Understanding Pins and Needles: What's Really Going On?

The video explains the sensation known as pins and needles, medically termed paresthesia. It describes the causes, focusing on transient paresthesia due to pressure on nerves, particularly the sciatic nerve. The anatomy of the sciatic nerve and its branches is detailed, explaining how pressure can lead to a temporary shutdown of nerve signals, resulting in numbness. The video also covers the recovery process, where the nerve 'reboots,' causing a rush of signals interpreted as pain or tingling. The potential for long-term damage in certain scenarios is also discussed.

What is the common term for the sensation described as 'pins and needles'?

• Nerve paralysis

• Leg cramp

• Leg falling asleep

• Muscle spasm

What is the medical term for the sensation of pins and needles?

• Paralysis

• Paresthesia

• Neuralgia

• Myalgia

Which type of paresthesia is short-lasting and often caused by awkward posture?

• Chronic

• Acute

• Persistent

• Transient

Which nerve is primarily involved in the sensation of transient paresthesia?

• Ulnar nerve

• Sciatic nerve

• Femoral nerve

• Radial nerve

What are the two branches of the sciatic nerve?

• Radial and ulnar nerves

• Femoral and tibial nerves

• Common peroneal and tibial nerves

• Median and axillary nerves

What happens to the nerve when significant pressure is applied?

• It multiplies

• It shuts down

• It shortens

• It strengthens

What can prolonged pressure on a nerve potentially cause?

• Muscle growth

• Long-lasting damage

• Improved circulation

• Increased sensitivity