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The largest branch of the sacral plexus is the sciatic nerve, the thickest and longest nerve in the body.

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What is the nerve plexus from which the sciatic nerve originates from?

The sciatic nerve originates from the sacral plexus, specifically from the nerve roots L4 to S3. It is the largest nerve in the body and supplies the lower limb with both motor and sensory functions.


A fall or improper administration of an injection to the buttocks may injure a nerve of this plexus?

sacral plexus


Which plexus gives rise to the sciatic nerve?

The sacral plexus gives rise to the sciatic nerve. It is formed by the ventral rami of spinal nerves L4-S4 and is the largest nerve in the body.


Does the obturator nerve branch from the sacral plexus?

false


Which nerve of the sacral plexus supplies an extensor of the hip?

Inferior gluteal nerve


What nerve serves the foot?

Sciatic Nerve The Largest nerve in human body. A sensory and motor nerve originating in the sacral plexus and running through the pelvis and upper leg.


Which plexus contains the foot and the leg?

The lumbar plexus contains nerve fibers that innervate the leg, and the sacral plexus contains nerve fibers that innervate the foot. The lumbar plexus arises from the lower spinal cord levels, while the sacral plexus arises from the sacral spinal cord levels.


What is the thickest cranial nerve?

The scaitic nerve is the longest and largest nerve.


What major nerves arise from the sacral?

The nerves that arise from the lumbar plexus are femoral, obturator, lateral femoral cutaneous, genitofemoral, illoinguinal and illohypogastric nerve. As part of lumbosacral plexus, it is the nervous plexus that is found in the lumbar region.


What are the four nerve plexuses?

Cervical: C1 - C5Innervates muscles of neck and extend into thoracic cavity, where they control diaphragmatic muscles. Major nerve: Phrenic...which provides entire nerve supply to diaphragm.Brachial: C5-T1Innervates pectoral girdle and upper limbs. Major nerves: Radial nerve, median nerve, ulnar nerve.Lumbar: T12 - L4Innervates pelvic girdle and lower limbs. Major nerves: Genitofemoral nerve, lateral femoral cutaneous nerve, and femoral nerve.Sacral: L4-S5Innervates pelvic girdle and lower limbs. Major nerves: Sciatic nerve (which branches into tibial and fibular nerves) and pudendal nerve.


Is the sciatic nerve located in the brachial plexus?

No, the sciatic nerve is not located in the brachial plexus. The sciatic nerve is a large nerve that originates in the lower back and runs down the back of each leg, while the brachial plexus is a network of nerves in the shoulder region that innervates the upper limb.


When Trauma to a nerve of this plexus may cause a wrist drop?

Trauma to the radial nerve of the brachial plexus can cause wrist drop. This nerve controls the muscles responsible for wrist extension. Damage to the radial nerve can lead to weakness or paralysis of these muscles, resulting in the inability to lift the wrist and extend the hand.