What are the names of the two meat nests above the hip and at the bottom of the back, almost at the waist?

Lumbar fossa are two sunken nests in the back and waist, above the gluteal sacrum and on both sides of the lumbar junction. Known as Maxwell in medicine, commonly known as lumbar fossa, and Saint Vortex in the art world, it is one of the symbols of an ideal mannequin.

According to Li Zhe, a teacher of human anatomy in Guangdong Medical College, the lumbar fossa is called "sacral fossa", and its deep surface is the posterior superior iliac spine. The connecting line between the two sacral fossa passes through the spinous process of the second sacral vertebra. More than 2% of babies will have it, and a very small number of people's sacral fovea suggests spina bifida or potential abnormality of sacrum and spinal cord, which needs to be checked and ruled out.

Extended data:

Formation factors of lumbar fossa:

1, which is related to sacroiliac joint near sacrum. Lumbar fossa is closely related to the physiological structure of sacroiliac joint, and the structure of sacroiliac joint has great individual differences.

2. It is related to pelvic anteversion. Normal people's pelvis leans forward slightly, with a forward tilt angle of 0~ 15 degrees, while women's pelvis is usually close to 15 degrees, and men's pelvis is usually smaller than women's. Under normal circumstances, people with lumbar fossa will have a slightly larger forward angle, which will make the hips more prominent visually and the body will show an S-shaped curve, so people with lumbar fossa will usually give people a better visual experience.

3. It is related to adipose tissue and muscle tissue. There is less adipose tissue and muscle tissue at the junction of sacrum and lumbar spine, and the skin is thin, which is prone to lumbar fossa.

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