Choose the best answer.

1			Which of the following is NOT a function of bone?
			A)	protection
			B)	blood formation
			C)	electrolyte balance
			D)	thermoregulation
			E)	movement
2			Most of the limb bones belong to which shape category?
			A)	long bones
			B)	short bones
			C)	flat bones
			D)	irregular bones
3			Which type of bone cell produces the matrix of the bone?
			A)	osteogenic (osteoprogenitor) cells
			B)	osteoblasts
			C)	osteocytes
			D)	osteoclasts
4			The inorganic matter found in the matrix of osseous tissue is primarily ________________ .
			A)	collagen
			B)	hydroxyapatite
			C)	calcium carbonate
			D)	glycosaminoglycans, proteoglycans, and glycoproteins
5			What would bone be like without collagen fibers?
			A)	very resistant to impact
			B)	very brittle
			C)	very bendable
			D)	very soft
6			During endochondral ossification, what type of tissue is used as a model for bone construction?
			A)	mesenchyme
			B)	elastic cartilage
			C)	fibrocartilage
			D)	hyaline cartilage
7			What is the typical structure of a flat cranial bone?
			A)	compact bone throughout
			B)	spongy bone throughout
			C)	spongy bone on the outside with compact bone in the center
			D)	compact bone on the outside with spongy bone in the center
8			Which one of the following does NOT promote bone growth?
			A)	vitamin D
			B)	calcium
			C)	sex steroids (estrogen and testosterone)
			D)	parathyroid hormone
9			Which one of the following is NOT an effect of aging on the skeletal system?
			A)	decrease in bone density
			B)	decrease in protein in the bone
			C)	increase in ease of bone fracturing
			D)	increase in the flexibility of the bone
10			Which one of the following does NOT increase the risk for developing osteoporosis?
			A)	calcium deficiency
			B)	very low body fat in young women
			C)	low bone mass
			D)	moderate weight-bearing exercise
11			Which is NOT a function of the skeletal system?
			A)	support
			B)	control
			C)	movement
			D)	protection
			E)	blood formation
12			Bone is classified as a ____________________ tissue.
			A)	muscle
			B)	nervous
			C)	epithelial
			D)	connective
13			A principal feature of long bones is its shaft, called the _______________.
			A)	diaphysis
			B)	epiphysis
			C)	medulla
			D)	cortex
14			What is the name of the narrow space of hyaline cartilage that is the site of long bone growth until the end of puberty?
			A)	Medullary cavity
			B)	Mineralization
			C)	Chondrocytic line
			D)	Epiphyseal plate
15			Most ends of long bones have no periosteum but rather a thin layer of hyaline cartilage called the ______________.
			A)	diploe
			B)	articular cartilage
			C)	canaliculi
			D)	matrix
			E)	chondroblastic layer
16			What is the name of the common bone cells that are surrounded by matrix and live in lacunae?
			A)	Osteogenic cells
			B)	Osteoblastic cells
			C)	Osteocytic cells
			D)	Osteoclastic cells
17			The normal histological make up of bone is concentric lamellae called the _______________.
			A)	osteon
			B)	trabeculae
			C)	periosteum
			D)	endosteum
18			What is the name of the bone that consists of a lattice of thin plates called trabeculae and rods and spines called spicules?
			A)	Hard bone
			B)	Spongy bone
			C)	Soft bone
			D)	Compact bone
19			Which is NOT a location for the site of red bone marrow in the adult?
			A)	Vertebrae
			B)	Sternum
			C)	Tibia
			D)	Ribs
20			The process in which a bone develops from hyaline cartilage is called?
			A)	Endochondral ossification
			B)	Intermembranous ossification
			C)	Intramembranous ossification
			D)	Periosteal ossification
21			At the boundary between the marrow space and each cartilaginous head of a developing long bone there is a transitional zone called the _______________.
			A)	osteogenic site
			B)	metaphysis
			C)	primary ossification center
			D)	proliferation center
22			Which is NOT a normal factor in the promotion of bone deposition?
			A)	Vitamin D
			B)	Calcium
			C)	Vitamin K
			D)	Vitamin A
			E)	Vitamin C
23			Bone continues to __________________ throughout life.
			A)	grow and remodel itself
			B)	have intramembranous ossification
			C)	have endochondral ossification
			D)	reabsorb itself at a rate of 3% per year
24			Normally secondary centers of ossification occur around this time. When is it?
			A)	Fetal
			B)	Time of birth
			C)	Puberty
			D)	Old age
25			The process of hardening the matrix of bone during development is called __________________?
			A)	hypertrophy
			B)	myloidation
			C)	ossification
			D)	proliferation
			E)	cartilagization
26			The covering on most of the bone is a double layered sheath of tissue called the ________________________________.
			A)	periosteum
			B)	diploe
			C)	matrix
			D)	hydroxyapatite
27			The lacunae are connected together by minute tubules called _________________.
			A)	matrix
			B)	canaliculi
			C)	hydroxyapatite
			D)	foramina