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Multiple Choice
Which embryonic tissue gives rise to most of the muscle and connective tissues in the body?
A
Ectoderm
B
Mesoderm
C
Neural crest
D
Endoderm
Verified step by step guidance
1
Step 1: Understand the role of embryonic tissues in development. During embryogenesis, the body forms three primary germ layers: ectoderm, mesoderm, and endoderm. Each layer contributes to specific structures in the body.
Step 2: Recall the functions of the ectoderm. The ectoderm primarily gives rise to the nervous system, skin, and related structures, not muscle or connective tissues.
Step 3: Recall the functions of the mesoderm. The mesoderm is responsible for forming most of the muscle tissues, connective tissues (such as bone, cartilage, and blood), and other structures like the cardiovascular system.
Step 4: Recall the functions of the endoderm. The endoderm primarily forms the lining of the digestive and respiratory tracts, as well as associated organs like the liver and pancreas.
Step 5: Consider the neural crest. The neural crest is a specialized group of cells derived from the ectoderm that contributes to specific structures like peripheral nerves, pigment cells, and parts of the skull, but not the majority of muscle or connective tissues.