What does the tear film consist of? As mentioned above, the tear fluid must perform many different tasks. Therefore, the tear film must consist of several components to meet all the requirements of the eye. The tear film consists of: The tear fluid serves to increase the optical quality of the cornea. All three components … What does the tear film consist of? | Lacrimal ducts
Diseases of the lacrimal ducts Clogged tear ducts are usually noticeable by an overflow of tear fluid from the eye. This is known as lacrimation (epiphora). A blockage of the tear ducts can be congenital or acquired in the course of life.Causes can be inflammations, injuries, rarely tumors or the natural aging process. In most … Diseases of the lacrimal ducts | Lacrimal ducts
Introduction The nucleus is the largest organelle of a cell and is located in the cytoplasm of eukaryotic cells. The round cell nucleus, which is bounded by a double membrane (nuclear envelope), contains the genetic information packed in chromatin, the deoxyribonucleic acid (DNA). As a store of genetic information, the cell nucleus plays a central … The cell nucleus
What is caryoplasm? The karyoplasm is also called nuclear plasma or nucleoplasm. It describes the structures that lie within the nuclear membrane. In contrast, there is also the cytoplasm, which is bounded by the outer cell membrane (plasma membrane). These two spaces consist largely of water and various additives. An important difference between karyoplasm and … What is caryoplasm? | The cell nucleus
What do you need the nuclear pores for? The pores in the membrane are complex channels with a diameter of 60 to 100 nm, which form a physiological barrier between the nucleus and the cytoplasm. They are required for the transport of certain molecules to or from the cell nucleus. These molecules include, for example, … What do you need the nuclear pores for? | The cell nucleus
What is cell nuclear transfer? A cell nucleus transfer (synonym: cell nucleus transplantation) is the insertion of a cell nucleus into a nucleusless egg cell. This was artificially produced in advance, for example by using UV radiation. The egg cell, which now contains the nucleus, can then be inserted into a sexually mature individual and … What is cell nuclear transfer? | The cell nucleus
Introduction The anatomy of the tooth essentially consists of three layers. In the crown area the outermost layer is the enamel, the hardest substance of the body. This is followed by the dentin or dentin bone and inside is the pulp. The root of the tooth is the outermost layer and surrounds a third hard … Pulp (tooth marrow)
Tooth Marrow Inflammation Pulpitis (tooth pulp inflammation) is a disease characterized by the occurrence of inflammatory processes within the tooth pulp. The main reasons for the development of pulpitis are mechanical, thermal and chemical irritations. Metabolic products of bacteria, deep carious defects and/or cracks in the tooth structure can also lead to pulpitis. In the … Tooth Marrow Inflammation | Pulp (tooth marrow)
Therapy If there is a small local inflammation of the crown pulp (tooth marrow), an insert with a paste containing cortisone can in some cases lead to healing. If only the crown pulp is inflamed, it is removed under anesthesia as sterile as possible and the stump is kept alive by covering it with suitable … Therapy | Pulp (tooth marrow)
Definition The human nervous system can be classified in different ways: The first classification is based on where each part of the nervous system is located: A distinction is made between the central nervous system (CNS), which consists of the brain and the spinal cord, And a peripheral nervous system (PNS), which includes all other … Vegetative Nervous System
Classification of the autonomic nervous system The autonomic nervous system is divided into three parts: The enteric nervous system consists of a network of nerves embedded between the individual layers of hollow organs. These include, among others: The digestive organs are once again an exception, since this nervous system works completely independently of the central … Classification of the autonomic nervous system | Vegetative Nervous System
The human jaw comprises two parts, the upper jaw and the lower jaw. These two bony structures differ significantly from each other both in size and shape. While the upper jaw (lat. Maxilla) is formed by a paired bone and is firmly connected to the skull bone, the lower jaw (lat. Mandibula) consists of a … Lower jaw
