anatomy ch. 6 skeletal system final questions

red bone marrow functions in the formation of

blood cells

the medullary cavity of a long bone is lined with

endosteum

narrow sheets of calcified matrix are referred to as

lamellae

bones store energy reserves as ________ in areas filled with ________.

lipids; yellow marrow

osteocytes

maintain normal bone structure recycling the calcium salts in the bony matrix around themselves

regulatory functions of the skeletal system include:

maintaining blood calcium levels

ring layers of bone are referred to as:

osteons

which of the following is found only in compact bone?

osteons

which of the following is only found in compact bone?

osteons

which of the following structures link the blood vessels of central canals with those of the periosteum and marrow cavity?

perforating canals

the connective tissue covering the outer surface of a bone is the

periosteum

spongy bone is made up of a network of bony rods or plates called

trabeculae

the following are major steps in the process of endochondral ossification: 1. Blood vessels invade the perichondrium 2. Osteoclasts create a marrow cavity 3. Chondrocytes enlarge and calcify 4. Osteoblasts replace calcified cartilage with spongy bone 5. The perichondrium is converted into periosteum, and the inner layer produces bone The correct order for these events is:

3. Chondrocytes enlarge and calcify 1. Blood vessels invade the perichondrium 4. Osteoblasts replace calcified cartilage with spongy bone 5. The perichondrium is converted into periosteum, and the inner layer produces bone 2. Osteocalsts create a marrow cavity

the appendicular skeleton consists of the:

all of the above (the bones of the arms, the bones of the legs, the bones of the hands & feet, the bones that connect the limbs to the axial section)

osseous tissue is classified as which of the following?

connective tissue

the shaft of a long bone is called the _____________.

diaphysis

the primary functions of ______________is exemplified when bones function as levers.

movement

which of the following is a step in intramembranous ossification?

none of the above; all are part of endrochondral ossification

immature, active bone cells that produce new bone matrix are termed

osteoblasts

bone cells capable of dissolving the bony matrix are termed

osteoclasts