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Temporomandibular joint

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TEMPOROMANDIBULAR JOINT TEMPOROMANDIBULAR JOINT Temporomandibular joint is a Condyloid and Synovial joint. It is a joint between the temporal bone (mandibular fossa) and the mandibular condyle. The main components are the joint capsule, articular disc, mandibular condyles, articular surface of the temporal bone, temporomandibular ligament, stylomandibular ligament, sphenomandibular ligament, and lateral pterygoid muscle. CAPSULE AND ARTICULAR DISC […]

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Facial Nerve Reanimation

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Facial Nerve Reanimation MANAGEMENT OF FACIAL NERVE PARALYSIS: Patients with delayed-onset: Unless medically contraindicated , patients are placed on a 2-week course of systemic corticosteroids and are observed. Patients with complete paralysis of immediate onset These patients are tested with the Hilger nerve stimulator between days 3 and 7 after injury. Immediate onset paralysis due

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Geniculate ganglion

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GENICULATE GANGLION GENICULATE GANGLION The geniculate ganglion is an L-shaped collection of fibers and sensory neurons of the facial nerve located in the facial canal of the head. FIBERS: It receives fibers from the motor, sensory, and parasympathetic components of the facial nerve and sends fibers that will innervate the lacrimal glands, submandibular glands, sublingual glands, tongue, palate, pharynx, external auditory meatus, stapedius,

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Facial Nerve: Functional Components

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Facial Nerve: Functional Components Functional Components: Special Visceral Efferent/Branchial Motor General Visceral Efferent/Parasympathetic General Somatic Afferent/Sensory Special Visceral Afferent/Taste General Visceral Afferent/sensory from glands  Special Visceral Efferent/Branchial Motor: Premotor cortex →motor cortex →corticobulbar tract→bilateral facial motor nuclei (pons) →facial muscles Stapedius, stylohyoid, posterior digastric, buccinator General Visceral Efferent/Parasympathetic: The brainstem general visceral efferent column nuclear groups

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Facial vii nerve

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FACIAL (VII) NERVE FACIAL NERVE The facial nerve is the seventh cranial nerve. Mixed nerve consists of a motor and a sensory root. Sensory part is frequently described under the name of nervous intermedius (nerve of Wrisberg or pas intermedii of Wrisberg). It emerges from the brainstem between the pons and the medulla.  It controls the muscles of facial expression, and functions in the conveyance of taste sensations

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Extraocular muscles

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Extraocular muscles EXTRAOCULAR MUSCLES The motor units are small, with only from 5 to 18 muscle fibers contact by each motor nerve. Anteroposterior stability of eyeball is provided by Superior oblique, Superior rectus & Orbital fat. The sheath of inferior rectus is thickened & blends with the sheath of inferior oblique as well as with check ligament, forming a hammock-like support for eye, suspensory

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Muscles of mastication

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MUSCLES OF MASTICATION Medicoapps Masterclass on Muscles of Mastication   Don’t Forget to Solve all the previous Year Question asked on MUSCLES OF MASTICATION Click Here to Start Quiz MUSCLES OF MASTICATION INTRODUCTION: Mastication- four muscles of mastication (or musculi masticatorii) – adduction and lateral motion of the jaw. Muscles associated hyoid  also responsible for opening the jaw Embryological origin

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Bells palsy

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BELL’S PALSY BELL’S PALSY: Facial hemiparesis as a result of a lesion to the facial nerve: cranial nerve VII. INTRODUCTION:  Bell’s palsy is a condition that causes a temporary weakness or paralysis of the muscles in the face.  It can occur when the nerve that controls your facial muscles becomes inflamed, swollen, or compressed. The condition causes one side of face to droop or become

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Muscles of facial expression

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MUSCLES OF FACIAL EXPRESSION MUSCLES OF FACIAL EXPRESSION FACIAL MUSCLES The facial muscles are a group of striated skeletal muscles innervated by the facial nerve (cranial nerve VII)  which control facial expression. These muscles are also called mimetic muscles. Develop from mesoderm. The facial musculature is fairly unique. They include the only somatic muscles in the body attached on

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