A cervical fistula is a maldevelopment of the cervical viscera. This is a congenital damage. What is a cervical fistula? Cervical fistulas are associated with neck cysts. Medical professionals distinguish between lateral and median cervical fistulas or cervical cysts. While lateral fistulas are expressed in the lateral region of the neck, median neck fistulas develop … Cervical Fistula: Causes, Symptoms & Treatment
The constrictor pharyngis inferior muscle is the lower pharyngeal lacing muscle and contributes to speech and swallowing. Both of these tasks can be disrupted if the constrictor pharyngis inferior muscle fails, cramps, or is otherwise impaired. This is the case, for example, in nerve palsy or in the setting of a peritonsillar abscess. What is … Musculus Constrictor Pharyngis Inferior: Structure, Function & Diseases
The constrictor pharyngis medius muscle is a pharyngeal muscle and consists of two parts. It is responsible for constricting the pharynx of the mouth, thereby pushing food or fluid toward the esophagus (food pipe). Functional limitations of the constrictor pharyngis medius muscle are often manifested in swallowing and speech disorders. What is the constrictor pharyngis … Musculus Constrictor Pharyngis Medius: Structure, Function & Diseases
The mandibular nerve is the third terminal branch from the 5th cranial nerve. This nerve is also known as the trigeminal nerve and is composed of certain visceromotor and somatosensory fibers. Since the mandibular nerve is closely connected to the nerves of the brain, it is of great importance for the proper functioning of the … Mandibular Nerve: Structure, Function & Diseases
Phylogenesis corresponds to the phylogenetic development of a species of living things. Thus, it is concerned with the processual evolutionary history of humans and other species and with the characteristics that distinguish these species. Studies on phylogenesis correspond to an analysis of single or multiple traits and are often summarized in phylogenetic trees. Phylogenetic analyses … Phylogenesis: Function, Tasks, Role & Diseases
The gill arch is a six-part anatomical system in the early embryonic stage of humans. Various parts of the human body develop from the six relatively independent gill arches during later gestation. If the gill arch is affected by developmental abnormalities, the fetus may experience malformations. What is the gill arch? The head gut of … Gill Arch: Structure, Function & Diseases
The trigeminal nerve owes its name to the tripartite structure of the ocular, maxillary, and mandibular branches. Its main function is trigeminal perception as well as the transmission of neuronal signals from the brain to specific muscles in the three areas. Typical diseases affecting the trigeminal nerve include lesions, trigeminal neuralgia and neurinoma, and meningitis, … Trigeminal Nerve: Structure, Function & Diseases
The palatine bone is a component of the facial skull and, together with the maxilla, contributes to the separation of the nasal and oral cavities. It forms during embryonic development as palatine processes grow together from the maxillary ridges. Disruptions in this process can affect the separation of the nasal cavity and oral cavity. What … Palatine Bone: Structure, Function & Diseases
The mylohyoid muscle is the maxillary hyoid muscle that runs above the hyoid bone and originates from a fine bony ridge on the inside of the lower jaw. Tension in the maxillary hyoid muscle can be responsible for difficulty swallowing and other health disorders. What is the mylohyoid muscle? The hyoid bone (Os hyoideum) is … Mylohyoid Muscle: Structure, Function & Diseases
The glossopharyngeal nerve belongs to the cranial nerves and has six branches in which it carries motor, parasympathetic, sensory and sensitive fibers. With them, the glossopharyngeal nerve predominantly innervates the pharynx, tongue, and palatine tonsil. What is the glossopharyngeal nerve? Twelve cranial nerves exit the brain at different points in the head and increasingly branch … Glossopharyngeal Nerve: Structure, Function & Diseases