Information about Neuroectoderm
| Precursor | ectoderm | |
| Gives rise to | neural tube, neural crest | |
| Dorlands/Elsevier | n_06/12568545 | |
The types of neuroectoderm include:
- Neural crest
- pigment cells in the skin
- ganglia of the autonomic nervous system
- dorsal root ganglia.
- schwann cells
- facial cartilage
- spiral septum of developing heart
- ciliary body of the eye
- adrenal medulla
- Neural tube
- brain (rhombencephalon, mesencephalon and prosencephalon)
- spinal cord and motor neurons
- retina
- posterior pituitary
See also
External links
- Neuroectoderm at eMedicine Dictionary
- Embryology at UNC bdyfm-007
- http://sprojects.mmi.mcgill.ca/embryology/earlydev/week3/neurulation.html
- http://www.med.umich.edu/lrc/coursepages/M1/embryology/embryo/08nervoussystem.htm
Prenatal development/Mammalian development of nervous system | |
|---|---|
| General neural development/Neurulation | Neurula - Notochord - Neural folds - Neuroectoderm - Neural plate - Neural groove Neural crest - Neural tube (Neuromere/Rhombomere, Cephalic flexure) |
| Eye development | Optic vesicles - Optic stalk - Optic cup |
| Auditory development | Auditory vesicle - Auditory pit |
Embryology is the study of the development of an embryo. An embryo is defined as any vertebrate in a stage before birth or hatching. Embryology refers to the development of the egg cell (zygote) after fertilization and the differentiation of cells into tissues and organs.
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The ectoderm is the start of a tissue that covers the body surfaces. It emerges first and forms from the outermost of the germ layers.
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What forms from it (general)?
- Nervous system
- Outer part of integument
What forms from it (vertebrates)?
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neural tube is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into a
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The neural crest, a transient component of the ectoderm, is located in between the neural tube and the epidermis (or the free margins of the neural folds) of an embryo during neural tube formation.
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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The ectoderm is the start of a tissue that covers the body surfaces. It emerges first and forms from the outermost of the germ layers.
..... Read more.
What forms from it (general)?
- Nervous system
- Outer part of integument
What forms from it (vertebrates)?
..... Read more.
Noggin is a polypeptide that binds to members of the TGF-β superfamily of proteins. It is a Bone morphogenetic protein inhibitor. Noggin plays a key role in neurulation by inhibiting BMP4, along with other morphogens such as chordin and follistatin and inducing the
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nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and also stops input from the senses, and initiates actions. Prominent parts of a nervous system include neurons and nerves, which are used in coordination.
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The neural crest, a transient component of the ectoderm, is located in between the neural tube and the epidermis (or the free margins of the neural folds) of an embryo during neural tube formation.
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Melanocytes are cells located in the bottom layer (the stratum basale) of the skin's epidermis and in the middle layer of the eye (the uvea).
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Melanogenesis
Through a process called melanogenesis..... Read more.
ganglion (pl. ganglia) is a tissue mass, which is composed mainly of somata and dendritic structures, which often interconnect with each other to form a complex system of ganglia known as a plexus.
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autonomic nervous system (ANS) (or visceral nervous system) is the part of the peripheral nervous system that acts as a control system, maintaining homeostasis in the body. These maintenance activities are primarily performed without conscious control or sensation.
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In anatomy and neurology, the dorsal root ganglion (or spinal ganglion) is a nodule on a dorsal root that contains cell bodies of neurons in afferent spinal nerves.
The axons of dorsal root ganglion neurons are known as afferents.
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The axons of dorsal root ganglion neurons are known as afferents.
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Named after the German physiologist Theodor Schwann, Schwann cells (also referred to as neurolemmocytes) are a variety of glial cell that mainly provide myelin insulation to axons in the peripheral nervous system of jawed vertebrates.
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Cartilage is a type of dense connective tissue. It is composed of collagen fibers and/or elastin fibers, and can supply smooth surfaces for the movement of articulating bones.
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The aorticopulmonary septum (also called the spiral septum, or aortic septum in older texts) is developmentally formed from neural crest, specifically the cardiac neural crest, and actively separates the aorta and pulmonary arteries and fuses with the
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heart is a muscular organ responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in the annelids, mollusks, and arthropods.
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The ciliary body is the circumferential tissue inside the eye composed of the ciliary muscle and ciliary processes.[1] It is part of the uveal tract—the layer of tissue which provides most of the nutrients in the eye.
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adrenal medulla is part of the adrenal gland. It is located at the center of the gland, being surrounded by the adrenal cortex.
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Function
Composed mainly of hormone-producing chromaffin cells, the adrenal medulla is the principal site of the conversion of the amino acid..... Read more.
neural tube is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into a
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In animals, the brain or encephalon (Greek for "in the skull"), is the control center of the central nervous system, responsible for behavior. The brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing,
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The rhombencephalon (or hindbrain) is a developmental categorization of portions of the central nervous system in vertebrates.
The rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres.
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The rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres.
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In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. Caudally the mesencephalon adjoins the pons (metencephalon) and rostrally it adjoins the diencephalon
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In the anatomy of the brain of vertebrates, the prosencephalon (or forebrain) is the rostral-most portion of the brain. The prosencephalon, the mesencephalon (midbrain), and rhombencephalon (hindbrain) are the three primary portions of the brain during early development of
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spinal chord is a thin, tubular bundle of nerves that is an extension of the central nervous system from the brain and is enclosed in and protected by the bony vertebral column.
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Location Ventral horn of the spinal cord
Function Excitatory projection (to NMJ)
Neurotransmitter ACh
Morphology Projection neuron
Presynaptic connections M1 via the Corticospinal tract
Postsynaptic connections
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Function Excitatory projection (to NMJ)
Neurotransmitter ACh
Morphology Projection neuron
Presynaptic connections M1 via the Corticospinal tract
Postsynaptic connections
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- For the moth genus, see Retina (moth).
The retina is a thin layer of neural cells that lines the back of the eyeball of vertebrates and some cephalopods. It is comparable to the film in a camera.
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The posterior pituitary (or neurohypophysis) comprises the posterior lobe of the pituitary gland and is part of the endocrine system.
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Anatomy
The Posterior Pituitary Gland..... Read more.
In human embryology, formation of neural plate is the first step of neurulation. It is created by a flat thickening opposite to the primitive streak.
As it develops, it becomes surrounded by neural folds, which eventually create the cylindrical neural tube.
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As it develops, it becomes surrounded by neural folds, which eventually create the cylindrical neural tube.
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eMedicine is an online clinical medical knowledge base that was founded in 1996 by Scott Plantz and Richard Lavely, two medical doctors. It was sold to WebMD in January 2006.
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