Term
| epithelial ectoderm, neural tube, neural crest cells, chordamesoderm, paraxial mesoderm, lateral mesoderm, intermediate mesoderm, primodial germ cells, endoderm |
|
Definition
| list the major tissues that exist in the fetus just after neurulation |
|
|
Term
|
Definition
| what does extraembryonic mesoderm form? |
|
|
Term
| paraxial, intermediate, and lateral plate |
|
Definition
| 3 regions of inter-embryonic mesoderm |
|
|
Term
|
Definition
| another name for the notochord |
|
|
Term
|
Definition
| longitudinal blocks of tissue on either side of the notochord. It gives rise to the axial skeleton and skeletal muscle. Will organize into somites, part goes to the head |
|
|
Term
|
Definition
| it gives rise to the urogenital system + kidneys |
|
|
Term
|
Definition
| gives rise connective tissue and skeleton of the limbs and smooth muscle and connective tissue of viscera and blood vessels. Does not give rise to skeletal muscle! |
|
|
Term
|
Definition
| A ‘segmented’ series of tissue blocks on each side of the neural tube |
|
|
Term
|
Definition
| what are the 7 more cranial chunks of paraxial mesoderm called? |
|
|
Term
|
Definition
| what is the name fore the chunks of mesoderm that run caudally from the occipital region |
|
|
Term
|
Definition
| give rise to head mesoderm, some muscles & bones of neurocranium. |
|
|
Term
|
Definition
| most of the face forms from this |
|
|
Term
|
Definition
| condenses to form somites |
|
|
Term
|
Definition
| what direction are somites added |
|
|
Term
| sclerotome (cartilage), myotome(skeletal muscle), dermatome (dermis). |
|
Definition
| what are the 3 parts from somites |
|
|
Term
| no, they both form from ectoderm, thats it. no attachment |
|
Definition
| is surface ectoderm connected to the neural tube in any way? |
|
|
Term
|
Definition
| what kind of folding forms the abdominal cavity? |
|
|
Term
|
Definition
| part of the somite that becomes the dermis |
|
|
Term
|
Definition
| part of somite that gives rise to muscles |
|
|
Term
|
Definition
| epidermis (surface ectoderm) & dermis (somite) together makes what |
|
|
Term
|
Definition
| dermomyotome splits into what |
|
|
Term
| move medially and condense around the notochord |
|
Definition
| where do sclerotome cells move to form the vertebrae |
|
|
Term
|
Definition
| which hox genes do cervical vertebrae |
|
|
Term
|
Definition
| which hox genes do thoracic vertebrae |
|
|
Term
|
Definition
| which hox genes do lumbar, sacral, and coccygeal |
|
|
Term
| some migrating ones go to body wall and limbs, some stay put and make body wall |
|
Definition
| some myotome cells migrate, some stay put, what do they become |
|
|
Term
| dorsal epimere and ventral hypomere |
|
Definition
| myotome splits into what 2 structures? |
|
|
Term
|
Definition
| secreted by notochord & floor plate & induces sclerotome differentiation |
|
|
Term
|
Definition
| proteins from dorsal neural tube induce epaxial muscle formation |
|
|
Term
| BMP4, FGF (lateral plate) & WNT (epidermis) |
|
Definition
| induce formation of hypaxial (limb & body wall) musculature. |
|
|
Term
dorsal epaxial, intrinsic deep muscles
ventral hypaxial, extrinisic superficial musc of back |
|
Definition
| dorsal and ventral rami go to ___ and ___ |
|
|
Term
|
Definition
| spinal roots come from what |
|
|
Term
|
Definition
| rami come from what structure |
|
|
Term
|
Definition
| dorsal root does what (sensory or motor) |
|
|
Term
|
Definition
| ventral root does what? (sensory or motor) |
|
|
Term
|
Definition
| roots are either __ or __ |
|
|
Term
|
Definition
| rami are either ___ or ___ |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
Moves to position on posterior abdominal wall.
Form gonads (except primitive germ cells)
Forms ducts, accessory glands of urinary and reproductive tracts |
|
|
Term
|
Definition
| total or partial failure of development of the lower vertebrae, including the sacrum, which results in associated abnormalities of the lower extremities, spine, kidneys, gastrointestinal and genitourinary tract |
|
|
Term
| sacral agenesis, sacral regression, caudal aplasia, caudal regression sequence, sirenomelia |
|
Definition
| other names of caudal dysplasia |
|
|
Term
|
Definition
| the most severe end of the spectrum of caudal regression syndrome with fusion of the lower limbs |
|
|
Term
| caudal regression syndrome |
|
Definition
| may reflect a toxic, infective or ischemic insult and there is a significant association with maternal diabetes |
|
|
Term
| rare in normal pop, 1/350 of diabetic mothers (200 fold increase) |
|
Definition
| how common is caudal regression syndrome? |
|
|
Term
| somatic and splanchnic mesoderm layers |
|
Definition
| lateral plate mesoderm is in two c shaped chunks, what are they? |
|
|
Term
| skeletal muscle and body wall |
|
Definition
| what does the somatic part of lateral mesoderm become |
|
|
Term
|
Definition
| what does the splanchnic part of lateral mesoderm become |
|
|
Term
| inner, outer closes slow -this forms 2 separate layers |
|
Definition
| which layer of lateral mesoderm closes first |
|
|
