Anatomy

Definition of neurotransmitter

The first thing we are going to do before entering fully into the meaning of the term neurotransmitter is to know its etymological origin. Specifically, we have to establish that it is the result of the union of two lexical components from different languages: -The Greek noun “neuro”, which can be translated as “nerve”. -The word of […]

Definition of neuron

The first thing we are going to do is know the etymological origin of the term neuron that concerns us now. In this case, it must be emphasized that it comes from Greek, exactly from the word “neuron”, which can be translated as “nerve”. Likewise, we have to point out that this word is a neologism that was coined by the analyst and […]

Definition of nephron

The functional unit of the kidney is called the nephron or nephron. It is a complex structure made up of elements such as the loop of Henle, the distal convoluted tubule, the proximal convoluted tube and the renal glomerulus. Each kidney has more than a million nephrons, responsible for filtering the blood to reabsorb […]

Definition of motility

The notion of motility comes from the English word motility. The term refers to the ability to move: move to leave one place and move to a different one. In the field of medicine, motility specifically refers to the ability to develop coordinated movements with a certain degree of complexity. In this […]

Definition of nose

The Royal Spanish Academy (RAE) recognizes several meanings of the term morro in its dictionary. The notion is used in the field of geography to refer to a rounded or steep rock or a low mountain. In this case, we can establish that words such as cliff, […]

Definition of mitochondria

The etymological origin of the term mitochondria that concerns us now we have to establish that it derives from Greek. Specifically, it is the result of the union of two lexical components of said language: -The word "myths", which can be translated as "thread". -The word "khondros", which is synonymous with "granule". Likewise, it is interesting to know that this term […]

Definition of myocardium

The myocardium is the muscular sector found between the endocardium and the pericardium of the heart in vertebrate animals, including humans. Its operation is involuntary. Numerous capillaries run through this muscle tissue that does not need nervous stimulation, since it is myogenic: it self-excites electrically. The thickness of the myocardium varies […]

Definition of myopia

Myopia is a vision disorder that occurs because light rays coming from objects located at a certain distance from the eye focus on a point anterior to the retina. In this way, since the rays do not converge on the retina itself, a defect is generated […]

Definition of members

Member is a term that has multiple meanings. Coming from the Latin word membrum, it can refer to each extremity of animals or human beings that is articulated with the trunk. In people, the limbs are the legs (which can be mentioned as lower limbs) and the arms (the upper limbs). It can be stated, […]

Definition of myasthenia

The first step we are going to take in this definition of myasthenia is to know its etymological origin. Thus, we can determine that it derives from Greek, specifically it is the result of the sum of these lexical components: -The term "mys, myos", which can be translated as "muscle." -The word «asthenia», which means «without strength». Myasthenia is called […]