What is the anatomy of the low back? (Continued).
The discs are pads that serve as "cushions" in between the private vertebral bodies. Each disc is created like a jelly donut with a main, softer part (nucleus pulposus) and a surrounding, company outer ring (annulus fibrosus). The central portion of the disc is capable of rupturing (herniating as in a herniated disc) through the outer ring, triggering inflammation of surrounding nervous tissue and sciatica as described listed below.
The nerves that provide sensation and stimulate the muscles of the low back along with the lower extremities (the thighs, legs, feet, and toes) all leave the lumbar spine through bony portals, each of which is called a "foramen.".
Many muscle groups that are responsible for flexing, extending, and rotating the waist, along with moving the lower extremities, connect to the back spine through tendon insertions.
The aorta and blood vessels that transport blood to and from the lower extremities pass in front of the lumbar spinal column in the abdominal area and hips. Surrounding these blood vessels are lymph nodes (lymph glands) and tissues of the uncontrolled nerve system that are important in maintaining bladder and bowel control.
The uterus and ovaries are very important pelvic structures in front of the pelvic location of ladies. The prostate gland is a considerable pelvic structure in men. The kidneys are on either side of the back of the lower abdomen, in front of the back spine.
The skin over the back area is provided by nerves that originate from nerve roots that exit from the back spinal column.
Anatomy of the back.
When we stand, the lower back is working to support the weight of the upper body.Source: istock.
What is the function of the low back?
The low back, or back location, serves a number of important functions for the human body. These functions consist of structural assistance, movement, and defense of specific body tissues.
When we stand, the lower back is operating to support the weight of the upper body. When we flex, extend, or turn at the waist, the lower back is involved in the motion. Injury to the structures important for weight bearing, such as the bony spinal column, muscles, tendons, and ligaments, often can be discovered when the body is standing set up or utilized in different movements.
Protecting the soft tissues of the nervous system and spine along with neighboring organs of the pelvis and abdomen is a critical function the back spinal column and surrounding muscles of the low back.