Anatomy Content Quiz 5.3

Formation of the bony skeleton begins when?

• 5 weeks of embryo development

• 6 weeks of embryo development

• 2 weeks of embryo development

• 8 weeks of embryo development

Intramembranous Ossification

• Bone develops by replacing cartilage

• Bone develops from cartilage membrane

• Bone develops from fibrous membrane — membrane bone

• Bone develops by replacing connective tissue

What does intramembranous ossification form?

• Cranial bones of the skull (frontal, parietal, occipital, temporal), and collar bone

• All bones below the skull

• Trick question: it doesn’t form any bones

• All bones apart of the bone chart

Intramembranous ossification bone shape

• Irregular

• Flat

• Long

• Proximal

Supporting structures of Intramembranous ossification

• Mesenchymal (middle layer) cells

• Areolar (irregular dense connective tissue) cells

• Areolar (dense connective tissue) cells

• Chrondrocytes (cartilage) cells

Endochondral ossification

• Bone forms from fibrous membrane

• Bones form from citrus membrane

• Bone forms by replacing hyaline cartilage

• Bone forms by replace Areolar cartilage

What does endochondrial ossification form?

• Trick question: it doesn’t form any bones

• All bones from the tarso up

• Cranial, pariteal , and collar bone

• All bones below the skull

What does endochondral ossification do?

• Uses hyaline cartilage “bones” formed earlier as models or patterns for bone construction

• Uses Areolar tissue “ctp” formed earlier as models or patterns for bone construction

• Uses fibrous membrane “membrane bone” formed earlier as models or patterns for bone construction

• Uses elastic cartilage “stretch” formed earlier as models or patterns for bone construction

Formation of bone order

• 1) bone collar 2) hollow hyaline cartilage model 3) invasion of internal cavities 4) formation of the medullary cavity 5) ossification of epiphyses

• 1) ossification of epiphyses 2) formation of the medullary cavity 3) invasion of internal cavities 4) hollow hyaline cartilage model 5) bone collar

• It does go in an order. They all happens at the same time once the embryo reaches 8 seeks

• 1) invasion of internal cavities 2) hollow hyaline cartilage model 3) ossification of epiphyses 4) formation of the medullary cavity 5) bone collar

Tags

NGSS.HS-LS1-2

Long bones ___ entirely by ___ growth of the epiphyseal plate

• Lengthen, appendicular

• Thicken, interstitial

• Thicken, lengthen

• Length, interstitial