The trochlear nerve is unique among the cranial nerves in several respects: It is the smallest nerve in terms of the number of axons it contains. It has the greatest intracranial length.
Which nerve is the longest?
The sciatic nerve is the largest nerve in your body. It begins in your lower back and travels all the way down to the heel of your foot.
Which is the smallest cranial nerve *?
Smallest Cranial Nerve—> Trochlear.
What is the longest cranial nerve?
The vagus nerve (cranial nerve [CN] X) is the longest cranial nerve in the body, containing both motor and sensory functions in both the afferent and efferent regards.
What is the fifth nerve?
The trigeminal nerve (the fifth cranial nerve, or simply CN V) is a nerve responsible for sensation in the face and motor functions such as biting and chewing; it is the most complex of the cranial nerves.
Is sciatic nerve on right or left?
The five nerve roots come together to form a right and left sciatic nerve. On each side of your body, one sciatic nerve runs through your hips, buttocks and down a leg, ending just below the knee. The sciatic nerve then branches into other nerves, which continue down your leg and into your foot and toes.
What is the strongest nerve in human body?
Sciatic nerve, largest and thickest nerve of the human body that is the principal continuation of all the roots of the sacral plexus.
Which is the thickest cranial nerve?
The largest cranial nerve is trigeminal nerve. The smallest cranial nerve is abducens nerve. The thinnest cranial nerve is trochlear nerve.
What cranial nerve goes to the heart?
The vagus nerve, historically cited as the pneumogastric nerve, is the tenth cranial nerve or CN X, and interfaces with the parasympathetic control of the heart, lungs, and digestive tract. The vagus nerves are normally referred to in the singular.
Which cranial nerve has highest branches?
Vagus nerve has the highest number of branches.
Which side of the neck is the vagus nerve on?
On the right side, it arises from the trunk of the vagus as it lies beside the trachea. On the left side, it originates from the recurrent laryngeal nerve only.
What is the fattest cranial nerve?
The trigeminal nerve is the largest cranial nerve and is the great sensory nerve of the head and face, and the motor nerve of the muscles of mastication.
How do you test for cranial nerve 10?
The motor division of CN 9 & 10 is tested by having the patient say “ah” or “kah”. The palate should rise symmetrically and there should be little nasal air escape. With unilateral weakness the uvula will deviate toward the normal side because that side of the palate is pulled up higher.
What is the most painful nerve in the body?
Trigeminal Neuralgia
- Trigeminal neuralgia (TN), also known as tic douloureux, is sometimes described as the most excruciating pain known to humanity. …
- Magnetic resonance imaging (MRI) can detect if a tumor or MS is affecting the trigeminal nerve.
How do I calm my trigeminal nerve?
Many people find relief from trigeminal neuralgia pain by applying heat to the affected area. You can do this locally by pressing a hot water bottle or other hot compress to the painful spot. Heat a beanbag or warm a wet washcloth in the microwave for this purpose. You can also try taking a hot shower or bath.
What is the best painkiller for nerve pain?
The main medicines recommended for neuropathic pain include:
- amitriptyline – also used for treatment of headaches and depression.
- duloxetine – also used for treatment of bladder problems and depression.
- pregabalin and gabapentin – also used to treat epilepsy, headaches or anxiety.