lec 4 prenatal lower limb development Flashcards
when do lower limb buds appear
week 4
when do lower buds become flattened and project at 90degree angle
week 5
when do knees point laterally
legs and feet rotated internally
week 6
when does free end of each lower limb turn 90 degrees medially
week 7
knees now point cranially/superiorly
soles of feet face each other
what happens in week 8
foot inhabits an equinus-supinates poition
rotation 1
coronal to parasagittal
rotation 2
medially along long axis of lower limb
lateral plate mesoderm destined to become
ligaments, bones, tendons, dermis
when is clearly defined footplate formed
week 5
when do toe rays become visible in foot plate
week 6
when do digits become webbed
week 7
ossification order
femur and tibia ilium metatarsals and phalanges ischium pubis tarsals
when do chrondrocytes form the 1st hyaline cartilage models and joints
week 6
posterior division of ventral rami supplies
developmentally dorsal muscles
anterior division of ventral rami supplies
developmentally ventral muscles
