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  2. Lumbar plexus - Wikipedia

    en.wikipedia.org/wiki/Lumbar_plexus

    The lumbar plexus is a web of nerves (a nerve plexus) in the lumbar region of the body which forms part of the larger lumbosacral plexus.It is formed by the divisions of the first four lumbar nerves (L1-L4) and from contributions of the subcostal nerve (T12), which is the last thoracic nerve.

  3. Sciatic nerve - Wikipedia

    en.wikipedia.org/wiki/Sciatic_nerve

    The lumbosacral trunk from the L4 and L5 roots descends between the sacral promontory and ala, and the S1 to S3 roots emerge from the ventral sacral foramina. These nerve roots unite to form a single nerve in front of the piriformis muscle. The nerve passes beneath the piriformis and through the greater sciatic foramen, exiting the pelvis.

  4. Lumbar vertebrae - Wikipedia

    en.wikipedia.org/wiki/Lumbar_vertebrae

    They form the lower part of the back in humans, and the tail end of the back in quadrupeds. In humans, there are five lumbar vertebrae. The term is used to describe the anatomy of humans and quadrupeds, such as horses, pigs, or cattle. These bones are found in particular cuts of meat, including tenderloin or sirloin steak.

  5. Nerve plexus - Wikipedia

    en.wikipedia.org/wiki/Nerve_plexus

    Ventral rami of L4–S3 with parts of L4 and S4 spinal nerves form the sacral plexus. It is located on the posterior wall of pelvic cavity (pelvis minor). Nervi of the plexus innervate the perineal region, buttocks and the lower limb.

  6. Transport layer - Wikipedia

    en.wikipedia.org/wiki/Transport_layer

    The protocols in use today in this layer for the Internet all originated in the development of TCP/IP. In the OSI model the transport layer is often referred to as Layer 4, or L4, [2] while numbered layers are not used in TCP/IP. The best-known transport protocol of the Internet protocol suite is the Transmission Control Protocol (TCP).

  7. AOL Help

    help.aol.com

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  8. Obturator nerve - Wikipedia

    en.wikipedia.org/wiki/Obturator_nerve

    The obturator nerve is responsible for the sensory innervation of the skin of the medial aspect of the thigh.. The nerve is also responsible for the motor innervation of the adductor muscles of the lower limb (external obturator, [4] adductor longus, adductor brevis, adductor magnus, gracilis) and the pectineus (inconstant).

  9. How To Fill Out a W-4 Form for 2025 - AOL

    www.aol.com/fill-w-4-form-2024-154830589.html

    The W-4 form is an Employee’s Withholding Allowance Certificate designed to let your employer know how much of your income to withhold for federal taxes. You should fill out a new W-4 when you ...