26 results found

Search Results for: relax

Relax

relax 1. To make lax or loose; to make less close, firm, rigid, tense, or the like; to slacken; to loosen; to open; as, to... Read More

Respiration

Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Antagonistic Muscle

Definition of Antagonistic Muscle What does the term “antagonistic” mean? As the name suggests, the word antagonistic... Read More

Telophase

Telophase is the stage of cell division characterized by the decondensation of chromosomes, and the nuclear envelope... Read More

An introduction to Homeostasis

Researched and Written by Jonjo MinnsSubmitted to biologyonline.com on February 25, 2009.Published in biologyonline.com... Read More

Peristalsis

What is Peristalsis? Peristalsis is the series of involuntary, wave-like muscle movements in the cylindrical, hollow tube... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Depolarization

Depolarization is the removal of polarity by a process or action. It might also be used to describe how such activity leads... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Meiosis and Alternation of Generations

Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More

Agonist muscle

Definition noun A muscle that contracts while another muscle relaxes Supplement Muscles may be classified according to the... Read More

Pharynx

Lined with moist tissue, the pharynx is like a bustling biological highway that directs food and air to their respective... Read More

Skeleton

skeleton (Science: anatomy) A solid or fluid system which allows muscles to relax after contracting (in general, because... Read More

Agonist

What is an Agonist? In biology, an "agonist" is the "doer of an action". Opposite of it is the antagonist, which opposes... Read More

Nitrates

Nitrates A group of medications that are made from a chemical with a nitrogen base. Nitrates relax smooth muscle, dilate... Read More

Egestion

Egestion is the act or process of voiding or discharging undigested food as faeces. To egest means to discharge undigested... Read More

Anatomy

Anatomy Definition Often we hear the term 'anatomy' while learning about the body and how it works. What is anatomy? What... Read More

Dna gyrase

Dna gyrase (Science: enzyme molecular biology) a type II topoisomerase of escherichia coli, that is essential for dna... Read More

How High Sugar Level in Blood Damages the Blood Vessels

By Vicki MozoDamage in the vasculature is common in individuals who have high sugar level in blood. It seems that an... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Curarine

Definition noun (pharmacology) The alkaloid responsible for the poisonous effects of curare Supplement Curarine is an... Read More

Residual volume

Residual volume is a term that is most often seen in lung physiology where it is defined as the amount of air remaining in... Read More

Penis erection of the

penis, erection of the When the penis fills with blood and is rigid. The penis contains two chambers, called the corpora... Read More