Search Results for: sections
Longitudinal section
Longitudinal Section Definition To describe the direction of movements and location of different body structures, a... Read More
Sagittal plane
The sagittal plane is the plane that allows us to see the world in bilateral symmetry. Whether reaching for a high shelf,... Read More
Cross-sections
Cross-section (Science: physics) Usually refers to the (apparent) area presented by a target particle to an oncoming... Read More
Microscopic section
microscopic section --> section 1. The act of cutting, or separation by cutting; as, the section of bodies. 2. A part... Read More
Median plane
In anatomy, the median plane refers to a plane passing vertically through the midline. It divides the body into left and... Read More
Anatomical plane
An anatomical plane refers to a hypothetical plane used in describing the location of bodily structures or movement... Read More
Introductory Chemistry – a Foundation
Introductory Chemistry - a Foundation ... Read More
Pinocytosis
Pinocytosis Definition What is pinocytosis? Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More
Nasopharynx
Definition noun, plural: nasopharynges or nasopharynxes (anatomy) The part of the pharynx extending from the posterior... Read More
Muscle cell
Definition noun, plural: muscle cells Any of the long, tubular mature contractile cells that make up the muscle... Read More
Renal pyramid
Definition noun, plural: renal pyramids A conical mass of tissues as seen on longitudinal section of the kidney and... Read More
Hunter-schreger bands
Hunter-schreger bands Alternating light and dark lines seen in dental enamel that begin at the dentoenamel junction and end... Read More
Hyaline cartilage
Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More
Law of Independent Assortment
Law of Independent Assortment Definition noun (genetics) Mendelian law stating that for every pair of unit factors, each... Read More
Chromosomal mutation
Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... Read More
Muscle tissue
Definition noun, plural: muscle tissues An animal tissue capable of contracting, and therefore enables movement or tension... Read More
Feedback mechanism
Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... 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
Genetics – Lesson Outline & Worksheets
Topics Modules Quizzes/Worksheets DescriptionIntroduction to GeneticsGenetics - Definition:... Read More
Plant Cell Defense
Hydrogen Peroxide Plants release hydrogen peroxide in response to the presence of a fungal invasion, which attacks by... Read More
Independent Assortment and Crossing Over
Reviewed by: Mary Anne Clark, Ph.D.The previous tutorial investigates the process of meiosis, where... Read More
Plant Meristems and Growth
A common mistake that many people assume is that an increase in size means an increase in growth. This is not the case.... 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
Genetic Information and Protein Synthesis
Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More
Nucleosome
Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More
Renal medulla
Definition noun, plural: renal medullae or renal medullas The inner region of the kidney that is arranged into renal... Read More
Intercalary meristem
The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More
Laryngopharynx
Definition noun, plural: laryngopharynges, laryngopharynxes The caudal part of the pharynx, connects to the... Read More