chapter 6

When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones A) grow longer. B) grow wider. C) become shorter. D) become more porous and weaker. E) become thicker.

A) grow longer.

41) Put the following steps of bone repair in correct sequence: 1. Cartilage in the external callus is replaced by bone. 2. A hematoma occurs. 3. An internal callus forms at the site of injury. 4. Osteoclasts remodel the bone at the site of repair. A) 1, 2, 3, 4 B) 2, 1, 3, 4 C) 3, 1, 4, 2 D) 4, 2, 3, 1 E) 2, 3, 1, 4 Answer:

B) 2, 1, 3, 4

Put the following steps of bone repair in correct sequence: 1. Cartilage in the external callus is replaced by bone. 2. A hematoma occurs. 3. An internal callus forms at the site of injury. 4. Osteoclasts remodel the bone at the site of repair. A) 1, 2, 3, 4 B) 2, 1, 3, 4 C) 3, 1, 4, 2 D) 4, 2, 3, 1 E) 2, 3, 1, 4

B) 2, 1, 3, 4

When production of sex hormones increases at puberty, epiphyseal plates A) get wider. B) become narrower. C) increase slowly. D) accelerate rapidly, but mostly in thickness. E) are hardly affected.

B) become narrower.

Bone growth in length occurs by mitosis of A) concentric lamellae. B) cartilage cells in the epiphyseal side of the metaphysis. C) growth of trabeculae. D) osteoblasts in the endosteum. E) cartilage cells in the diaphyseal side of the metaphysis.

B) cartilage cells in the epiphyseal side of the metaphysis.

The following are major steps in the process of intramembranous ossification: 1. Clusters of osteoblasts form osteoid that becomes mineralized. 2. Osteoblasts differentiate within mesenchymal connective tissue. 3. Spicules of bone radiate out from the ossification centers. 4. Mesenchymal cells aggregate. The correct order for these events is: A) 4, 1, 2, 3 B) 2, 1, 3, 4 C) 4, 2, 1, 3 D) 2, 3, 1, 4

C) 4, 2, 1, 3

When the epiphyseal plate is replaced by bone, A) puberty begins. B) interstitial bone growth begins. C) appositional bone growth begins. D) long bones have reached their adult length. E) the bone becomes more brittle.

D) long bones have reached their adult length.

The expanded articular end of an epiphysis that is separated from the shaft by a narrower neck is termed a(n) ________

head

The narrow region between the head and shaft of a long bone is called the ________.

metaphysis

A ________ is a smooth, grooved bone process shaped like a pulley

trochlea

A small rough bump on bone where a tendon attaches is called a ________

tuberosity