43 results found

Search Results for: relaxation

Muscle relaxation

muscle relaxation That phase of a muscle twitch during which a muscle returns to a resting... 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

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

Peristalsis

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

Endoplasmic reticulum

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

Ectoplasm

Definition Of Ectoplasm The peripheral part of the cytoplasm which is clear, gel-like, rigid, and agranular part is known... 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

Chromatin

Chromatin Definition What is chromatin in a cell? Chromatin is a complex of nucleic acids (e.g. DNA or RNA) and proteins... Read More

Selectively-permeable membrane

Selectively Permeable Membrane Definition We can define selectively permeable membranes as those that are selectively... Read More

Cytokinesis

The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More

Nervous colon syndrome

nervous colon syndrome (Science: syndrome) A common gastrointestinal disorder characterised by abdominal pain, bloating,... Read More

Photolysis

Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More

A Band

The dark band of the muscle sarcomere that corresponds to the thick myosin (protein) filaments.The A band is situated on... Read More

Uvuloptosis

uvuloptosis relaxation or elongation of the uvula. Synonym: falling palate, staphylodialysis, staphyloptosis,... Read More

Breathing

Breathing 1. Respiration; the act of inhaling and exhaling air. Subject to a difficulty of breathing. (Melmoth) 2. Air in... 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

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is part of or a region in the endoplasmic... Read More

Accommodation reflex

Definition noun, plural: accommodation reflexes A reflex reaction of the eye in response to focusing on near object followed... Read More

Cyclic guanosine monophosphate

Definition noun plural: cyclic guanosine monophosphates (biochemistry) A cyclic form of guanosine monophosphate (chemical... Read More

Muscle

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

Circulation

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

Digestion and Absorption of Food

The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... 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

Adenosine

Definition noun plural: adenosines a·den·o·sine, əˈdɛn əˌsin A purine nucleoside that has adenine bound to a... Read More

Micturition reflex

micturition reflex contraction of the walls of the bladder and relaxation of the trigone and urethral sphincter in response... Read More

Sarcoplasmic reticulum

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

Meltzer-lyon test

Meltzer-Lyon test A test used in diagnosis of gallbladder conditions: 25 ml of a 25% solution of magnesium sulfate are... Read More

Vasodilation

vasodilation The increase in the internal diameter of a blood vessel that results from relaxation of smooth muscle within... 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

Ganglia

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

Blood pressure

Blood pressure (Science: cardiology, physiology) The force that the circulating blood exerts on the walls of the... Read More

Ventilation

Ventilation Definition Often when persons think of ventilation, they think of getting clean or enough air into a room. This... Read More

Longitudinal section

Longitudinal Section Definition To describe the direction of movements and location of different body structures, a... Read More

Resting potential

Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... Read More

Ejaculation

Definition noun (biology) The act of ejecting or expulsion, as of the expulsion of semen from the male genital tract in... Read More

Volatile oil

Volatile Oil Definition Volatile oils are aromatic compounds that are characterized by their volatility and inability to... Read More

Thiamine

Definition noun One of the B vitamins that can be obtained from pork, oatmeal, brown rice, vegetables, potatoes, liver,... Read More

Prostaglandin

Definition noun, plural: prostaglandins A group of eicosanoids, structurally characterized as 20-carbon unsaturated fatty... 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