Without the parietal lobe, humans would not be able to perform spatial reasoning, haptic perceptions, or the controlled execution of hand and eye movements. The cerebral area, which is particularly important for sensory perception, lies between the temporal, frontal, and occipital lobes and, as part of the central nervous system, can be involved in many, … Parietal Lobe: Structure, Function & Diseases
With various online stores, it is now possible to order glasses according to certain specifications and wishes. However, not every visual impairment or visual disorder indicates the need for glasses. Several causes can underlie the condition. One cause, which has become increasingly common in younger people in recent years, is glaucoma. This article deals with … Narrow-angle Glaucoma: Causes, Symptoms & Treatment
Most patients are reluctant to go to the dentist, as visits to the office are often associated with pain and the unpleasant noise of the mechanical dental drill. In contrast, laser drills (dental lasers) operate quietly and do not cause annoying vibrations. Laser technology used in dentistry is more precise and often faster than commonly … Laser Drill: Applications & Health Benefits
The common carotid plexus is a nerve plexus in the human organism. This is a network of different nerves that connect their fibers. The common carotid plexus consists of sympathetic nerve fibers. What is the common carotid plexus? In the human organism, there is a plexus of nerves, lymphatic vessels, veins or arteries in various … Common Carotid Plexus: Structure, Function & Diseases
The psyche lies in the realm of the invisible, intangible. It is the immaterial core of the individual. It influences what the person feels and can imagine. It is a biomagnetic energy field and is superior to the material body. What is the psyche? The psyche controls the mental and inner life of man, influences … Psyche: Function, Tasks, Role & Diseases
The phenotype is the outwardly visible appearance of an organism with its various characteristics. Both genetic makeup (genotype) and environment influence the expression of the phenotype. What is the phenotype? The phenotype is the outwardly visible appearance of an organism with its various characteristics. The visible expressions of an organism, but also the behavior and … Phenotype: Function, Tasks, Role & Diseases
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 pork tapeworm (Taenia solium) is a parasite that is transmitted to humans by eating raw pork. Humans are a definitive host for Taenia solium, whereas pigs are only an intermediate host. What is pork tapeworm? Tapeworms live as parasites in the intestines of humans or other vertebrates. There are many different types of tapeworms. … Swine Tapeworm: Infection, Transmission & Diseases
In the case of a hematoma on the eye, a distinction must be made between a retrobular hematoma, conjunctival hemorrhage, and the so-called violet. A retrobular hematoma results from an arterial hemorrhage behind the eye and can significantly disrupt the function of the eye. In the worst case, such a hematoma can lead to blindness … Hematoma on Eye
In general, we divide our lives into waking and sleeping phases. While we can consciously control the phases of activity in the waking state, this is not readily possible in the sleep phase. The brain controls with a multitude of hormones and messenger substances those processes that switch the body active and inactive and keep … Basic Rest-Activity Cycle: Function, Tasks, Role & Diseases
An intraocular lens is an artificial lens that is inserted into the eye during a surgical procedure. The artificial lens remains in the eye permanently and significantly improves the patient’s vision. What is an intraocular lens? An intraocular lens is an artificial lens that is inserted into the eye during a surgical procedure. Intraocular lenses … Intraocular Lens: Function, Task & Diseases
Bifocals are special multi-focal glasses. They are suitable for people who have two refractive errors. What are bifocals? Bifocals eliminate the need to switch between distance and reading glasses. With the help of bifocals, two different refractive errors can be corrected at the same time. The Latin term ‘bifocal’ means ‘two’ (‘bi’) and ‘focal point’ … Bifocals: Applications & Health Benefits
