what is a zygoma
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Zygoma The term zygoma generally refers to the zygomatic bone, a bone of the human skull commonly referred to as the cheekbone or malar bone, but it may also refer to: 1  The zygomatic arch, a structure in the human skull formed primarily by parts of the zygomatic bone and the temporal bone. The zygomatic process, a bony protrusion of the human skull, mostly composed of the zygomatic bone but also contributed to by the frontal bone, temporal bone, and maxilla.
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The Zygomatic Bone The Zygomatic Bone. The zygomatic bone (also known as the zygoma) is one of the most irregular shaped bones of the skull. It consists of three different processes, varying in size and shape. Because the pair of them protrude laterally and form the eminences of the face (cheek bones), both are prone to fractures.
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- zy·gote. n. 1. The cell formed by the union of two gametes, especially a fertilized ovum before cleavage. 2. The organism that develops from a zygote. [From Greek. , yoked, from., to yoke; see yeug-in Indo-European roots .]. zy·got′ic (-gŏt′ĭk) adj.zy·got′i·cal·ly adv.y·gote. n. 1. The cell formed by the union of two gametes, especially a fertilized ovum before cleavage. 2. The organism that develops from a zygote. [From Greek. , yoked, from.
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What is a Zygote? You won't believe these 10 facts about people. A zygote is a single cell which has formed as the result of the merging of an egg cell and a sperm cell. In other words, it's a fertilized egg, with the potential to develop into a living organism. The formation of a zygote represents the moment at which conception occurs, making it an important landmark in the process of fetal development from an ethical, legal, and moral standpoint as well as a scientific one.
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- The earliest of these is known as the zygote phase. What exactly is a zygote and what takes place during this very early stage of prenatal development? You may have heard of the term zygote before, but what exactly does it mean? A zygote is essentially the union of the sperm and the egg cell. The zygote begins as a single cell but begins to divide rapidly in the days following fertilization. As most people who are familiar with the birds and the bees already know, male sex cells are known as sperm and female sex cells are known as eggs.
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Zygosity Zygosity is the degree of similarity of the alleles for a trait in an organism. Most eukaryotes have two matching sets of chromosomes; that is, they are diploid. cell is said to be homozygous for a particular gene when identical alleles of the gene are present on both homologous chromosomes. The cell or organism in question is called a homozygote. True breeding organisms are always homozygous for the traits that are to be held constant.
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Zygote A zygote (from Greek ζυγωτός zygōtos joined or yoked, from ζυγοῦν zygoun to join or to yoke), is an eukaryotic cell formed by a fertilization event between two gametes. The zygote's genome is a combination of the DNA in each gamete, and contains all of the genetic information necessary to form a new individual. In multicellular organisms, the zygote is the earliest developmental stage. In single-celled organisms, the zygote can divide asexually by mitosis to produce identical offspring. Oscar Hertwig and Richard Hertwig made some of the first discoveries on animal zygote formation.
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Noma Noma is a type of gangrene that destroys mucous membranes of the mouth and other tissues. It occurs in malnourished children in areas of poor cleanliness.
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Zygomaticus Minor Muscle ANATOMY. Zygomaticus Minor Muscle is one of the 36 facial muscles. The muscle arises from the Malar Bone (Zygomatic Bone) and connects with Orbicularis Oculi (muscle of face that closes eyelids). Arising from the Zygomatic Bone, it is a thin band of muscle on each side of face.
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zygote zygote. the cell resulting from union of a male and a female gamete; the fertilized ovum (see also reproduction). More precisely, the cell after synapsis at the completion of fertilization until first cleavage. adj., adj zygot´ic. Development of the zygote.
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Zygomatic arch Zygomatic arch. Zygomatic arch, bridge of bone extending from the temporal bone at the side of the head around to the maxilla (upper jawbone) in front and including the zygomatic (cheek) bone as a major portion. The masseter muscle, important in chewing, arises from the lower edge of the arch; another major chewing muscle, the temporalis, passes through the arch.
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Description Also known as zygapophyseal or apopphyseal joint, is a synovial joint between the superior articular process of one vertebra and the inferior articular process of the vertebra directly above it.
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Zygomaticus major muscle The zygomaticus major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly (smile).
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Zygomaticus major Zygomaticus major. The zygomaticus major muscle is a muscle that controls facial expression, drawing the mouth's angle upward and outward. The zygomaticus major muscle starts at the cheekbone and extends to the corner of the mouth.This muscle causes the corners of a person's mouth to rise when they smile.Variations of the zygomaticus major muscle cause dimples to form.he zygomaticus major muscle starts at the cheekbone and extends to the corner of the mouth. This muscle causes the corners of a person's mouth to rise when they smile.
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Zygomaticus Major Muscle The zygomaticus minor is a small bundle of muscle fibers lying in the area of the cheek. Together with two other muscle bundles, it forms the nasolabial furrow, from the side of the nose to the upper lip, which is deepened in expressions of sadness. The zygomaticus major is larger than the minor, but ... Click to read more below. The zygomaticus major muscle is one of two zygomaticus muscles, the zygomaticus minor and zygomaticus major, which are two facial muscles that aid in articulation of the mouth, nose, and cheeks. The zygomaticus minor is a small bundle of muscle fibers lying in the area of the cheek.
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Zygote In fungi, the sexual fusion of haploid cells is called karyogamy. The result of karyogamy is a diploid cell called a zygote or zygospore. This cell may then enter meiosis or mitosis depending on the life cycle of the species.n plants, the zygote may be polyploid if fertilization occurs between meiotically unreduced gametes. In land plants, the zygote is formed within a chamber called the archegonium. In seedless plants, the archegonium is usually flask-shaped, with a long hollow neck through which the sperm cell enters.
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- Zygotes are the original cell that is formed when the animal sperm and egg cells combine. Originally a zygote is only 1 cell, but it begins to divide through the process of mitosis until it becomes much larger, eventually developing into an embryo, then fetus, and eventually, a developing baby.ygotes are only formed through the process of [b]fertilization[/b], which is the actual combining of a male sperm cell and a female egg cell.
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- A zygote is a cell formed by two gametes after fertilization. A zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction. In multicellular organisms, it is the earliest developmental stage of the embryo.
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What Happens to a Zygote Following Fertilization? A fertilized egg is called a zygote until it divides into 16 cells, forming a ball-shaped structure called a morula. The events during the zygote stage involve the integration of both parents' DNA into the cell nucleus and the beginning of rapid cell division, or cleavage. In humans, it takes about four days for a zygote to become a morula and another three days until the embryo attaches itself to the mother’s uterine wall.
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Zygote 7 definitions Zygote from IUPAC Glossary of Terms Used in Toxicology, 2nd Edition (2007) by National Library of Medicine, Division of Specialized Information Systems Cell such as a fertilized egg resulting from the fusion of two gametes. Cell obtained as a result of complete or partial fusion of cells produced by meiosis.
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- Full Definition of ZYGOTE. : a cell formed by the union of two gametes; broadly: the developing individual produced from such a cell. — zy·got·ic \zī-ˈgae-ˈgä\ tik. Adjective see zygote defined For-english language. learners a cell formed by the union of two gametes; broadly: the developing individual produced from such a cell. — zy·got·ic \zī-ˈgae-ˈgä\ tik. Adjective see zygote defined For-english language. Learners see zygote defined for. kids
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zygote The definition of a zygote is the cell that forms by the union of an egg cell and a sperm cell. A fertilized female egg from which a baby will develop is an example of a zygote. a diploid cell formed by the union of two haploid gametes, esp. by the union of an egg cell and a sperm cell.
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Zygote A zygote (from Greek ζυγωτός zygōtos joined or yoked, from ζυγοῦν zygoun to join or to yoke), is an eukaryotic cell formed by a fertilization event between two gametes. The zygote's genome is a combination of the DNA in each gamete, and contains all of the genetic information necessary to form a new individual.
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Contents: Gamete vs Zygote Gamete refers to a haploid sex cell that is a sperm in males and egg (oocyte) in females. Zygote is the diploid cell that results from the fertilization between an egg and a sperm. In mammals, the sperm (male gamete) fertilizes the egg (ovum, the female gamete) and the fertilized egg is called a zygote.
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What Happens to a Zygote After Fertilization? Quick Answer. A zygote is the first stage of prenatal development and is just a group of non-differentiated cells. An embryo is much larger and its cells begin to differentiate. The zygote phase is directly followed by the embryo stage. Continue Reading.
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- Search. Also known as zygapophyseal or apopphyseal joint, is a synovial joint between the superior articular process of one vertebra and the inferior articular process of the vertebra directly above it. There are two facet joints in each spinal motion segment.