Nerve

The fifth cranial nerve out of 12 is known as the trigeminal nerve. Cranial nerves are located in the brain and each have a different function. The trigeminal nerve is located in between the oculomotor nerve and the facial nerve. The trigeminal nerve performs sensor functions that involve the teeth, tongue, nose, and eyes and is covered by a myelin sheath. A myelin sheath is the protective coating that is usually found around nerves. Trigeminal neuralgia also known as TN, is a painful disease that

Cranial nerves are components of the peripheral nervous system; connecting directly to the brain. The twelve pairs of cranial nerves are named relating to their distribution and function; the number assigned to a cranial nerve corresponds to the nerve’s position along the longitudinal axis of the brain, beginning at the cerebrum. Each cranial nerve is classified by their primary function; as a sensory nerve, motor nerve, or a mixed nerve - of which contains a combination of sensory and motor nerves

There are many structures in the eye, some of which include; the retina, rods and cones, the macula, the central fovea, the cranial nerve, the optic chiasm and the lateral geniculate nucleus. The retina is a layer at the back of the eye containing cells that are sensitive to light, it triggers impulses through the optic nerve. Rods and cones are specialized receptors which sense light and color. The macula is an area about the diameter of a pencil head and is close to 100 times more sensitive to

The Brain and Cranial Nerves One of the most complex and fascinating things in the human body is the brain. The body is "capable of almost everything, but it would not be possible, without the brain receiving information, and analyzing the information." The brain is aware of its surroundings, via input from the spinal cord and cranial nerves. Cranial nerves with sensory functions allow us to smell and see. Nerves with both motor and sensory functions are responsible for everything from tasting

Nerve injuries of the shoulder are an unusual cause of shoulder pain and they result from a variety of causes including trauma (1). Traditionally, the diagnosis of muscle denervation was based on clinical findings, electromyography, and nerve conduction studies. However, electro-physiologic studies do not determine exactly the site of muscle denervation (2). Magnetic resonance (MR) imaging has an important role in detection and characterization of pathologic conditions of skeletal muscles that cause

Facial Nerve Tumour Diagnostic Reasoning Facial never tumours are exceedingly rare (Marzo, Zender & Leonetti, 2009). These tumours present with facial twitching, hearing loss, dizziness, loss of balance, and unilateral facial weakness (Marzo, Zender & Leonetti, 2009). These are strikingly similar symptoms that Ingrid presented with. Major differences include a slow onset of symptoms and the facial weakness is intermittent and recurring (Marzo, Zender & Leonetti, 2009). It would need to be taken into

The Brain and Cranial Nerves      One of the most complex and fascinating things in the human body is the brain. The body is “capable of almost everything, but it would not be possible, without the brain receiving information, and analyzing the information.”      The brain is aware of its surroundings, via input from the spinal cord and cranial nerves. Cranial nerves with sensory functions allow us to smell and see. Nerves with both motor and sensory

Oculomotor (III), trochlear (IV), Abducens (VI) cranial nerves Although each of these nerves control separate extraocular muscles, they are normally examined together due to their close functional interrelationships. • Look Similar to other cranial nerve examination, start with inspection of the eyes. Look at - The position of the head position: If diplopia is present, the head turned or tilted to minimize double vision. - Inspect for ptosis and eye position. - Ask the child to look at an

In FSNB group sciatic nerve is blocked first. The operator stand on the side that is to be blocked, facing the patient with the ultrasound machine across the other side of the patient.The patient was put in the supine position, the hip was abducted, externally rotated, and the knee flexed then exposure of the calf and foot. With the patient in the proper position for blocking sciatic nerve by anterior approach, the doppler curved probe (SonoScape®, SSI-6000, China) was placed 10 cm distal to

Nerve conduction studies are often utilized by clinician to diagnose patients suffering neuromuscular diseases that cannot be determined by neurological examination alone. Nerve conduction velocity (NCV) measures the speed of conduction of an electrical impulse that travels through a nerve. It is an expression of the physiological state of the nerve itself. In order to determine the NCV of the Ulnar nerve, a stimulator is initially used to depolarize the nerve. A small electrical stimulus is applied