168 results found

Search Results for: tract

Alimentary canal

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

Peristalsis

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

Digestion and Absorption of Food

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

Buck’s traction

Buck's Traction Definition Buck's traction for femur fracture is very helpful. It can be utilized in the treatment and... 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

Iliopubic tract

Iliopubic tract Thickened inferior margin of the transversalis fascia seen as a fibrous band running parallel and posterior... Read More

Tractus temporopontinus

tractus temporopontinus --> temporopontine tract A fibre group originating in the cerebral cortex of the temporal lobe,... Read More

Septomarginal tract

septomarginal tract See: semilunar... Read More

Anterolateral system

Definition noun A composite bundle of fibers in the ventral half of the lateral funiculus of the spinal cord, and comprised... Read More

Epithelium

An epithelium is a type of animal tissue made up of densely packed cells (called epithelial cells) that rest on a basement... 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

Fasciculus of Lissauer

Definition noun A small bundle of fibers situated longitudinally in the white matter, at the entrance of the dorsal root... Read More

Why Non-Human Primates Don’t Speak Like Humans

Summary: Why are non-human primates unable to speak like humans? A widely-accepted theory associated it with their lack of... Read More

Cytology

The biological world is so diverse that studying it under a single umbrella as a subject is next to impossible. Hence,... Read More

Enterococcus faecalis

Definition Non-motile, gram-positive, facultatively anaerobic, microbial species that normally dwells in the... Read More

Opportunistic pathogen

Opportunistic Pathogen Definition How do we define opportunistic pathogen? The opportunistic pathogen is an infectious... Read More

Kidneys and Regulation of Water and Inorganic Ions

Renal Functions Kidneys remove/add substances from/to the plasma. Regulate water concentration, inorganic ion... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Decomposer

Decomposer Definition The organisms that carry out the process of decay or breakdown of the dead organism are known as... Read More

Afferent Nerve

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

Fasciculus dorsolateralis

Fasciculus dorsolateralis --> dorsolateral fasciculus a longitudinal bundle of thin, unmyelinated and poorly myelinated... Read More

Glycocalyx

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

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Peritoneum

What is the Peritoneum? The term peritoneum refers to the serous membrane that constitutes the biologically active inner... 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

Commensalism

Commensalism Definition What is commensalism? Literally, commensalism is a Latin word that means ‘to eat at the same... Read More

Intracellular digestion

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

Digestion

Definition noun (1) (physiology) The catabolic process in the digestive tract where ingested food is converted into simpler,... Read More

Serratia marcescens

Definition Noun A gram-negative motile and non-endospore forming rod bacterium associated with hospital acquired infections... Read More

Prostaglandin

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

Enterobacter aerogenes

Definition Noun A gram-negative rod shaped motile and encapsulated bacterium and have peritrichous flagella that surrounds... Read More

Peptic ulcer

Definition noun, plural: peptic ulcers An ulcer in certain areas in the gastrointestinal tract caused in part by diminished... Read More

Flagellum

Flagellum Definition Flagellum is a slender, hair-like structure composed of a complex arrangement of multiple proteins,... Read More

Digestive system

Definition noun A system of organs in which the major function is to convert food into simpler, absorbable nutriments to... Read More

Assimilation

Assimilation Definition What is assimilation? Assimilation in biology is defined as the process in which living organisms... Read More

Chorion

Chorion Definition The chorion is a membrane that develops around the developing fertilized egg. It begins to develop... 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

Aerobic bacteria

Aerobic Bacteria Definition What does aerobic mean in biology? As the name suggests, 'aerobe' in biology means organisms... Read More

Hypertonic solution

Hypertonic Solution Definition Hypertonic solution is a relative term that describes the solution having a higher amount of... Read More