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What is formed by the spinal nerves exiting the cord from the level of L4 to S4?
Spinal nerves exiting the spinal canal between L4 and S4 collectively make up the sacral plexus.
Spinal nerves exiting the cord from the level of L4 to S4?
Spinal nerves exiting the cord from the level of L4 to S4 supply motor and sensory innervation to the lower extremities, including the buttocks, thighs, legs, and feet. They contribute to functions such as walking, standing, and bladder control. Damage to these nerves can lead to symptoms such as weakness, numbness, and pain in the lower body.
The major plexuses of the spinal cord?
The major plexuses of the spinal cord are the cervical plexus (C1-C5), brachial plexus (C5-T1), lumbar plexus (L1-L4), and sacral plexus (L4-S4). These plexuses are networks of nerves that supply motor and sensory function to various regions of the body.
What vertebra is least likely to cause a spinal cord injury if fracture?
L4
What do the spine levels L1 - L4 control?
Flexion of the thighs
What level of the spinal cord is damaged to cause urinary incontinence?
Parasympathetic nerves from the S2, S3 and S4 levels of your spinal cord cause the upper part of your bladder to contract and your bladder neck to relax, assisting in the process of micturition (urination). If these are damaged you will have bladder control problems.
Which spinal region lacks autonomic preganglionic neurons?
The thoracic region of the spinal cord lacks autonomic preganglionic neurons. Autonomic preganglionic neurons are found in the intermediolateral cell columns of the spinal cord at the thoracolumbar (T1-L2) and sacral (S2-S4) levels.
What does diffuse disc bulge at L4-L5 causing mild narrowing of bilateral foramina indicative of?
What the radiology report indicates is that you've got a herniated disk at the L4/5 vertebrae, which is pressing forward into the spinal cord passageway. The foramen is the narrow passage in the vertebrae where the spinal cord runs through.
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.
What is marginal osteophytes at L4 and L5 with reduced disc space?
MR imagemorphology is in favour of early marginal osteophytes at few levels. mildbroad disc bulge at l4-l5 causing minimal thecal sac indentation
What does L4-5 Annular bulge touching thecal sac resulting in moderate central stenosis with bilateral centrally located L5 neural abutment mean?
There's a bulge pushing through the ring holding the vertebral disk between L4 and L5. The bulge is narrowing the opening for the spinal cord somewhat, and is also touching both sides of the nerves coming off the spinal cord at L5.
Why does your penis float to the top of the water?
No - take a bath and see for yourself. yes- took a bath with boyfriend and there was definently floatation!
