Vertebrate Skeletal System

Dentin is derived from what type of cell

• ameloblast

• osteoscyte

• chondrocyte

• odontoblast

Which of the following is not true on bones?

• development begins with blastema

• avascular

• the matrix becomes solid due to calcium and other inorganic salts

• osteocytes were enclosed by a lacuna

The average number of sacral vertebra in Primates

• 1 tro 3

• 2 to 4

• 3 to 5

• 2

Synsacrum is a vertebral bone found in which vertebrate group?

• reptilia

• aves

• fishes

• amphibians

A vertebra, when a centra and spine are fused as one

• holospondyly

• polyspondyly

• monospondyly

• diaspondily

It is a structure that passes through the lamellae

• lamellae

• lacuna

• canaliculi

• haversian canal

A type of skeletal system uses turgor pressure to give shape in the body

• endoskeleton

• chondroskeleton

• hydrostatic skeleton

• exoskeleton

A vertebra, when a centra and spine are fused as one

• holospondyly

• diplospondyly

• polyspondyly

• monospondyly

Sarcopterygians have this kind of tail

• homocercal

• heterocercal

• diphycercal

• hypocercal

It is considered as a primitive skull

• synapsid

• anapsid

• diapsid

• euryapsid