Nerve and Muscle Embryology Flashcards
Pinhal-Enfield's Lecture
The Sulcus Limitans is responsible for splitting the Neural tube and resulting in ____ and ____ polarities
Ventral, Dorsal
The embryonic ____ layer will become Gray Matter
Mantle
The embryonic _____ layer will become white matter
Marginal
The Alar and Basal plates are found within the _____ layer of the embryo
Mantle
The Alar plate of the embryo will give rise to ____ Root
Dorsal
The Basal plate of the embryo will give rise to the ____ Root
Ventral
Neuroepithelium gives rise to Neurons and Neuroglia of the _____ Nervous System
Central
Migratory Neural Crest gives rise to Neurons and Neuroglia of the _____ nervous system
Peripheral
Autonomic Ganglia are found in the _____ Root
Ventral
Sensory neurons, peripherally projecting processes from receptors, and centrally-projecting processes going to spinal cord all originate from the ______ root ganglia
Dorsal
Sclerotomes, Dermatomes, and Myotomes are all found within each block of the _____ Mesoderm, which branches off of the Paraxial Mesoderm
Somite
The _____ _____ Mesoderm, gives rise to the parietal/somatic mesoderm, which helps make mesenchyme to create tendons, ligaments, cartilage, bone, or dermis
Lateral Plate
Why is skeletal muscle multi-nucleated?
From multiple myoblast fusion
Both the mesoderm and ectoderm play a role in the formation of connective tissue because they both can make ______ cells
Mesenchymal
Scelerotomes are responsbile for making ______, _____, and _____
Bone of Skull, vertebral column and ribs
The process whereby the sclerotomes split into caudal and cranial and then fuse together along the notochord is known as _____
Resegmentation
While the Notochord makes the Nucleus Pulposus, the _____ is responsible for making the Anulus Fibrosis
Sclerotome
In regards to Limb-bud formation, factors are produced to push the ______ _____ ___ Away and allow the mesenchyme to differentiate.
Apical Ectodermal Ridge (AER)
The ZPA is responsible for what limb bud differenation process?
Digit separation
Endochondral vs Intramembranous Ossification?
Endo gets cartilage replaced
Intramem doesn’t
Limb growth plates are found between the _____ ossification center in the diaphysis and the _____ ossification center in the epiphysis
Primary, Secondary
