Nasal septum
The nasal septum forms the boundary between the right and left nasal main cavity. It also forms part of the externally visible shape of the nose.
Category : Anatomy-Lexicon
Smell
Smelling is one of the most important human senses; the olfactory cells responsible for it are located in the upper nasal concha. In the context of a runny nose caused by a virus, it often occurs due to the swelling of the mucous membranes and the formation of secretions
Nasal bone
The nasal bone, also called the nasal bone, is paired in humans and ossifies over the course of life. Both nasal bones form the nasal cavity. Changes or diseases in the nasal bone can cause nasal bone fracture, saddle nose, crooked nose, hump nose
Action potential
In the case of an action potential, the membrane potential of a cell is changed to such an extent that electrical excitation can be passed on, thus enabling stimulus transmission. This works by the inflow and outflow of different ions
Sinuses
The paranasal sinuses include the paired maxillary sinuses, the frontal sinus, the paired ethmoid sinuses with their ethmoid cells and the sphenoid sinuses. The sinuses usually become conscious when they become inflamed and become one
Internal organs
The internal organs generally include all organs that are located in the chest and abdominal cavity. No organ stands on its own, but is usually part of a system of several organs with similar functions. But all systems can too
Nervous system
The nervous system is a superordinate switching and communication system that is present in all more complex living beings. The nervous system is used to receive stimuli, to convert, process and transmit these stimuli and to send out impulses
Sphenoid sinus
The sphenoid sinuses are paired, pre-formed cavities in the skull of every person and are part of the paranasal sinuses. Inflammation of the sphenoid sinuses can manifest itself with a feeling of pressure over the nose and forehead, fever and runny nose. Strengthen often
Motor neuron
Motor neurons are the nerve cells that are responsible for the creation and coordination of movements. According to the localization of the motor neurons, a distinction is made between the “upper motor neurons”, which are located in the cerebral cortex, and the “lower ones
Maxillary sinus
The maxillary sinus is a paired cavity in the upper jaw above the upper row of teeth. Inflammation of the maxillary sinus can originate from either the nose or the teeth. Antibiotics are administered therapeutically or, in severe cases, they are given
Myelin sheath
Myelin sheaths are fatty substances that wrap nerve cells and are responsible for better transmission. They work like an insulation cable and prevent signals from having to be generated over and over again. At their destruction
dendrit
Dendrites are extensions of a nerve cell and can occur singly or more than once. Depending on the type of nerve cell, there are, for example, heavily branched dendrite trees. The information that is absorbed via the dendrites reaches the cell
Synaptic cleft
The chemical transmission of stimuli from a nerve cell to its target cell takes place at a synaptic gap. This releases messenger substances that are absorbed on the other side. At this point, many pharmaceuticals and drugs do that
Motorized end plate
The motor endplate is a synapse and transmits electrical excitation from a nerve fiber to a muscle fiber. This process is known as electromechanical coupling, as an electrical signal results in a mechanical reaction called contraction
brain
The brain is the most important organ of vertebrates and forms the overriding command center of the central nervous system. It regulates all conscious and unconscious processes, processes and evaluates complex information content and agrees with a physical one
Axon
An axon is the extension of a nerve cell, which transmits impulses from the nerve cell body into the distance. So that the transmission can take place as quickly as possible, some axons are covered with an insulating myelin layer
Anatomy Lexicon
the medical internet portal. Here you will find information about the structure (anatomy) of humans that is understandable for laypeople.
Joints
The human joints are divided into real joints and fake joints. The real joints are always separated by the joint space, while in the case of fake joints the joint space is missing and is filled with a filling tissue. Next differs
Basal ganglia
The term “basal ganglia” refers to the core areas located below the cerebral cortex, which are primarily responsible for controlling motor functions. In addition, the basal ganglia control cognitive signals and are involved in information processing
Nerve cell
The smallest central functional element of the nervous system is called a nerve cell (neuron). It is made up of a body and processes (axon and dendrites) and is important for generating and / or forwarding information. About synapses
