What is the brain stem? The brain stem is the developmentally oldest part of the brain. Together with the diencephalon, sometimes also with the cerebellum and parts of the terminal brain, it is often referred to synonymously as the brain stem. However, this is not correct: the brain stem includes all parts of the brain … Brainstem: Function, Structure, Damage
The metathalamus is a component of the diencephalon and participates in visual and auditory information processing]. Lesions in this area of the brain can accordingly cause visual and auditory disorders due to, for example, strokes, [[circulatory disorders]], increased intracranial pressure, neurodegenerative diseases, tumors, and traumatic brain injury. What is the metathalamus? The metathalamus is an … Metathalamus: Structure, Function & Diseases
The temporal lobe is the second largest lobe of the cerebrum. It performs several important functions. What is the temporal lobe? The temporal lobe is also known as the temporal lobe, temporal brain, or temporal lobe. It forms part of the cerebrum and is its second largest lobe after the frontal lobe. The temporal lobe … Temporal Lobe: Structure, Function & Diseases
The aryepiglottic fold is counted as part of the pharynx in humans. It is a mucosal fold. It is vibrated in during laryngeal singing. What is the aryepiglottic fold? The aryepiglottic fold is called the plica aryepiglottica. It is associated with the medulla oblongata in medicine. The medulla oblongate is approximately 3 cm long. Downward, … Aryepiglottic Fold: Structure, Function & Diseases
The swallowing act consists of a preparatory phase and three transport phases. The first phase corresponds to the oral transport phase of the food pulp, during which the swallowing reflex is triggered. Swallowing reflex disorders of the oral transport phase are often directly related to neurogenic diseases or muscle and connective tissue diseases. What is … Oral Transport Phase: Function, Role & Diseases
The anterior vagal trunk is a nerve branch of the vagus nerve involved in parasympathetic innervation of the stomach and liver. Thus, the visceromotor fibers of the nerve control portions of involuntary organ activity. Failure of the anterior vagal trunk leads to dysregulation of the liver and stomach. What is the anterior vagal trunk? The … Truncus Vagalis Anterior: Structure, Function & Diseases
The corpus callosum connects the hemispheres of the brain. It runs transversely and consists of a large number of fibers. It is also called the bar. What is the corpus callosum? The corpus callosum is medically referred to as the commissura magna. In addition, it is also titled the bar. It is composed of over … Corpus Callosum: Structure, Function & Diseases
The geniohyoid muscle is one of the suprahyoid muscles that together open the jaw and participate in swallowing. The hypoglossal nerve is responsible for the nervous supply to the geniohyoid muscle. Accordingly, hypoglossal nerve palsy impairs the function of the muscle and causes dysphagia, which can occur in the context of numerous neurologic, muscular, and … Geniohyoid Muscle: Structure, Function & Diseases
The abducens nerve is the VIth cranial nerve. It is responsible for the movement of the eyeball. It is composed primarily of motor fibers and innervates the lateral straight muscle. What is the abducens nerve? The abducens nerve is the VIth of the total XII. Cranial Nerves. Like most other cranial nerves, it supplies areas … Abducens Nerve: Structure, Function & Diseases
The inferior alveolar nerve is found in the mandible and contains sensitive fibers responsible for the teeth, chin, and lower lip. In addition, the inferior alveolar nerve includes a motor branch that controls the mylohyoid muscle and the digastric muscle. Dentistry uses the nerve pathway in part for local anesthesia (conduction anesthesia). What is the … Inferior Alveolar Nerve: Structure, Function & Diseases
The diencephalon, also known as the interbrain, is one of the five main major sections of the brain. It works closely with the cerebrum (end brain) and together with it forms what is known as the forebrain. The diencephalon is in turn divided into five other structures, which perform a variety of functions. What is … Diencephalon: Structure, Function & Diseases
The pharyngeal plexus is located in the pharynx and is a plexus of nerves containing predominantly fibers from the ninth and tenth cranial nerves. It controls muscles of the pharynx and palate as well as glands in the pharyngeal mucosa, which it also innervates sensitively. Swallowing disorders (dysphagia) and sensory disturbances may be due to … Pharyngeal Plexus: Structure, Function & Diseases