Flashcards in Embryo II (Lect) Deck (31)
The neural plate is composed of which of the following types of cells?
What are the cells that line the digestive tract derived from?
What cell line may be responsible for malfomations of the urinary bladder and heart?
During which weeks does spina bifida manifest?
4 to 6 (mainly 4)
What is it called when digits are fused?
If a newborn suffers from server lumbar scoliosis what is most likely the embryological basis for this anomaly?
Sclerotomal cells did not migrate and differentiate on one side of the lumber neural tube
What tissue gives rise to the muscles of the abdominal wall?
Where are most of the skeletal muscles in the head derived from?
phayngeal arch mesoderm
What substance can be supplemented to reduce the effects of NTDs?
What induces neurulation?
presence of the notocord
If you have a hypertrophied nuclea pulposa in several discs what embyonic structure may have not developed correctly?
Keritinized epithelium is derived from which germlayer?
T or F: postganglionic neurons in chain ganlia and collateral ganglia are derived from the same embryonic primordium as the DRG?
Which myelinating cellis would be affected by a loack of development of the neural crest cell population?
Tissue in the CNS is derived from what type of embryonic cells?
The PNS is derived mostly from which types of cells?
Tissues on the surface of the body are mostly derived from...
C-cell in the thymus are derived from...
neural crest cells
What are the three systems derived from the mesoderm?
musculoskeletal, urogenital, CV
What is brachdactyly
shortened limb from missing bone
what is phocomelia?
abnormal formation of limbs
What is adactylia?
absence of digits
What type of mesoderm forms the urogenital tract?
What type of mesoderm gives rise to all smooth muscle besides the urogenital system (e.g. GI, cardiac, vessels)?
sphlanchnic lateral plate mesoderm
What gives rise to the muscles of the deep back on neck?
What gives rise to the skeletal muscle that is not in the deep back and neck?
Where do skeletal elements of the limb arise from?
lateral plate mesoderm
What cells are responsible for pigment?
When does nuerulation complete?