Peri Prefix Meaning in Biology

Peri Prefix Meaning in Biology The prefix (peri-) implies around, close, encompassing, covering, or encasing. It is gotten from the Greek peri for about, close, or around. Words That Begin With Peri Perianth (peri-anth): The external piece of a bloom that encases its conceptive parts is known as the perianth. The perianth of a blossom remembers the sepals and petals for angiosperms. Pericardium (peri-cardium): The pericardium is the membranous sac that encompasses and secures the heart. This three-layered film serves to keep the heart set up in the chest hole and forestalls over-extension of the heart. Pericardial liquid, which is situated between the center pericardial layer (parietal pericardium) and the deepest pericardial layer (instinctive pericardium), assists with diminishing grating between pericardial layers. Perichondrium (peri-chondrium): The layer of stringy connective tissue that encompasses ligament, barring ligament toward the finish of joints, is called perichondrium. This tissue covers ligament in structures of the respiratory framework (trachea, larynx, nose, and epiglottis), just as ligament of the ribs, external ear, and sound-related cylinders. Pericranium (peri-head): The pericranium is a layer that covers the external surface of the skull. Additionally called the periosteum, it is the deepest layer of the scalp that spreads bone surfaces aside from at the joints. Pericycle (peri-cycle): Pericycle is plant tissue that encompasses vascular tissue in roots. It starts the improvement of horizontal roots and is likewise associated with auxiliary root development. Periderm (peri-derm): The external defensive plant tissue layer that encompasses roots and stems is the periderm or bark. The periderm replaces the epidermis in plants that experience auxiliary development. Layers making the periderm incorporate plug, stopper cambium, and phelloderm. Peridium (peri-dium): The external layer that covers the spore-bearing structure in numerous organisms is known as the peridium. Contingent upon the contagious species, the peridium might be flimsy or thick with somewhere in the range of one and two layers. Perigee (peri-well): The perigee is the point in the circle of a body (moon or satellite) around the Earth where it is closest to the focal point of the Earth. The circling body voyages quicker at perigee than at some other point in its circle. Perikaryon (peri-karyon): Also known as cytoplasm, the perikaryon is the entirety of the substance of a cell encompassing however barring the core. This term additionally alludes to the cell body of a neuron, barring the axons and dendrites. Perihelion (peri-helion): The point in the circle of a body (planet or comet) around the sun where it comes nearest to the sun is known as the perihelion. Perilymph (peri-lymph): Perilymph is the liquid between the membranous maze and hard maze of the internal ear. Perimysium (peri-mysium): The layer of connective tissue that wraps skeletal muscle strands into groups is called perimysium. Perinatal (peri-natal): Perinatal alludes to the timeframe happening around the hour of birth. This period ranges from around five months before birth to one month after birth. Perineum (peri-neum): The perineum is the region of the body situated between the rear-end and genital organs. This locale ranges from the pubic curve to the tail bone. Periodontal (peri-odontal): This term actually implies around the tooth and is utilized to mean tissues that encompass and bolster teeth. Periodontal ailment, for instance, is a sickness of the gums that can extend from minor gum irritation to genuine tissue harm and tooth misfortune. Periosteum (peri-osteum): The periosteum is a double layered film that covers the external surface of bones. The external layer of the periosteum is thick connective tissue shaped from collagen. The inward layer contains bone-delivering cells called osteoblasts. Peristalsis (peri-stalsis): Peristalsis is the organized withdrawal of smooth muscle around substances inside a cylinder that moves the substance along the cylinder. Peristalsis happens in the stomach related tract and in rounded structures, for example, the ureters. Peristome (peri-stome): In zoology, the peristome is a layer or structure that encompasses the mouth in certain spineless creatures. In plant science, peristome alludes to little limbs (taking after teeth) that encompass the opening of a container in greeneries. Peritoneum (peri-toneum): The double layered film covering of the midsection that encases stomach organs is known as the peritoneum. The parietal peritoneum lines the stomach divider and the instinctive peritoneum covers the stomach organs. Peritubular (peri-rounded): This term portrays a place that is nearby or encompasses a tubule. For instance, the peritubular vessels are little veins that are situated around nephrons in the kidneys.