Skeletal System 8a Reading Check

How many bones does the human skeleton typically have at birth?

• 206

• 270

• 150

• 100

Which of the following is NOT a function of the skeletal system?

• Blood production in bone marrow

• Storage of calcium

• Regulation of body temperature

• Sound transduction

What is the name of the protein that gives bones the ability to withstand stretching forces?

• Osteocalcin

• Collagen

• Hydroxyapatite

• Calcium

Osteoblasts are responsible for:

• Breaking down bone

• Maintaining bone matrix

• Building bone matrix

• Storing fat

Compact bone makes up approximately what percentage of total bone mass?

• 20%

• 50%

• 80%

• 90%

Which type of bone is described as cube-shaped with a thin layer of compact bone?

• Long bones

• Irregular bones

• Short bones

• Sesamoid bones

What type of bone is embedded in tendons?

• Sesamoid bones

• Irregular bones

• Short bones

• Long bones

Trabecular bone, also known as spongy bone, has a higher surface area but accounts for what percentage of total bone mass?

• 20%

• 50%

• 80%

• 90%

Which of the following bones is NOT considered a flat bone?

• Sternum

• Skull

• Patella

• Ribs

What chemical formula represents the bone mineral hydroxyapatite?

• Ca10(PO4)6(OH)2

• H2O

• CO2

• NaCl

Tags

NGSS.MS-PS1-1