Lumbosacral Plexus - MEDIUM

The lumbosacral plexus is a network of nerves formed by which of the following?

What are the two main parts into which the lumbosacral plexus is typically divided for examination and study?

Given its anatomical location, which of the following muscles is in close proximity to the sacral plexus?

Which spinal nerve segments primarily contribute to the formation of the lumbar plexus?

Which of the following nerves that originate from the lumbar plexus innervates the skin of the suprapubic and inguinal regions?

A patient reports pain and altered sensation along the anterolateral surface of their thigh. Which nerve, originating from the lumbar plexus, is most likely affected?

Which of the following best describes the path of the genitofemoral nerve after it runs inferiorly along the psoas muscle?

The femoral nerve is known to innervate the anterior thigh muscles. In addition to motor function, which cutaneous region does it supply through its branches?

A patient has difficulty adducting the thigh. Which nerve, originating from the lumbar plexus, is most likely affected?

The obturator nerve runs inferiorly on its lateral border and passes through which foramen to reach its target muscles?

Which nerve is formed by the union of part of the ventral ramus of L4 and the ventral ramus of L5?

Which of the following nerve roots contribute to the formation of the sacral plexus?

Which of the following nerves that originates from the sacral plexus innervates the gluteus medius, gluteus minimus, and tensor fasciae lata muscles?

A patient cannot abduct their thigh. Which of the following nerves may be damaged?

Which of the following nerves stems from the sacral plexus and innervates the gluteus maximus muscle?

Where does the sciatic nerve typically divide into its two major branches?

Which two nerves arise from the sciatic nerve?

What part of the lower limb is supplied by the tibial nerve?

Which of the following nerves, arising from the sacral plexus, innervates the external anal sphincter and provides sensory fibers to the skin of the anal region?

After exiting the pelvis, the pudendal nerve re-enters through which foramen?

The common peroneal (fibular) nerve divides into two branches around the lateral part of the knee joint. These are the superficial and deep peroneal nerves. What does the superficial peroneal nerve innervate?

A person has lost sensation on the medial aspect of their buttock. Which nerve has most like been damaged?

A patient presents with an inability to plantarflex the foot and difficulty with toe flexion. Sensation is diminished on the plantar surface of the foot. Which nerve is MOST likely affected?

Following a pelvic fracture, a patient experiences weakness in hip adduction and sensory loss on the medial thigh. What nerve is MOST likely injured?

A person experiences issues with dorsiflexion of the foot. This indicates which nerve may have damage?

A 60-year-old patient reports experiencing numbness and tingling in the lateral aspect of their leg and dorsum of their foot. Which nerve is MOST likely involved?

Which of the following structures carries preganglionic parasympathetic fibers to the hypogastric (pelvic) plexus?

Following a motor vehicle accident, a patient has lost all sensation in the skin covering the perineum. Function of the bowel and bladder are intact. Which nerve root or nerve is MOST likely damaged?

What is the origin of the sural nerve?

What muscles are innervated by the obturator nerve?

Which of the following nerve roots contribute to the ventral rami of the coccygeal plexus?

The medial and lateral plantar nerves are terminal branches of what nerve?

The muscles in the anterior compartment of the leg are innervated by the deep peroneal nerve. What portion of the leg and foot does this nerve supply?

Which nerve is responsible for supplying the skin on the posterior aspect of the thigh?

Pelvic splanchnic nerves arising from which roots of the sacral plexus?

A branch of the femoral nerve, the saphenous nerve, is responsible for supplying which part of the leg and foot?

The lumbosacral plexus is essential for motor and sensory innervation of the lower limb. Injury to which of the following nerve components would MOST likely result in both difficulty with hip flexion and impaired sensation of the anterior thigh?

What is the most accurate description of the lumbosacral trunk's formation?

Which of the following accurately describes the path of the superior gluteal nerve after it exits the pelvis?

A patient reports sensory deficits on the medial aspect of the leg and foot. Which nerve is MOST likely involved?

If a patient is experiencing pain when flexing their hip, which nerve is MOST likely the cause of pain?

Which of the following is TRUE regarding the contribution of the ventral ramus of T12 to the lumbar plexus formation?

A patient exhibits weakness in thigh adduction accompanied by sensory loss on the medial thigh. Considering these findings, where is the lesion MOST likely located?

If the common peroneal nerve is severed, what functional deficit would MOST likely be observed?

Which nerve is responsible for innervating the muscles in the lateral compartment of the leg and supplies skin on the lower half of the anterolateral leg and most of the dorsum of the foot?

If a lesion affects the nerve that passes through the greater sciatic foramen inferior to the piriformis, which muscle's function would be MOST directly affected?

Which of the following nerves, originating from the sacral plexus, provides primary innervation to the perineal muscles and sensory supply to the skin of the anal and genital regions?

A patient with difficulty in hip abduction MOST likely suffered damage to which nerve or muscle group?

After exiting the pelvis, the pudendal nerve traverses which of the following anatomical pathways?

Which nerve provides sensory innervation to the skin on the posterior aspect of the thigh?

Pelvic splanchnic nerves carry which type of fibers to the hypogastric plexus?

The coccygeal plexus is formed by the union of which of the following?