones. They are much thinner and smaller than the external obliques.
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The obliques are the muscles known as the waist muscles
The external oblique muscle is one of the outermost abdominal muscles, extending from the lower half of the ribs around and down to the pelvis. The external oblique functions to pull the chest downwards and compress the abdominal cavity, which increases the intra-abdominal pressure as in a Valsalva manoeuvre. It also performs ipsilateral (same side) side-bending and contralateral (opposite side) rotation: the right external oblique would side-bend to the right and rotate to the left, and vice versa.
The internal oblique muscle is just deep to the external oblique muscle. The internal obliques are a pair of muscles on top of the external obliques, just inside the hip bones. They are much thinner and smaller than the external obliques. Like the external obliques, they are on the sides of the rectus abdominis, running from the sides of the trunk towards the middle.
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The obliques control bending physical activities such as bending over, twisting the torso and side bending
The obliques are the muscles that are known as the waist muscles. They are the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen. The obliques connect the ribs, top of the hip bone, fascia of the abdominals and lower back.
The internal obliques are a pair of muscles on top of the external obliques, just inside the hip bones. They are much thinner and smaller than the external obliques. Like the external obliques, they are on the sides of the rectus abdominis, running from the sides of the trunk towards the middle.
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The obliques are not visible in most humans due to subcutaneous fat deposits and the small size of the muscle
The obliques are the muscles known as the waist muscles. They connect the ribs, top of the hip bone, fascia of the abdominals and lower back. The obliques are not visible in most humans due to subcutaneous fat deposits and the small size of the muscle. The external oblique muscle is one of the outermost abdominal muscles, extending from the lower half of the ribs around and down to the pelvis. The internal obliques are underneath the external obliques on each side of the trunk. They are much thinner and smaller than the external obliques.
The abdominal external oblique muscle is the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen. It is situated on the lateral and anterior parts of the abdomen. It is broad, thin, and irregularly quadrilateral, its muscular portion occupying the side, its aponeurosis the anterior wall of the abdomen. The external oblique functions to pull the chest downwards and compress the abdominal cavity, which increases the intra-abdominal pressure as in a Valsalva manoeuvre. It also performs ipsilateral (same side) side-bending and contralateral (opposite side) rotation: the right external oblique would side-bend to the right and rotate to the left, and vice versa.
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Frequently asked questions
The oblique muscle is situated on the lateral and anterior parts of the abdomen.
The oblique muscle is broad, thin, and irregularly quadrilateral.
The oblique muscle connects the ribs, top of the hip bone, fascia of the abdominals and lower back.
The oblique muscle controls bending physical activities such as bending over, twisting the torso, side bending and it also assists with breathing.
