60 results found

Search Results for: secretory

Endomembrane system

Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More

Apocrine gland

The human body is a complex assemblage of many different organs, systems, glands, bones, and tissues. Weighing any one over... Read More

Proteoglycan

What are proteoglycans? Proteoglycans are primarily a type of polysaccharide. Structurally, proteoglycans are... Read More

Rough endoplasmic reticulum

Rough Endoplasmic Reticulum Definition The rough endoplasmic reticulum (rough ER or rER) is a membrane-bound organelle... Read More

Pharynx

Lined with moist tissue, the pharynx is like a bustling biological highway that directs food and air to their respective... Read More

Merocrine gland

Definition noun, plural: merocrine glands A type of exocrine gland in which the secretory products are released without... Read More

Golgi apparatus

Golgi Apparatus Definition The Golgi apparatus is a membrane-bound organelle in eukaryotic cells. It plays a crucial role... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Uterine cycle

Definition noun The cycle that depicts the changes in the endometrial lining occurring during a menstrual cycle, and is... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More

Zymogen granules

Definition noun The granules in the cytoplasm of secretory cells containing the zymogen Supplement Zymogen granules are... 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

Holocrine gland

Definition noun, plural: holocrine glands A gland releasing a secretion consisting of disintegrated cells and their... Read More

Vesicle

Definition noun, plural: vesicles (general) A small sac or cyst containing fluid or gas (cell biology) A bubble-like... Read More

Endoplasmic reticulum

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

Nematocyst

All organisms are composed of millions of cells. Many cells serve specific purposes and are specialized to do distinct... Read More

Secretion

Definition noun, plural: secretions (1) The physiological process of synthesizing and eventually releasing substances from... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More

Humoral immunity

Let’s get to know where one should place humoral immunity, the topic of today’s discussion!! By the end of the article,... Read More

Sensory neuron

Definition noun, plural: sensory neurons A type of neuron that transmits sensory nerve impulses Supplement The neurons are... Read More

Axon terminal

An axon terminal is any of the button-like endings of axons through which axons make synaptic contacts with other nerve... Read More

Lacuna

Definition of Lacuna What is lacuna? The word "lacuna" (noun, plural: lacunae) is derived from the Latin word- 'lacus',... Read More

Prop root anatomy of Philodendron bipinnatifidum Schott (Araceae)

Prop root anatomy of Philodendron bipinnatifidum Schott (Araceae) VIANNA, Wânia de Oliveira, SOARES, Marli Kasue Misaki... Read More

Diarrhea

Definition noun An abnormally frequent discharge of a loose, watery stool Supplement Diarrhea pertains to the abnormally... Read More

Tapetum

Definition noun, plural: tapeta (botany) A layer of nutritive cells within the sporangium, providing nutrition for growing... Read More

Cuboidal epithelium

Definition noun, plural: cuboidal epithelia An epithelial tissue comprised of cuboidal epithelial cells, and is involved in... Read More

Columnar epithelium

Definition noun, plural: columnar epithelia An epithelial tissue comprised of columnar epithelial cells, with or without... Read More

Immunoglobulin A

Definition noun An immunoglobulin (antibody) that is characterized by its α-heavy chain, and its prevalence in mucous... Read More

Plant Biology

Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles,... Read More

The Human Physiology

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiological... 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

Cell Structure

The interior of human cells is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Digestion and Absorption of Food

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

Tropocollagen

Definition noun, plural: tropocollagens A single collagen molecule; a molecular structure that makes up a collagen fiber,... Read More

Duocrinin

Duocrinin a postulated gastrointestinal hormone that is liberated by the contact of gastric contents with the intestine and... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Longitudinal section

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

Postsynaptic

Definition adjective (1) Of or pertaining to or being on the receiving end of a discharge across a synapse. (2) Pertaining... Read More