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The mylohyoid nerve (or nerve to mylohyoid) is a mixed nerve of the head. It is a branch of the inferior alveolar nerve . It provides motor innervation the mylohyoid muscle , and the anterior belly of the digastric muscle .
Mylohyoid: by its own nerve, a branch of the inferior alveolar (from the mandibular division of trigeminal nerve), which arises just before the parent nerve enters the mandibular foramen, pierces the sphenomandibular ligament, and runs forward on the inferior surface of the mylohyoid, supplying it and the anterior belly of the digastric.
Accessory mylohyoid muscles have been seen in some people, which have the same attachments, nerve supply, and function. [6] The mylohyoid muscle may also be split into an anterior portion and a posterior portion, with the sublingual gland occupying the space between these portions. [7] An area of herniation of the sublingual gland, blood ...
Neurogenic shock may be caused by severe brain injury. [6] However, in case of increased intracranial pressure , according to the Cushing triad , blood pressure will be increased (unless decreased from hypovolemia ), respirations will be irregular and bradycardia will also be a feature.
Neurapraxia is the least severe form of nerve injury, with complete recovery. In this case, the axon remains intact, but there is myelin damage causing an interruption in conduction of the impulse down the nerve fiber. Most commonly, this involves compression of the nerve or disruption to the blood supply . There is a temporary loss of function ...
Primary injury occurs at the moment of trauma and includes contusion, damage to blood vessels, and axonal shearing, in which the axons of neurons are stretched and torn. [1] The blood brain barrier and meninges may be damaged in the primary injury, and neurons may die. [7] Cells are killed in a nonspecific manner in primary injury. [8]
Multiple sclerosis (MS) is a chronic disease of the nervous system that can lead to muscle weakness, vision loss, and paralysis. It occurs when the immune system attacks the myelin sheath that ...
The major tissues affected are nerves and muscles, where irreversible damage starts to occur after 4–6 hours of cessation of blood supply. [4] Skeletal muscle, the major tissue affected, is still relatively resistant to infarction compared to the heart and brain because its ability to rely on anaerobic metabolism by glycogen stored in the cells may supply the muscle tissue long enough for ...