Unit 3: Skeletal System - Midterm Review

Hemopoiesis is the process of

•  bone formation 

•  cartilage formation

•  blood cell production

• entrapment of blood vessels by developing bone 

 Which bone cells secrete osteoid (the initial semisolid form of bone matrix)?

•  osteocytes

•  osteoprogenitor cells

•  osteoblasts

•  osteoclasts 

Which of the following are components of compact bone, but not of spongy bone

•  concentric lamellae

•  osteocytes

•  canaliculi

•  all of the above are found in spongy bone 

At the end of a long bone is an expanded region called the

•  endophysis

•  metaphysis

•  diaphysis

•  epiphysis

 Long bones such as the humerus have solid external walls of _________________ bone, with _____________ bone found primarily within the epiphyses.

•  spongy, compact

•  dipole, circumferential 

•  compact, spongy

•  none of the above 

Yellow bone marrow contains a large proportion of

•  reticulocytes 

•  fatty tissue

• fibroblasts 

•  elastic fibers 

 ________________________ produce new bone, while ____________________ resorb bone.

•  osteoclasts, osteocytes

•  osteoblasts, osteoclasts

•  osteoclasts, osteoblasts

•  osteocytes, osteoblasts

A typical example of a long bone is the

•  patella

•  tibia 

•  ethmoid 

•  sternum 

Vertebrae are classified as

•  short bones

•  long bones 

•  irregular bones 

•  flat bones 

Which of the following is not a function of periosteum?

• anchors blood vessels and nerves to the surface of the bone

• serves as an attachment site for muscles and ligaments

•  provides a smooth surface for articulation between bones

•  contains cells for bone growth and repair