35 results found

Search Results for: plasma volume

Plasma volume

Definition noun The total volume of the blood plasma in the circulatory system Supplement The blood is comprised of plasma... Read More

Kidneys and Regulation of Water and Inorganic Ions

Renal Functions Kidneys remove/add substances from/to the plasma. Regulate water concentration, inorganic ion... Read More

Circulation

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

Hyperosmotic

Hyperosmotic Definition The word Hyperosmotic is derived from two Greek words: 'hyper', meaning “excess” and 'osmos',... 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

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

Volume

Definition noun (1) A three-dimensional measure of space occupied or displaced by an object, usually expressed in cubic... Read More

Plasma

Definition noun (1) Fluid through which cellular components of blood, lymph, or intramuscular fluid are suspended (2)... Read More

Movement of Molecules Across Cell Membranes

Diffusion Diffusion is essentially the movement of molecules from a region of higher concentration to a region of lower... Read More

Blood volume

Definition noun The total amount of blood in the body; the sum of the plasma volume and erythrocyte volume; the volume of... 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

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Plasma B cell

Definition noun, plural: plasma B cells A large B lymphocyte that when exposed to antigen, produce, and secrete large... Read More

Plasmolysis

Plasmolysis is the shrinking of protoplasm away from the cell wall of a plant or bacterium. The protoplasmic shrinking is... Read More

Mineralocorticoid

Definition noun, plural: mineralocorticoids Any of a group of corticosteroids produced by the adrenal cortex that act on the... Read More

Matter

Definition noun, plural: matters (1) The material of the universe, especially one that occupies space and has mass (2) The... Read More

Isotonic

Isotonic Definition What does isotonic mean? The term "isotonic" is used in physiology, anatomy, and physical chemistry.... Read More

Cell membrane

Definition noun plural: cell membranes ˈmembɹeɪn The cell’s outer membrane made up of a two layers of phospholipids... Read More

Extracellular fluid

Definition noun The body fluid outside the cell composed of blood plasma, interstitial fluid, lymph and transcellular... Read More

Concentration

Definition noun (1) The measure of the amount of a sub-component (especially solute) in a solution (2) The ratio of the mass... Read More

Erythrocyte

Definition noun, plural: erythrocytes A blood cell with hemoglobin-rich cytoplasm and whose main function is to transport... Read More

Generation of resting membrane potential

Stephen H. Wright Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724... Read More

Aldosterone

Definition noun, plural: aldosterones A mineralocorticoid with a chemical formula of C21H28O5, and controls salt and water... Read More

Plant Cells vs. Animal Cells

Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Hypotonic solution

Hypotonic Solution Definition What is a hypotonic solution? It refers to a solution that contains a lower amount of solute... Read More

Homogenous

What is homogenous? What does homogenous mean? The word homogenous has been derived from two Greek words that are... Read More

Roots

Upon seed germination, the embryo root, called the radicle, grows and develops into the first root. The radicle may thicken... Read More

Natriuretic hormone

Definition noun A hormone released in response to an expansion of plasma volume, and functions in the regulation of sodium... Read More

Turgidity

Turgidity is the state of being turgid or swollen, especially due to high fluid content. In general context, turgidity... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Procaryote

Definition noun, plural: procaryotes Any of the group of organisms primarily characterized by the lack of true nucleus and... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Amniotic fluid

Definition noun The protective fluid surrounding the developing fetus within the amniotic sac of a pregnant... Read More

Prokaryote

Prokaryote refers to any of the group of organisms primarily characterized by the lack of true nucleus and other... Read More