how do you remember lumbar plexus

So the mnemonic you can use to remember the Lumbosacral plexus is:

• I – Iliohypogastric: T12, L1
• Insist – Ilioinguinal: L1
• Go – Genitofemoral nerve: L1, L2
• Learn – Lateral cutaneous nerve of thigh: L2, L3
• Femoral – Femoral nerve; L2, L3, L4
• Operation – Obturator nerve: L2, L3, L4.

Full Answer

How to remember the lumbar plexus mnemonic?

How to remember the Lumbar Plexus Mnemonic 1 All the Nerve roots increase in addition to the former except the Femoral and Obturator nerve. 2 Each nerve has two roots except Ilioinguinal, Femoral and Obturator. More ...

What are the six major branches of the lumbar plexus?

There are six major branches of nerves that make up the lumbar plexus: 1 Iliohypogastric nerve 2 Ilioinguinal nerve 3 Genitofemoral nerve 4 Lateral cutaneous nerve of the thigh 5 Femoral nerve 6 Obturator nerve More ...

Where is the lumbar plexus located?

However, note that the lumbar plexus arises from L1 to L4. That is the spinal nerves from the first to the fourth lumbar vertebrae. The fifth one (L5) contributes to what is known as the Lumbosacral plexus after joining with nerves from the sacral plexus.

What is the lumbar plexus and how does it affect memory?

The Lumbar plexus is a network of nerves arriving from the lumbar vertebrae. But do you want easy ways to keep its anatomy in your memory even in the long term? Then you’re in the right spot! In our previous Snacky medmonics, we discussed the Glycogen storage diseases and their mnemonics.

How do you remember the sacral plexus?

0:237:16Spinal levels of the sacral plexus branches mnemonic - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we start with four we go for five one and then we shift our frame of three by one number. So nextMoreSo we start with four we go for five one and then we shift our frame of three by one number. So next will be five one two then we shift.

What is the lumbar plexus?

The lumbar plexus is an essential collection of nerves that arise from mostly the lumbar spinal cord. The term plexus refers to a “web” of nerves that is created just lateral to where T12-L5 exit the spinal cord via intervertebral foramina.

What are the 3 branches of the lumbar plexus?

The nerves that arise from the lumbar plexus are listed below, from superior to inferior.The iliohypogastric nerve is created from spinal levels T12 and L1. ... The ilioinguinal nerve derives from a branch of the L1 spinal nerve. ... The genitofemoral nerves arise from the superior aspects of L1 and L2 spinal nerves.More items...

What does plexus mean in anatomy?

A nerve plexus is a network of intersecting nerves; multiple nerve plexuses exist in the body. Nerve plexuses are composed of afferent and efferent fibers that arise from the merging of the anterior rami of spinal nerves and blood vessels.

What is lumbar and sacral plexus?

The lumbosacral plexus is a network of nerve fibers, derived from the roots of lumbar and sacral spinal nerves that branch out to form the nerves supplying the lower limb.

What are the 5 lumbar nerves?

The iliohypogastric (L1), ilioinguinal (L1), and genitofemoral (L1-L2) nerves originate from the cranial portion of the lumbar plexus. The lateral femoral cutaneous (L2-L3), obturator (L2-4) and femoral (L2-L4) nerves originate from the caudal part.

Which nerve is the largest in the body?

Sciatic NerveSciatic Nerve and Sciatica. The sciatic nerve is the longest, largest nerve in your body. Your sciatic nerve roots start in your lower back and run down the back of each leg. Sciatica is the pain or discomfort if your sciatic nerve gets compressed or pinched.

Is the sciatic nerve part of the lumbar plexus?

The sciatic nerve is formed in the lower spine by the combination of motor and sensory fibers from spinal nerves L4 to S3. These spinal nerves belong to a larger group of nerves in the lower spine called the lumbosacral plexus.

What is the function of a plexus?

Bundles of nerves that form a plexus communicate information to your brain about pain, temperature, and pressure. These nerve plexuses also send messages from the brain to the muscles, allowing for movement to occur.

What happens if the lumbar plexus is damaged?

Malfunction of the lumbosacral plexus causes pain in the lower back and leg as well as weakness and loss of sensation in all or part of a leg (such as the foot or calf). Recovery depends on the cause.

What causes lumbar plexus pain?

The most frequent causes are high-energy trauma, sports injuries, penetrating trauma, and surgery that results in damage to the plexus. In particular, injuries that cause damage between the spinal cord and spinal ganglion (proximal) lead to severe pain.

What do the lumbar nerves control?

Nerves of the lumbar spine The nerves run down from your lower back and merge with other nerves to form a network of nerves that control pain signals and the movements of your lower limbs. L1 spinal nerve provides sensation to your groin and genital area and helps move your hip muscles.

Where does the lumbar plexus originate?

The lumbar plexus originates from the anterior rami of spinal nerves L1-L4 and is formed largely within the posterior aspect of the psoas major muscle. The anterior ramus of spinal nerve T12 contributes to the formation of the lumbar plexus via the dorsolumbar nerve, which joins the anterior ramus of spinal nerve L1. Together, these roots (T12, L1) form a common trunk which gives rise to the iliohypogastric and ilioinguinal nerves. The anterior rami of L1 and L2 each give rise to a branch, which go on to merge with one another to form the genitofemoral nerve.

Which nerve is the first branch of the lumbar plexus?

The iliohypogastric nerve is the first branch of the lumbar plexus. It is formed primarily by the L1 nerve roots, with contributions from the subcostal (T12) nerve. This nerve is inferior to the subcostal nerve and courses inferolaterally towards the anterior aspect of the iliac crest. It gives anterior and lateral branches ...

What nerves are located in the anterior and posterior divisions of the spinal rami?

As the spinal rami of spinal nerves L2 - L4 course away from the lumbar vertebrae, they divide into anterior (ventral) and posterior (dorsal) divisions. The anterior divisions merge with one another to form the obturator nerve. Sometimes, the anterior divisions of L3 and L4 anterior rami may give branches that unite to form an accessory obturator nerve. Fibers from the posterior divisions, on the other hand, mainly unite to form the femoral nerve. The posterior divisions of L2 and L3 also give rise to branches that merge to form the lateral femoral cutaneous nerve.

Which spinal nerve joins the anterior rami of the sacral spinal nerves?

The anterior ramus of L4 gives rise to an additional branch which goes on to merge with the anterior ramus of L5 spinal nerve to form the lumbosacral trunk. The lumbosacral trunk joins the anterior rami of sacral spinal nerves S1-S4 in the pelvis to form the sacral plexus. Thus, this branch to the lumbosacral trunk serves as the point of union between the lumbar and sacral plexuses.

Which nerve is medial to the iliac crest?

At the level of the iliac crest onwards, the nerve lies medial to the iliohypogastric nerve . The ilioinguinal nerve assists the iliohypogastric nerve in supplying the aforementioned structures. Fibers from the posterior division of L1 leave the first branch of the lumbar plexus to innervate the superior part of psoas major muscle.

Which plexus gives rise to several branches which supply various muscles and regions of the posterior abdominal wall and lower limb?

The lumbar plexus gives rise to several branches which supply various muscles and regions of the posterior abdominal wall and lower limb . These branches include the iliohypogastric , ilioinguinal , genitofemoral , lateral femoral cutaneous , femoral  and obturator nerves . In addition, the lumbar plexus gives off muscular branches from its roots, a branch to the lumbosacral trunk  and occasionally an accessory obturator nerve.

What is the function of the lower limb?

The lower limbs have the tremendous responsibility of mobilizing and stabilizing the human body. Muscles of the pelvic region, posterior abdominal wall, and the fifty-nine muscles of the lower limb, as well as their corresponding joints, are innervated by branches of the lumbosacral plexus. These nerve fibers originate from ...

What is the lumbar plexus?

The lumbar plexus is a complex neural network formed by the lower thoracic and lumbar ventral nerve roots (T12 to L5) which supplies motor and sensory innervation to the lower limb and pelvic girdle.

What is the best treatment for lumbar plexus pain?

Non-steroidal anti-inflammatory drugs (NSAIDs), narcotics, and anti-neuropathic pain medications can be used to treat this condition. It is crucial as physical therapists to have a strong knowledge base and understanding of the lumbar plexus in the treatment of our orthopedic patients.

What happens if you get a herniated disc in your lumbar plexus?

Lumbar disc herniation can result in occlusion of the intervertebral foramen, which can compress lumbar spinal nerves proximal to their entrance to the lumbar plexus.

What is the plexus?

The plexus exists bilaterally. Course: formed within the substance of the psoas major muscle, anterior to the lumbar transverse processes. Allows nerves to combine with different levels to create multiple functioning nerves that serve to innervate various structures.

Which nerve is the largest in the lumbar plexus?

The femoral nerve ranks as the largest nerve that arises from the lumbar plexus. It is created from lumbar spinal nerves L2, L3, and L4. See link. The obturator nerve arises from L2, L3, and L4 spinal nerves. It provides the primary motor supply to the medial (adductor) muscle compartment of the thigh.

Where do patients with lower extremity deficits come from?

Patients presenting with only lower extremity deficits may be initiated from the lumbar plexus, and not the extremity.

Can lumbar plexus nerves be damaged?

Commonly, peripheral nerves and the lumbar plexus can suffer damage due to trauma. A common and significant nerve compression syndrome can arise from the lateral femoral cutaneous nerve, which is a branch of the lumbar plexus.

What is the lumbar plexus?

The lumbar plexus is a nerve plexus (a network of intersecting nerves) in the body’s lumbar region.

Where is the lumbar plexus located?

The lumbar plexus is embedded in the muscle psoas major, passing in front of the hip joint. It works with the sacral plexus to give autonomic, motor, and sensory fibers to the lower extremities and to the body’s gluteal and inguinal (groin) regions.

Which nerves form the lumbar plexus?

The loops of communication between the first three lumbar levels and the greater portion of the fourth lumbar nerve form the lumbar plexus.

Which nerve divides into ventral and dorsal divisions?

The upper and bigger branch splits into the ilioingual and iliohypogastric nerves. The lower branch unites with the second lumbar nerve (L2), which – along with L3 and L4 – splits into ventral and dorsal divisions.