SKELETAL SYSTEM

Question 1

The skull is derived from several sources. Due to this complexity, it is named according to its embryonic origin. (3)

Answer 1

chondrocranium
dermatocranium
splanchnocranium

Question 2

origin of skull
is the original cartilaginous braincase, which later ossifies into cartilage bone (neurocranium).

Answer 2

chondrocranium

Question 3

origin of skull
dermal bones which later become attached to the surface of the chondrocranium.

Answer 3

dermatocranium

Question 4

origin of skull
(visceral skeleton) is composed of endoskeletal arches that support the gills but later develop as part of the braincase.

Answer 4

splanchnocranium