14 Questions
What is the primary reason that vertebrae are segmentally repeated?
Due to the primary segmentation of the myotomes
Which type of bone is formed through the replacement of pre-existing cartilage?
Cartilage bone
What is the middle stage in the typical development of the endoskeleton?
Cartilage
Which type of bone is stiffened by the deposition of calcium salts in some lower vertebrates?
Calcified bone
What is the endoskeleton stage where mesenchyme accumulates in the skeletal regions?
Membranous stage
Which type of bone arises directly from mesenchyme without passing through a cartilage stage?
Membrane bone
What happens to most vertebrates' cartilage during development?
It becomes ossified.
What does it mean when cartilage is said to be calcified?
It gets stiffened by calcium salts.
Which type of bones are produced directly from mesenchyme without involving cartilage?
Membrane bones
In which animal's vertebral column do we find the presence of dermatocranium and chondrocranium parts?
Shark
Which part of the axial skeleton is shared by chicken and cat?
Sternum
What is unique about the chondrocranium and splanchnocranium of a shark compared to other animals?
They are solely made of cartilage
Which animal's vertebral column includes dermatocranium, chondrocranium, and splanchnocranium parts?
Shark
What is a common skeletal feature between turtle and chicken based on the provided text?
Hyoid Bone
Learn about the origin and development of mesenchyme for the vertebral column and ribs, including the contribution from sclerotomes and other mesodermal sources. Understand how skeletogenous mesenchyme accumulates and the role of myotomes in the arrangement of skeletal structures.
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