104 results found

Search Results for: cardiac

Myocardium

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

Cardiac muscle

Definition noun, plural: cardiac muscles (1) The heart muscle of the vertebrates (2) myocardium Supplement The muscles of... 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

Muscular system

Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More

Circulation

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

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... 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

Cardiac notch of left lung

Cardiac notch of left lung The notch in the anterior border of the superior lobe of the left lung which accommodates the... Read More

Endoplasmic reticulum

Endoplasmic Reticulum Definition The endoplasmic reticulum is a membrane-bound organelle in cells of eukaryotic cells... 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

Autocrine signaling

Autocrine Signaling Definition What is autocrine signaling? Autocrine signaling is a type of cell signaling wherein a cell... Read More

Sarcoplasmic reticulum

Definition noun plural: sarcoplasmic reticula (cell biology) The special type of smooth endoplasmic reticulum found in... Read More

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

Agonal rhythm

Agonal Rhythm Definition Agonal rhythm is the slow, irregular heart rhythm (electrical activity of the heart), particularly... Read More

Voluntary muscle

Definition noun, plural: voluntary muscles A muscle that can be controlled voluntarily Supplement Some of the muscles of the... 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

Myoblast

Myoblast Definition A myoblast is a progenitor cell that when it stops dividing enters myogenesis to develop into a myocyte... Read More

Muscle cell

Definition noun, plural: muscle cells Any of the long, tubular mature contractile cells that make up the muscle... Read More

Depressor reflex

Depressor reflex --> cardiac depressor reflex a fall in blood pressure due to peripheral vasodilation and cardiac... Read More

Hyperosmotic

Hyperosmotic Definition What is hyperosmotic? The word hyperosmotic is derived from two Greek words: 'hyper', meaning... 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

Pacemaker

pacemaker 1. (Science: apparatus, physiology) An object or substance that influences the rate at which a certain phenomenon... Read More

Respiration rate

Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More

Hemolysis

The breakdown or catabolism of red blood cells or erythrocytes that result in the expulsion of hemoglobin and other... Read More

Afferent Nerve

Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More

Fibroblast

The building block of living things is known as the cell. The cell contributes to many parts and functions of different... Read More

Chylomicron

Definition noun, plural: chylomicrons Any of the lipoprotein particles found in blood and lymph that is associated with the... Read More

Bolus injection

A bolus injection is the act of administering a dose of medication or substance directly into the bloodstream by injection.... Read More

Cardiotonic agent

Cardiotonic agent agents that have a tonic effect on the heart or increase cardiac output. They may be glycosidic steroids... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... 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

Digestive Enzymes

Have you ever thought about what happens to the food after you have taken it into your mouth? How those big steak pieces... Read More

Muscle

Definition ''noun, plural: muscles' An organ made up of muscle tissues, or the tissue itself, enabling contraction or... Read More

Glycocalyx

What is the Glycocalyx? The glycocalyx is a polysaccharide-based gel-like, highly hydrous cellular thin layer, covering... Read More

Skeletal muscle

Definition noun, plural: skeletal muscles A voluntary, striated (vertebrate) muscle that is associated with the skeleton,... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

End-systolic volume

End-systolic volume The amount of blood in the ventricle at the end of the cardiac ejection period and immediately preceding... Read More

Gastric gland

Definition noun, plural: gastric glands Any of the glands in the stomach responsible for producing components of gastric... Read More

Desmosome

Definition noun, plural: desmosomes A type of cell junction made up of desmosome-intermediate filament complexes, which in... Read More