CH 7 BONE TISSUE
Lacunae
small cavities in bone that contain osteocytes
Which of the following would directly affect osseous tissue?
A Vitamin-C deficiency
Each of the following complications listed below is a result of a homeostatic calcium imbalance. Which would not be life threatening?
A deficit of appositional bone growth
central canal
A tiny channel found within the spinal cord and inferior medulla oblongata
During appositional bone growth, concentric layers of new bone that fill in the tunnel form
Osteons
In an adult, which of the following is a bone that does not contain red bone marrow?
Radius
If the __________ component of bone is not in adequate amounts, the flexibility of bone will be compromised.
collagen
Osteogenesis imperfecta is due to the deficiency of __________ in the matrix, which makes the bones extremely brittle.
collagen
A __________ fracture is one in which the bone is broken into three or more pieces.
comminuted
palatine horizontal plate
forms the posterior portion of the hard palate
In appositional bone growth, new bone is deposited around a
Blood vessel
__________ is/are found in compact bone but not spongy bone.
Central canals
canaliculi
Compact bone Hairlike canals that connect lacunae to each other and the central canal
perichondrium fibrous layer
Dense irregular connective tissue membrane covering cartilage
Tunnels formed by new bone deposition are lined by
Endosteum
Appositional bone growth is a process that
Forms new bone on the surface of older bone
New bone is deposited by cells known as
Osteoblasts
trabeculae of cancellous bone
Spongy bone It consists of lamellae that are arranged in an irregular pattern of thin columns called trabeculae. Consists of lamellae that are arranged in an irregular pattern of thin columns.
Which of the following is not a component of the skeletal system?
Tendons
The skeletal system helps maintain acid-base balance by __________.
absorbing or releasing alkaline phosphate and carbonate salts
Fibula lateral malleolus
ankle bone
Scapula Inferior Angle
bottom of scapula
Osseous tissue matrix is composed of __________.
calcium phosphate
Mineralization is a process that extracts __________ and __________ from the blood plasma and deposits it into bone.
calcium; phosphate
To help regulate body calcium levels, bone has two reserves. The disadvantage of the stable reserve is that it __________.
cannot easily be exchanged or released into the tissue fluid
Sacral hiatus
inferior opening of the sacral canal
During the healing of a bone fracture, a hard callus is formed by ___________.
osteoblasts
The __________ contain hydrogen pumps that lead to the formation of hydrochloric acid, which is used to dissolve bone minerals in a process called __________.
osteoclasts; mineral resorption
A(n) __________would not involve damage to the structures that comprise the skeletal system.
ruptured calcaneal (Achilles) tendon
Greenstick fractures most commonly occur in children because __________.
their bones contain a higher proportion of collagen
In an adult, a compound fracture of the __________ could lead to a "fat" embolism entering the blood stream.
tibia
