38 results found

Search Results for: anal

Alimentary canal

Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More

Chordata

Chordata Definition What is Chordata? Chordata is the phylum of the animal kingdom that includes a large number of animal... Read More

Postanal gut

Definition noun A postrectal extension of the embryonic hindgut to the cloacal membrane where the anal opening... Read More

Pathogen

What are Pathogens? Pathogens are defined as microscopic organisms, including viruses, bacteria, fungi, and parasites that... 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

Pinworm

Definition noun, plural: pinworms A small nematoid worm that inhabits the rectum of the human host Supplement Pinworms are... Read More

Digestion and Absorption of Food

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

Cephalochordate

Definition noun, plural: cephalochordates Any of the small, elongated, segmented, fish-like chordates that belong to the... Read More

Egestion

Egestion is the act or process of voiding or discharging undigested food as faeces. To egest means to discharge undigested... Read More

Kingdom Animalia

Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More

Labia

Labia Definition Often, when persons think of the female reproductive system, they think of the vagina. However, the female... 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

Triploblastic

Triploblastic Definition A triploblastic animal had three main layers of tissue during embryonic development. The central... Read More

Sigmund Freud and Carl Gustav Jung

Sigmund Freud Sigmund Freud was a famous Austrian neurologist (1856 - 1939), who stated that dreams were the manifestation... 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

Specimen

A specimen is a meticulously selected representative of a group that undergoes rigorous research studies to derive some... Read More

Tunicate

Definition noun, plural: tunicates Any of the sessile marine chordates of the subphylum Tunicata Supplement Chordates... Read More

Agnathan

Definition noun, plural: agnathans Any of the jawless fish species belonging to the taxonomic superclass Agnatha of the... Read More

Monogenea

Definition noun A group of ectoparasitic tapeworms of the phylum Platyhelminthes Supplement The phylum Platyhelminthes... Read More

Enterobius vermicularis

Definition noun Human pinworm that inhabits the rectum of its host Supplement Enterobius vermicularis (formerly Oxyurias... Read More

Vent

vent To snuff; to breathe or puff out; to snort. Origin: Cf. F. Venter to blow, vent wind (see Ventilate); but prob... Read More

Intracellular digestion

Intracellular Digestion Definition What is intracellular digestion? ‘Intra’ means "inside" and ‘cellular’ pertains... Read More

Osteichthyes

Definition noun A taxonomic superclass of a diverse group of fish that have skeletons composed primarily of bone... Read More

Chondrichthyes

Definition noun A taxonomic class comprised of cartilaginous fish Supplement Chondrichthyes is taxonomic superclass of... Read More

Sexually transmitted disease

Definition noun, plural: sexually transmitted diseases (pathology) A disease that is primarily contracted through sexual... Read More

Lancelet

Definition noun, plural: lancelets A small fishlike chordate of the taxonomic order Amphoxiformes Supplement The... Read More

Fin

Fin 1. (Science: marine biology, zoology) An organ of a fish, consisting of a membrane supported by rays, or little bony or... Read More

Natal cleft

Definition noun (1) The cleft or sulcus as a result of the anchoring of the deep layers of the skin to the anococcygeal... Read More

Incisura

Definition noun, plural: incisurae A notch; an indent; a small hollow Supplement Incisura is a Latin word for incisure... Read More

Anoderm

Definition noun The epithelial lining from the dentate line to the intersphincteric groove Supplement The anoderm refers... Read More

Overview of Chirology

Psychodiagnostic Chirology (PDC) is a comprehensive diagnostic discipline applied by professional behavioral specialists in... Read More

Trichomoniasis

Definition noun (pathology) A sexually transmitted infection caused by a trichomonad species, especially Trichomonas... Read More

Corrugator cutis muscle of anus

Corrugator cutis muscle of anus smooth muscle fibres radiating from the anal opening superficial to the external... Read More

Orifice

Definition noun, plural: orifices An opening or aperture; any external opening in the body of an animal. Supplement In a... Read More

Scent glands

scent glands exocrine glands in animals which secrete scents which either repel or attract other animals, e.g. Perianal... Read More

Stratified squamous epithelium

Definition noun, plural: stratified squamous epithelia A type of stratified epithelium in which the topmost layer is made up... Read More

Phylum

Just like it is easy to identify and sort anything in the supermarkets when placed in the right section with proper display... Read More

New Zealand’s Unique Flora

By: Maria Victoria Gonzaga In the previous lesson, we've come to know some of the most fascinating endemic... Read More