30 results found

Search Results for: rigidity

Lead-pipe rigidity

Definition noun A hypokinetic disorder characterized by the inflexibility or stiffness of the limb that is maintained... Read More

Clasp-knife rigidity

Clasp-knife rigidity --> clasp-knife spasticity initial increased resistance to stretch of the extensor muscles of a joint... 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

Rigidity

rigidity Stiffness or inflexibility, chiefly that which is abnormal or morbid, rigor. Origin: L. Rigiditas, rigidus =... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Turgidity

Turgidity is the state of being turgid or swollen, especially due to high fluid content. In general context, turgidity... Read More

Turgor pressure

In biology, turgor pressure definition pertains to the pressure that is exerted by the fluid (e.g. water) against the cell... Read More

Hypotonic solution

Hypotonic Solution Definition What is a hypotonic solution? It refers to a solution that contains a lower amount of solute... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Plasmolysis

Plasmolysis is the shrinking of protoplasm away from the cell wall of a plant or bacterium. The protoplasmic shrinking is... Read More

Control of Body Movement

Motor Control Hierarchy A motor program is the pattern of neural activities required to perform a movement is created and... Read More

Vascular Plants: Ferns and Relatives

These plants are seedless plants, but unlike the bryophytes, they do have vascular tissue (xylem and phloem). Because of the... Read More

Plant cell

Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More

Glycosidase

Definition noun, plural: glycosidases (biochemistry) An enzyme catalyzing the hydrolysis of a... Read More

Middle lamella

Definition noun plural: middle lamellae ˈmɪdəl ləˈmɛl.ə A pectin-rich intercellular material that glues the... Read More

Secondary cell wall

Definition noun plural: secondary cell walls ˈsɛkənˌdɛɹi sɛl wɔːl The layer of the plant cell wall that forms... Read More

Murein

Definition noun A crystal lattice structure in the cell wall of eubacteria formed by the linear chains of two alternating... Read More

Chloroplast

Chloroplast Definition What is chloroplast? In biology, a chloroplast refers to the organelle found within the cell of... Read More

Pad

pad 1. A soft, or small, cushion; a mass of anything soft; stuffing. 2. A kind of cushion for writing upon, or for blotting;... Read More

Cellulose

Cellulose Definition noun plural: celluloses cel·lu·lose, sĕl′yə-lōs (1) A polysaccharide consisting of a linear... Read More

Vertebra

Definition noun, plural: vertebrae, vertebras Any of the irregular bony structure with some hyaline cartilage that make up... Read More

Lysozyme

Definition noun, plural: lysozymes A glycosidase that assists in the hydrolysis of glycosidic bond between N-acetyl muramic... Read More

Eukaryotic cells

Eukaryotic Cells Definition What is a eukaryotic cell? The term “cell” is a common word in biology, anatomy, and... Read More

Postmortem

postmortem 1. After death; as, postmortem rigidity. Pertaining to or occurring during the period after death. 2.... Read More

Flaccid

Flaccid Definition Biology – What is Flaccid? In botany, the term flaccid refers to a cell that lacks turgidity, i.e. it... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Primary cell wall

Definition noun plural: primary cell walls ˈpɹaɪməɹi sɛl wɔːl The layer of the plant cell wall that forms prior to... Read More

Filtration

Filtration Definition What is filtration? Filtration is separating a solid from a fluid through a porous material that... Read More

Parenchyma

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

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More