Abïogenez
Abïogenez

The definition of what Abiogenesis Abiogenesis is the creation of organic molecules by forces that are different from living organisms. While organisms can create carbon-carbon bonds is relatively easy thanks to the enzyme to make it otherwise requires a lot of energy. In the beginning...

agonist
agonist

The definition of an Agonist an Agonist is a molecule that can bind and activate a receptor to cause a biological response. Activity mediated resistance, agonists antagonists, which block the biological responses induced by the agonist. The level of agonist required to induce the desired biological response is called the power. Agonist potency is...

active immunity
active immunity

The definition of what is Active Immunity Active immunity is resistance to disease through the creation of antibodies by the immune system. Unlike passive immunity, where antibodies are introduced into body, active immunity requires a process of training immune cells to recognize and neutralize foreign bodies. Usually a bacteria or virus...

allantois
allantois

The definition of what the Allantois the Allantois is one of the four major membranes surrounding the embryo. It is found near the rear of the embryo as it begins its development. The allantois characteristic of reptiles, birds and mammals, and lies between two other nazaralieva tissues...

Amniotic
Amniotic

The definition of what is a Amnion the Amnion is extraembryonal the membrane that surrounds the developing embryo of amniote. It acts as a protective pouch along with three other nazaralieva fabrics shell: chorion, yolk SAC and allantois. Then the membranes are enclosed in a shell (in birds, reptiles and some...

amniotic fluid
amniotic fluid
Амниотическая жидкость - это прозрачная жидкость, которая окружает развивающийся плод в утробе матери. Он формируется из плазмы матери (или жидкой части клеток крови), как он отражает мимо плодных мембран и succumbs к силам осмоса и гидростатического давления. Визуально говоря, околоплодные воды часто имеют желтый оттенок, но он всегда содержится в околоплодных водах.
Anaplasia – Leiomyosarcoma – Leiomyoma
Anaplasia - Leiomyosarcoma - Leiomyoma

The definition of what Anaplasia Anaplasia is a term used to describe cells which have lost the unique characteristics that define them as a certain type of fabric. Literally from the Greek roots of the word means “to form backward” in the sense that normal cells become...

anatomic position
anatomic position

Anatomical Definition of anatomical Position Standard position is the way to describe the anatomy from the body , so it's easy to understand what part of the body, which they say does not matter in which direction the body is or where its appendages/limbs. Human standard anatomical position is defined as standing directly...

Anatomy
Anatomy

Anatomy Definition of Anatomy is the branch of biology that studies the relationship of the various parts of the body, and how they relate to other parts of the body, both spatial and functional. Anatomy has many disciplines, and is used in many different areas. In General, there is...

anaphase
anaphase

The definition of what is Anaphase Anaphase is the stage during eukaryotic cell division in which chromosomes are separated to opposite poles of the cell. Phase until anaphase, metaphase, chromosomes are pulled to metaphase plate in the middle of the cell. Although the chromosomes were highly condensed at the beginning of cell division, they...

Well Antekubitalynaya
Well Antekubitalynaya

The definition of what Antecubital Fossa the Cubital fossa or just the hole on the elbow, the anatomical term is derived from the Latin word meaning a small ditch or a rut. Numerous muscles and tendons that surround the muscles as well as in the synovial fluid of the joint formed between the bones of the wrist to create the cubital fossa. In...

antioxidant
antioxidant

The definition of what an Antioxidant + test Antioxidants are molecules that prevent oxidation of other molecules. Oxidation is a chemical reaction in which electrons are lost. In living beings this process can be harmful, leading to decomposition of organic molecules. One of the problems...

Antibody
Antibody

The definition of an Antibody an Antibody is a specialized protective protein synthesized by the immune system of vertebrates. These small structures are actually made of 4 different blocks of protein. The ends of the molecule are variable, and can be adapted to bind to any molecule. The shape is determined by the antigens in the system...

Anthropometry
Anthropometry

The definition of Anthropometry Anthropometry is the science of obtaining systematic measurements of the human body. Anthropometry was first developed in the 19th century as a method used by physical anthropologists to study the variability and evolution of man as in living and extinct populations. In...

apoplexy
apoplexy

The definition and explanation of apoplexy Apoplexy is a term used to describe internal bleeding and associated symptoms. Historically, the term originated in the medical profession to describe the phenomenon of patients becoming suddenly weak and becomes unconscious. He didn't understand why apoplexy will happen to...

Apoptosis
Apoptosis

The definition of Apoptosis Apoptosis is a process that occurs in multicellular organisms when the cell is deliberately “decide” to die. This often happens for the greater good of the whole organism, for example, when the DNA of cells become damaged and it may become cancerous. Apoptosis is called “programmed” cell death, because...

atavism
atavism

Definition of Atavism an Atavism is a phenomenon in which the phenotypic trait appears in the organism after a period of absence. Atavism refers to a trait that is not present in the immediate predecessors of man, though existed in its ancestors. This is possible due to the way genes behave throughout...

Atrophy
Atrophy

The definition of what Atrophy Atrophy is a term that describes the inhibition of cell tissue. On a larger scale, atrophy can be seen the reduction in the size and function of the muscles or limbs. This process is often gradual and chronic, if not permanent. However, atrophy is not only...

Abdomen
Abdomen

The definition of the Abdominal Cavity In the abdominal cavity is a large cavity found in the mammalian body between the thoracic cavity separated from thoracic by the diaphragm and pelvic cavity. A protective layer called the peritoneum, which plays a role in the immune system, supporting structures and storage of fat,...

The autonomic nervous system
The autonomic nervous system

The definition of the Autonomic Nervous System the Autonomic nervous system (ANS) is a complex set of neurons that mediate internal homeostasis without conscious intervention or voluntary control. Cells of the ANS Innervate the entire inside and affect their activity locally, and mediate global changes in metabolic...

Autopsy
Autopsy

The definition of what is an Autopsy an Autopsy is a surgical procedure conducted on the corpse after death (a period called the ” posthumous.”). Usually it is held in an attempt to understand the cause of death. An autopsy will be conducted by a qualified doctor who specializiruetsya on pathology, as a cause of death will be required...

Abdomen, Abdominal cavity
Abdomen, Abdominal cavity

The definition of what Abdomen the abdomen refers to the area between the pelvis (pelvic region) and chest (thoracic diaphragm) in vertebrates, including humans. The space located in the abdomen, called the abdominal cavity. The boundaries of the abdominal cavity consists of the back the ventral surface of the anterior abdominal wall, lower...

animal cells
animal cells

The definition of Animal Cells animal Cells are the basic unit of life in organisms of the Kingdom Animalia. It is eukaryotic cells, which means that they have a true nucleus and specialized structures called organelles, which perform different functions. Plants, fungi and simplicity have eukaryotic cells,...

Adrenal glands
Adrenal glands

The definition of the Adrenal glands the Adrenal gland has multiple metabolic roles in the human body. Our two adrenal glands can lie on each of our kidneys. Together, they release hormones that help us to metabolize, undergo sexual maturation as we grow, as well as...

alimentary tract
alimentary tract

The definition of what the digestive tract the alimentary canal is a continuous passage from the mouth and ending at the anus, which carries food through different parts of the digestive system and makes it easy to get out of the body. The alimentary canal varies greatly in the body, but only saw...

human biology