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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
In animal development, organogenesis is the process by which the ectoderm, endoderm, and mesoderm develop into the internal organs of the organism. The germ layers in organogenesis differ by three processes: folds, splits, and condensation. Developing early during this stage in chordate animals are the neural tube and notochord. Vertebrate animals all differ from the gastrula the same way. Vertebrates develop a neural crest that differentiates into many structures, including some bones, muscles, and components of the peripheral nervous system. The coelom of the body forms from a split of the mesoderm along the somite axis.
The proceeding graph represents the products produced by the three germ layers.
|Endoderm||General||Endocrine glands and organs (liver and pancreas)|
|Mesoderm||General||Most of the Circulatory system|
|Mesoderm||General||Connective tissues of the gut and integuments|
|Mesoderm||Vertebrate||Lateral plate mesoderm|
|Ectoderm||General||Outer part of integument|
|Ectoderm||Vertebrate||Skin (along with glands, hair, nails)|
|Ectoderm||Vertebrate||Epithelium of the mouth and nasal cavity|
|Ectoderm||Vertebrate||Lens and cornea of the eye|
|Ectoderm||Vertebrate||Peripheral nervous system|
|Ectoderm||Vertebrate||Dentin (in teeth)|
|Ectoderm||Vertebrate||Brain (rhombencephalon, mesencephalon and prosencephalon)|
|Ectoderm||Vertebrate||Spinal cord and motor neurons|
- Germ layer
- Eye development
- Heart development
- Limb development
- Germ line development
- Evers, Christine A., Lisa Starr. Biology:Concepts and Applications. 6th ed. United States:Thomson, 2006. ISBN 0-534-46224-3.
|Mammalian development of embryo and development and fetus (some dates are approximate - see Carnegie stages) - edit|
Week 3: Hensen's node | Gastrula/Gastrulation | Trilaminar embryo Branchial arch (1st) | Branchial pouch | Meckel's cartilage | Somite/Somitomere | Germ layer (Ectoderm, Endoderm, Mesoderm, Chordamesoderm, Paraxial mesoderm, Intermediate mesoderm, Lateral plate mesoderm)
|Histogenesis and Organogenesis|
Circulatory system: Primitive atrium | Primitive ventricle | Bulbus cordis | Truncus arteriosus | Ostium primum | Foramen ovale | Ductus venosus | Ductus arteriosus | Aortic arches | Septum primum | Septum secundum | Cardinal veins
Urinary/Reproductive system: Urogenital folds | Urethral groove | Urogenital sinus | Kidney development (Pronephros | Mesonephros | Ureteric bud | Metanephric blastema) | Fetal genital development (Wolffian duct | Müllerian duct | Gubernaculum | Labioscrotal folds)
Histogenesis • Organogenesis
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