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What nerves arise from the brachial plexus?
Axillary nerve- supplies the deltoid and teres minor muscles and the skin of the shoulderRadial nerve- controls the extensor muscles of the upper limb as well as the skin over the posterior and lateral margins of the armMusculocutaneous nerve- supplies the flexor muscles of the upper limb to the skin of the lateral armMedian nerve- innervates the flexor muscles of the forearm and digits, the pronator muscles, and the lateral skin of the hand.Ulnar nerve- controls the flexor carpi ulnaris muscle of the forearm, other muscles of the hand, and the medial skin of the hand
The Nerve plexus that supplies the diaphragm and thus causes respiratory damage is the plexus?
The phrenic nerve plexus supplies the diaphragm and controls its movement during respiration. Damage to this plexus can lead to impaired breathing and respiratory function.
Which nerve of the sacral plexus supplies an extensor of the hip?
Inferior gluteal nerve
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.
What nerve plexus is the Ulnar nerve in?
The Ulnar nerve is located in the joint of the elbow. It is the largest unprotected nerve in the human body, therefore injuries are very common. It is also commonly referred to as the "Funny Bone".
Which nerve plexus contains the femoral nerve?
The femoral nerve is part of the lumbar plexus. It arises from the anterior divisions of the L2 to L4 spinal nerves. The lumbar plexus mostly innervates the lower limb muscles and skin.
Which plexus supplies motor movement to the posterior of legs and thighs?
The sacral plexus supplies motor movement to the posterior of the legs and thighs. It is formed by the lumbosacral spinal nerves and gives rise to nerves like the sciatic nerve, which innervates many muscles in this region.
What action does the femoral nerve do?
Nerves do not have actions. Muscles do, but nerves go to certain receptors. The femoral nerve is the largest in the lumbar plexus and divides into many branches, and supplies the thigh muscles and leg and skin cutaneous receptors (feeling).
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.
Which spinal plexus gives rise to the phrenic nerve and what organ does this nerve supply?
The phrenic nerve arises from the cervical plexus (C3-C5) and supplies the diaphragm, which is the primary muscle involved in breathing.
The lumbosacral plexus contains a nerve that that branches to thigh muscles and ultimately the feet. What is its name?
It is known as the sciatic nerve.
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.
