What is chest breathing? Healthy people breathe through both the chest and the abdomen. Chest breathing accounts for around one third of all breathing and abdominal breathing (diaphragmatic breathing) for around two thirds. When breathing through the chest, the intercostal muscles are used to inhale and exhale. Compared to abdominal breathing, chest breathing is considered … Chest Breathing – Simply Explained
What is the mandible? The lower jaw bone consists of a body (corpus mandibulae), the rear ends of which merge into an ascending branch (ramus mandibulae) on both sides at the angle of the jaw (angulus mandibulae). The angle formed by the body and branch (angulus mandibulae) varies between 90 and 140 degrees depending on … Mandible: Anatomy & Function
What is the trachea? What is the function of the trachea? The inner surface of the trachea is lined with a respiratory epithelium consisting of ciliated epithelial cells, brush cells and goblet cells. The goblet cells, together with glands, secrete a secretion that creates a mucus film on the surface that binds suspended particles and … Trachea: Function, Anatomy, Diseases
What is the lung? The lung is the organ of the body in which oxygen is absorbed into the blood from the air we breathe and carbon dioxide is released from the blood into the air. It consists of two wings of unequal size, the left of which is slightly smaller to allow room for … 1. Lung: Function, Anatomy, Diseases
What is the conduction system? The conduction system consists of various specialized heart muscle cells that transmit electrical impulses, causing the heart muscle to contract rhythmically. Pacemaker generates electrical impulses The electrical impulses are generated by so-called pacemaker cells. They are mainly located in two structures: sinus node (the primary pacemaker of the heart) and … Conduction System
What is the midbrain? The midbrain (mesencephalon) is a part of the brainstem in the brain. Among other things, it is responsible for the control of coordination. In addition, it plays an important role for hearing and seeing, but also for the sensation of pain. The midbrain consists of different parts: Towards the back (dorsal) … Midbrain (Mesencephalon): Anatomy & Function
What is the retina of the eye? The retina is a nerve tissue and the innermost of the three wall layers of the eyeball. It extends from the edge of the pupil to the exit point of the optic nerve. Its task is to perceive light: the retina registers the optical light impulses that enter … Eye Retina (Retina)
What is the wrist joint? The wrist is a two-part joint: The upper part is an articulated connection between the forearm bone radius and the three carpal bones scaphoid, lunate and triangular. An interarticular disc (discus triangularis) between the radius and ulna (the second forearm bone) is also involved. The ulna itself is not connected … Wrist: Function, Anatomy and Disorders
How to strengthen your baby’s immune system After birth, the baby’s immune system has to deal with viruses, bacteria and other germs that are still foreign to it. Babies’ immature body defenses have not yet formed antibodies against these pathogens. Nevertheless, newborns are not defenceless against them. This is because the so-called nest protection is … Boosting Children’s Immune System
What is the urethra? Through the urethra, urine produced in the kidneys and collected in the urinary bladder is released to the outside. Female and male urethra have differences. Urethra – female: The female urethra is three to five centimeters long and has a star-shaped cross-section caused by folds. It begins at the lower end … Urethra: Structure and function
What are the eye muscles? Six eye muscles move the human eye in all directions. There are four straight eye muscles and two oblique eye muscles. Straight eye muscles The four straight eye muscles are flat, thin muscles about one centimeter wide. They pull from the upper, lower, middle, and outer walls of the orbit … Eye muscles: Function & structure
What is the cerebrum? The cerebrum or endbrain makes up the main part of the human brain. It consists of a right and a left half (hemisphere), the two connected by the bar (corpus callosum). Apart from the bar, there are other (smaller) connections (commissures) between the two halves of the brain. External division of … Cerebrum: Function, Structure, Damages