Skeletal

Question 1

skeletal system is made of ____ and _____

Answer 1

bone and cartilage

Question 2

____ are the supportive framework or the human body

Answer 2

bones

Question 3

_____ bone is the OUTER layer

Answer 3

Cortical

Question 4

_____ bone is the INNER layer

Answer 4

Trabecular

Question 5

_____ is the outer covering

Answer 5

Periosteum

Question 6

___ = shaft of bone

Answer 6

Diaphysis * die with shaft in

Question 7

____ = knoblike end of bone

Answer 7

Epiphysis * E = END

Question 8

____ cavity = inner cavity of bone

Answer 8

medullary cavity

Question 9

______ = lining

Answer 9

Endosteum

Question 10

which part of bone contains bone marrow?

Answer 10

medullary cavity

Question 11

bones start as _______

Answer 11

cartilage

Question 12

____ helps form cartilage into bone!

Answer 12

calcium

Question 13

_____ can stay at ends of bones and act as cushion, ie. our joints

Answer 13

cartilage

Question 14

two cell types within a bone are what?

Answer 14

osteoclasts and osteoblast

Question 15

osteo___ are cells that form new bones

Answer 15

osteoblasts

Question 16

osteo___ are cells that dissolve old bone

Answer 16

osteoclasts

Question 17

tumors typically occur in areas of rapid growth, such as a ____ plate

Answer 17

growth

Question 18

most common areas for bone tumors are ____ and _____. And why?

Answer 18

distal femur and proximal tibia - they have the largest growth plates

Question 19

majority of bone tumors ____are/are not____ metastatic

Answer 19

ARE metastatic; bone mets

Question 20

what primary bone tumor is most common?

Answer 20

osteosarcomas

Question 21

typically osteosarcomas occur in children, teens, and young adults however - which age group is most common

Answer 21

teens

Question 22

osteosarcomas typically occur in what areas? (3)

Answer 22

femur, tibia, humerus

Question 23

osteoblastic, chondroblastic, and fibroblastic are all subtypes of what primary bone cancer?

Answer 23

osteosarcomas

Question 24

behind osteosarcomas, what primary bone cancer is most common in children, teens, and young adults?

Answer 24

Ewing sarcoma

Question 25

ewing sarcoma of the __bone/soft tissue__ is most common type of ewing sarcoma

Answer 25

bone

Question 26

which responds better to radiation? - ewing sarcomas or osteosarcoma?

Answer 26

ewing sarcoma

Question 27

EOE stands for what?

Answer 27

Extra Osseous Ewing - sarcomas

Question 28

____ occur in soft tissue around the bones

Answer 28

EOE (Extra Osseous Ewing)

Question 29

PPNET stands for what?

Answer 29

Peripheral, Primitive, Neuroectodermal Tumors

Question 30

most common site for a ewing tumor to occur is where?

Answer 30

pelvis, chest wall, or legs

Question 31

osteosarcomas occur more commonly on ends (Epi) or bones or middle/shaft (Dia)? what about Ewing?

Answer 31

ends for osteosarcomas, middle/shaft for ewing

Question 32

what cancer starts in cartilage cells

Answer 32

chondrosarcoma

Question 33

what cancer starts in connective tissues?

Answer 33

MFH (Maligagnt Fibrous Histiocytoma)

Question 34

Chondrosarcomas are graded __-__

Answer 34

1-3

Question 35

MFH (Maligagnt Fibrous Histiocytoma) is also known as what?

Answer 35

UPS (high grade Undifferentiated Pleomorphic Sarcoma of bone)

Question 36

overall, lymphatic spread is ___rare/common___ for bone tumors

Answer 36

rare

Question 37

if bone tumor WERE to occur in lower limb/lower half of trunk, what nodes would be 1st?
What about upper limb/upper half of trunk bone tumor?
What about a skull or facial bone tumor?

Answer 37

lower – femoral nodes
upper – axillary
skull/face – neck nodes

Question 38

where do bone spread to 1st?

Answer 38

lung

Question 39

**T/F: even though osteosarcoma is most common primary bone tumor, bone mets is still most common bone tumor overall

Answer 39

true