English name. In English, the name Joanna means-from the name joanne. Other origins for the name Joanna include-English, Hebrew, French.The name Joanna is most often used as a girl name or female name. English Name Meaning-from the name joanne.Origin-England.ther origins for the name Joanna include-English, Hebrew, French.The name Joanna is most often used as a girl name or female name.
The sacral nerves are the five pairs of spinal nerves which exit the sacrum at the lower end of the vertebral column. The roots of these nerves begin inside the vertebral column at the level of the L1 vertebra, where the cauda equina begins, and then descend into the sacrum.
Sciatic nerve. The sciatic supplies nearly the whole of the skin of the leg, the muscles of the back of the thigh, and those of the leg and foot. It is the largest nerve in the body, measuring 2 cm in breadth, and is also the continuation of the flattened back of the sacral plexus.he sacral plexus is derived from the anterior rami of spinal nerves L4, L5, S1, S2, S3, and S4. Each of these anterior rami gives rise to anterior and posterior branches. The anterior branches supply flexor muscles of the lower limb, and posterior branches supply the extensor and abductor muscles.