47 results found

Search Results for: tubule

Tubule

Definition noun, plural: tubules A small tube-like or fistular structure; a hollow cylindrical anatomical structure in the... Read More

Straight seminiferous tubule

Definition noun, plural: straight seminiferous tubules Any of the short, straight canals of the seminiferous tubules that... Read More

Malpighian tubule

Definition noun, plural: Malpighian tubules A tubule extending from the interior (alimentary canal) to the exterior of many... Read More

Convoluted seminiferous tubule

Definition noun, plural: convoluted seminiferous tubules Any of the convoluted or curved canals of the seminiferous tubules... Read More

Seminiferous tubule

Definition noun, plural: seminiferous tubules Any of the tubules in the testes through which spermatozoa are produced and... 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

Spermatogenesis

Spermatogenesis is the biological process of producing mature sperm cells, and occurs in the male gonad of a sexually... Read More

Rete testis

Definition noun, plural: rete testes A network of tubules in the hilum of the testicle, and serves as passageway for sperm... Read More

Nephron

Definition noun, plural: nephrons The structural and functional unit of the kidney, i.e. a structure comprised of a set of... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Microtubule organizing center

Definition noun A structure inside the cell from where microtubules organize following depolymerization to turn into tubular... Read More

Microtubule

Microtubule Definition noun plural: microtubules mi·cro·tu·bule, mī'krō-tū'byūl A cytoplasmic tubule made up of... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Glycosuria

Definition noun, plural: glycosuria The presence of atypically high sugar level in urine Supplement Glycosuria is a... Read More

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

Loop of henle

Loop of henle a u-shaped turn in the medullary portion of a renal tubule, with a descending limb from the proximal... Read More

Kidney

Definition noun, plural: kidneys (anatomy) Either of a pair of two bean-shaped organs located at the back of the abdominal... Read More

Capsular space

Capsular space The slitlike space between the visceral and parietal layers of the capsule of the renal corpuscle; it opens... Read More

Ultrafiltration

Definition noun (1) A high pressure filtration through a semipermeable membrane in which colloidal particles are retained... Read More

Cnidocyte

Definition noun, plural: cnidocytes A specialized cell containing a cnidocyst involved in capturing prey and defense... Read More

Nematocyte

Definition noun, plural: nematocytes A specialized cell containing a nematocyst used by cnidarians to capture their prey and... Read More

Cnidoblast

Definition noun, plural: cnidoblasts A developing cell containing a cnidocyst Supplement Cnibolasts are cells that develop... Read More

Etioplast

Definition noun, plural: etioplasts (botany) A plastid that developed in darkness or under low light conditions Supplement A... Read More

Microvillus

Definition noun, plural: microvilli Any of the minute hairlike structures projecting from the exposed surface of the cell in... Read More

Canaliculus

Definition noun, plural: canaliculi (anatomy) Any of many small canals or ducts in the body, such as in the bone, or in some... Read More

Cell Structure

The interior of the cell is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped structure... 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

Thrombopoietin

Definition noun, plural: thrombopoietins A glycoprotein hormone produced by liver and kidney associated with the production... Read More

Depolarization

Definition noun The deprivation or the process of neutralization of polarity, as that in nerve... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Basal granule

Basal granule --> basal body (Science: cell biology) structure found at the base of eukaryotic cilia and flagella... Read More

Active transport

Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More

Endoplasmic reticulum

Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More

Solvent drag

Definition noun, plural: solvent drags The transportation of ultrafiltrate back from the renal tubule through the flow of... Read More

Protoplasm

Definition noun plural: protoplasms pro·to·plasm, ˈprəʊtəˌplæzəm The fluid living content of the cell that... Read More

Brush border

Definition noun A layer of densely packed microvilli projecting from the inside surface of a tubular... Read More

Semen

Definition noun The slimy whitish fluid comprised of sperm cells and secretions from the sexual glands released at orgasm... Read More

Mineralocorticoid

Definition noun, plural: mineralocorticoids Any of a group of corticosteroids produced by the adrenal cortex that act on the... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Basal corpuscle

Basal corpuscle --> basal body (Science: cell biology) structure found at the base of eukaryotic cilia and flagella... Read More