Muscular System Development Quiz

From which germ layer does the muscular system primarily develop?

• Ectoderm

• Neuroectoderm

• Mesoderm

• Endoderm

What type of muscle is derived from visceral mesoderm surrounding the heart tube?

• Striated muscle

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

Which region of the somite forms the bone-forming cells for the vertebrae?

• Dermatome

• Sclerotome

• Myotome

• Mesoderm

What transcription factor regulates the development of tendons?

• BMP4

• MyoD

• SRF

• SHH

Which muscle type does not involve the fusion of myoblasts?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• Striated muscle

What is the primary source of smooth muscle in the gut?

• Visceral layer of lateral plate mesoderm

• Neural crest cells

• Ectoderm

• Paraxial mesoderm

Which factor is responsible for smooth muscle cell differentiation?

• SRF

• MyoD

• WNT

• SHH

What is the first indication of limb musculature observed during development?

• Fusion of myoblasts

• Condensation of mesenchyme

• Formation of somites

• Development of myofibrils

Which part of the skull is formed from neural crest cells and paraxial mesoderm?

• Membranous neurocranium

• Viscerocranium

• Neurocranium

• Chondrocranium

What is the primary function of the lateral somitic frontier?

• Forms the neural tube

• Induces muscle differentiation

• Defines dermis borders

• Separates muscle types