define phragmoplast
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- The phragmoplast is a plant cell specific structure that forms during late cytokinesis. It serves as a scaffold for cell plate assembly and subsequent formation of a new cell wall separating the two daughter cells.
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Diaphragm The diaphragm is a skeletal muscle that resides in the trunk of the body and separates the thoracic and abdominal cavities from one another. Its function occurs during breathing, where it contracts to enlarge the thoracic cavity and reduce the intrathoracic pressure, so that the lungs may expand and fill their alveoli with air.
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Plasmodesma Plasmodesmata (singular: plasmodesma) are microscopic channels which traverse the cell walls of plant cells[2] and some algal cells, enabling transport and communication between them.
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angioplasty Definition. 1  Angioplasty is a term describing a procedure used to widen vessels narrowed by stenoses or occlusions. There are various types of these procedures and their names are associated with the type of vessel entry and equipment used.
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- splanch·no·pleure. noun. A layer of cells in a vertebrate embryo, formed by association of part of the mesoderm with the endoderm and developing into the wall of the viscera. Origin of splanchnopleure. New Latin splanchnopleura : splanchno-, of viscera; see splanchnology + Greek pleura, side.
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- Definition of SARCOLEMMA. : the membrane enclosing a striated muscle fiber.— sar·co·lem·mal \-məl\ adjective. the membrane enclosing a striated muscle fiber.
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- Medical Definition of metaplasia. 1  1: transformation of one tissue into another metaplasia of cartilage into bone. 2  2: abnormal replacement of cells of one type by cells of another.
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Are Golgi vesicles the same as golgi apparatus in a typical animal cell? In plants, this structure coalesces into a cell plate at the center of the phragmoplast and develops into a cell wall, separating the two nuclei. The phragmoplast is a microtubule structure typical for higher plants, whereas some green algae use a phycoplast microtubule array during cytokinesis.
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- Definition: Pleura. The pleura refers to the two membranes that cover the lungs and line the chest cavity. The purpose of the pleura is to cushion the lungs during respiration. The pleural cavity is the space between these two membranes and contains pleural fluid. Structure of the Pleura.
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- Definition of POLYPLACOPHORA. : an order of Amphineura comprising the chitons all of which have the foot occupying the whole ventral surface of the body and the shell composed of eight calcified dorsal plates.
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Diaphragm Diaphragm is a muscular and tendinous sheath that closes the opening between thorax and abdomen and is pierced by structures that pass between these two regions of the body. The diaphragm is the primary muscle of respiration. It is dome shaped and consists of a peripheral muscular part and central tendinous part.The muscular part arises from the margins of the thoracic opening and gets inserted into the central tendon.diaphragm.penings in the diaphragm: All the structures that pass from the thorax into the abdomen or rise from abdomen into the thorax pass through the diaphragm. For this reason, diaphragm contains numerous openings.
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Diaphragm Diaphragm: The thin muscle below the lungs and heart that separates the chest from the abdomen. Source: National Institute of Health. Diaphragm: (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration. Source: WordNet 2.1.
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Thoracostomy A thoracostomy is a small incision of the chest wall, with maintenance of the opening for drainage. It is most commonly used for the treatment of a pneumothorax. This is performed by surgeons, emergency department physicians, and paramedics, usually via needle thoracostomy or with a thoracostomy tube (chest tube). A thoracostomy is commonly confused with thoracotomy, which is a larger incision commonly used to gain access to organs within the chest.
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Invasive Phragmites Invasive Phragmites (European Common Reed) is an invasive plant causing damage to Ontario’s biodiversity, wetlands and beaches. Invasive Phragmites is a perennial grass that has been damaging ecosystems in Ontario for decades. It is not clear how it was transported to North America from its native home in Eurasia. Invasive Phragmites is an aggressive plant that spreads quickly and out-competes native species for water and nutrients. It releases toxins from its roots into the soil to hinder the growth of and kill surrounding plants.
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pyloroplasty Pyloroplasty is an elective surgical procedure in which the lower portion of the stomach, the pylorus, is cut and resutured, to relax the muscle and widen the opening into the intestine.
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- Medical Definition of SARCOLEMMA. : the thin transparent homogeneous sheath enclosing a striated muscle fiber. the membrane enclosing a striated muscle fiber.
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diaphragm The esophagus, the aorta and vena cava, and nerves pass through the diaphragm. When relaxed, the diaphragm is convex but it flattens and moves caudally as it contracts during inhalation, thereby enlarging the chest cavity and allowing for expansion of the lungs. See also respiration.
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Everything you need to know about dry ears The result is dry, scaly patches and underlying redness, affecting the outer ear, scalp, and neck. Psoriasis can also make the skin itchy. Dermatitis: This is inflammation of the skin.
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PVR None. Plethysmography is a noninvasive diagnostic manometric study used to measure changes in the size of blood vessels by determining volume changes in the blood vessels of the eye, extremities, and neck or to measure gas volume changes in the lungs.
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Dictionary Definition Plastids are major organelles found in the cells of plants and algae. They are the site of manufacture and storage of important chemical compounds used by the cell. Plastids often contain pigments used in photosynthesis and the types of pigments present can change or determine the cell 's color.
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DIAPHRAGM / DIAPHRAGM /. A diaphragm is a shallow, dome-shaped cup made of silicone. (Honestly, it looks like Meg Griffin's hat on The Family Guy. Except it's only a few inches in diameter.) You insert the diaphragm into your vagina. Then it covers your cervix and keeps sperm out of your uterus.
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- By the depression of the convex portion of the diaphragm; 2d. The diaphragm is a membranous partition or fence between the thorax and abdomen. In front of the poles, surrounded by these coils of wire, is placed a diaphragm of iron.
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Pulse Oximeter Pleth (Plethysmograph) Pulse oximeter can measure your SpO2 and blood flow fluctuation. A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains). A photoplethysmograph (PPG) is a plethysmograph that uses optical techniques.
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Diaphragm Human Anatomy » Body Systems » Muscular System » Diaphragm. Diaphragm is a muscular and tendinous sheath that closes the opening between thorax and abdomen and is pierced by structures that pass between these two regions of the body. The diaphragm is the primary muscle of respiration. It is dome shaped and consists of a peripheral muscular part and central tendinous part.
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- sarcoplasm-the cytoplasm of a striated muscle fiber. cytol, cytoplasm-the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism.arcoplasm. n. 1. (Anatomy) the cytoplasm of a muscle fibre.
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Paralyzed Diaphragm Paralyzed Diaphragm. The diaphragm is a muscle that separates the chest (thoracic) and abdominal cavities and is controlled by the phrenic nerve. Diaphragmatic paralysis, whether it occurs in one or both sides of the diaphragm, is uncommon.