Search Results for: head
Crown of head
Crown of Head Definition The crown of the head is the upper dorsal part (or area) of the head. Several creatures have... Read More
Phospholipid
What is a phospholipid? Phospholipids are a subgroup of lipids. Other major types of lipids are fatty acids, sphingolipids,... Read More
Head kidney
Head kidney --> pronephros 1. The definitive excretory organ of primitive fishes. Synonym: head kidney. 2. In the embryos... Read More
Apex of head of fibula
Apex of head of fibula The pointed upper end of the fibular head to which is attached the arcuate popliteal ligament and... Read More
Humeral head
Definition noun, plural: humeral heads The large rounded head of the humerus and articulates with the glenoid cavity of the... Read More
Spermiogenesis
Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More
Selectively-permeable membrane
Selectively Permeable Membrane Definition We can define selectively permeable membranes as those that are selectively... Read More
Endoplasmic reticulum
Endoplasmic Reticulum Definition The endoplasmic reticulum is a membrane-bound organelle in cells of eukaryotic cells... Read More
Convoluted
The word convoluted is often used to describe different things, especially structures or components, that have overlapped.... Read More
Micrometer
micrometer An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of... Read More
Skeletal system
What is the Skeletal System? How to define a skeleton? The skeletal system is the main framework that gives your body its... Read More
Fibrocartilage
What Is Fibrocartilage? Fibrocartilage is the strongest transitional connective tissue made up of collagen fibers and... Read More
SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)
Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004) Introduction: It has been... Read More
Mutualistic symbiosis
Mutualistic Symbiosis Definition In order to understand what a mutualistic symbiotic relationship means, we will break down... Read More
Obligate parasite
Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More
Chondrichthyes
Definition noun A taxonomic class comprised of cartilaginous fish Supplement Chondrichthyes is taxonomic superclass of... Read More
Antecubital fossa
Antecubital Fossa Definition The antecubital fossa or the cubital fossa is the triangular-shaped hollow depression between... Read More
Cephalochordate
Definition noun, plural: cephalochordates Any of the small, elongated, segmented, fish-like chordates that belong to the... Read More
Decerebrate rigidity
Definition noun An involuntary posturing whereby the arms are extended on the sides while the head is arched back, as... Read More
Asteraceae
'Asteraceae'', composite family. A single family enclosed in order Asterales in subclass Asteridae. The other name -... Read More
Parasitism
Organisms depend on different sources of food to survive. Larger organisms like plants make their own food (autotrophs) and... Read More
Spermatogenesis
Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More
Longitudinal section
Longitudinal Section Definition To describe the direction of movements and location of different body structures, a... Read More
Phospholipid bilayer
Definition noun The two layers of phospholipids arranged in such a way that their hydrophobic tails are projecting inwards... Read More