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