Osteocyte & Osteoid – Biology Quiz 4
The key terms of Biology Quiz include, Long Bone, Canal, Cell, Osteocyte, Blood, Calcium, Osteoid.
This figure shows the gross anatomy of a long bone. Which number is referring to a perforating (or Volkmann’s) canal?
1
2
3
4
5 – correct
This figure shows the gross anatomy of a long bone. What bone feature does number 4 indicate?
Osteocyte in lacuna – correct
Trabeculae
Osteon
Canaliculus
Perforating canal
This figure illustrates the cell types found in bone. Which number indicates an osteocyte?
1
2
3
4 – correct
5
This figure illustrates the cell types found in bone. Which type of cell secretes osteoid?
1
2 – correct
3
4
None of the choices is correct
Which hormone normally has a more significant effect on blood calcium levels in adults?
Calcitonin
Parathyroid hormone – correct
Which is the definition for a greenstick fracture?
The bone is twisted as it fractures.
The fracture is at right angles to the long axis of the bone.
The bone is splintered into several fragments.
Only one side of the bone is broken; the other side is bent. – correct
The fracture is at an oblique angle to the long axis of the bone.
A fracture parallel to the long axis of the bone is a(n) _________ fracture.
transverse
oblique
linear – correct
comminuted
medial
The break of a bone that has been weakened by disease is a ________fracture; when a broken end of the bone pierces the skin, the fracture is ________.
stress, greenstick.
epiphyseal, stress.
greenstick, simple.
pathologic, compound. – correct
pathologic, simple.
Which is not involved in the process of bone repair following a fracture?
Fibroblasts produce collagen fibers to connect broken pieces of bone.
A fibrocartilaginous callus serves as a model for new bone growth.
Osteoclasts remove excess bone from the hard callus.
The fracture hematoma reorganizes to form a procallus.
No exceptions; all of the choices are involved in the process of bone repair. – correct
During bone repair, how long does the stage of the bony callus last?
12-24 hours
3-4 months – correct
1-2 years
8-10 days
1-2 weeks
The process of bone repair includes these steps:
a: Fracture hematoma forms
b: Bone is remodeled
c: Fibrocartilaginous callus forms
d: Bony callus forms
The correct chronological order for these steps is
a – c – d – b – correct
a – b – d – c
c – d – b – a
d – a – b – c
b – a – c – d
Which sex tends to lose more bone mass with aging?
Women – correct
Men
Which is a change in bone architecture or mass related to aging?
Insufficient calcification
Demineralization
Reduction in the organic content of the matrix
Loss of flexibility and increase in brittleness
All of the choices are correct – correct
This figure shows the anatomy of compact bone. Which number indicates an osteon?
1
2 – correct
3
4
5
This figure shows the gross anatomy of a long bone. Which number is referring to a perforating (or Volkmann’s) canal?
1
2
3
4
5 – correct
This figure shows the gross anatomy of a long bone. What bone feature does number 4 indicate?
Osteocyte in lacuna – correct
Trabeculae
Osteon
Canaliculus
Perforating canal
This figure illustrates the cell types found in bone. Which number indicates an osteocyte?
1
2
3
4 – correct
5
This figure illustrates the cell types found in bone. Which type of cell secretes osteoid?
1
2 – correct
3
4
None of the choices is correct