Search Results for: heart_muscle
Muscular system
Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... 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
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
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
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... 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
Cardiac muscle
Definition noun, plural: cardiac muscles (1) The heart muscle of the vertebrates (2) myocardium Supplement The muscles of... Read More
Muscle tissue
Definition noun, plural: muscle tissues An animal tissue capable of contracting, and therefore enables movement or tension... Read More
Agonal rhythm
Agonal Rhythm Definition Agonal rhythm is the slow, irregular heart rhythm (electrical activity of the heart), particularly... Read More
Smooth endoplasmic reticulum
Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is part of or a region in the endoplasmic... 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
Balanced diet
What is a balanced diet? What is the definition of a balanced diet? A nutritionally balanced diet fulfills all nutritional... Read More
Starlings law
Definition noun Starling’s law states that the force of contraction depends on the length of muscle fibers of the heart... Read More
An introduction to Homeostasis
Researched and Written by Jonjo Minns Submitted to biologyonline.com on February 25, 2009. Published in biologyonline.com... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Digestion and Absorption of Food
The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More
Regulation of Organic Metabolism, Growth and Energy Balance
Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More
Catabolism
Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More
Stannius ligature
Definition noun A ligature done in between the sinus venosus and the atrium or around the atrioventricular junction of an... Read More
Adipose tissue
Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More
Thalassophobia
Among many psychological and psychiatric disorders, one is the fear of the ocean and the fear of deep water, which in... Read More
Coordination
Coordination Definition When a person hears the word coordination, they think of order, organization, or even managing... Read More
Simple squamous epithelium
Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More
Equilibrium
Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More
Columnae carneae
Definition noun Muscular ridges or columns projecting from the inner walls of the heart ventricles. Supplement Their... Read More
Trabeculae carneae
Definition noun Muscular ridges that crisscross and project from the inner walls of the heart ventricles. Supplement Their... Read More
Triglyceride
Definition noun, plural: triglycerides An energy-rich compound made up of a single molecule of glycerol and three molecules... Read More
Organization
Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More
Morphology
Morphology Definition Morphology means the study of the shape and structure of living things from a biological perspective.... Read More