the skeletal system

Question 1

______ is a rigid, living organ made up of all 4 types of tissues

Answer 1

bone

Question 2

what are the four types of tissues?

Answer 2

connective, nervous, epithelial, muscle

Question 3

support, movement, protection, storage, hematopoiesis (blood cell formation), and hormone production are all?

Answer 3

functions of the skeletal system

Question 4

how are bones classified?

Answer 4

by location and shape

Question 5

a bone’s _____ indicates its function

Answer 5

shape

Question 6

what are the four main types of bones?

Answer 6

long, short, flat, and irregular

Question 7

_______ bones are longer than they are wide

Answer 7

long

Question 8

where are long bones are mostly located?

Answer 8

in the limbs

Question 9

what is the function of long bones?

Answer 9

aid in movement

Question 10

short bones are usually ________ and tend to be as wide as they are long

Answer 10

cube shaped

Question 11

short bones provide _____________ with little movement

Answer 11

support and stability

Question 12

sesamoid bones are a special type of which bone?

Answer 12

short bone

Question 13

this bone type is embedded within tendons

Answer 13

sesamoid bone

Question 14

flat bones are also ______ with a large surface area

Answer 14

thin

Question 15

flat bones __________ (do what?)

Answer 15

attach themselves to muscles

Question 16

these bones are the “everything else” of bones

Answer 16

irregular bones

Question 17

irregular bones have a ________________ shape and structure

Answer 17

highly specialized

Question 18

what are examples of irregular bones?

Answer 18

hip bones and vertebrae

Question 19

bones typically have a dense, smooth layer of __________ bone tissue on the ___________ and ___________, spongy bone tissue on the ___________

Answer 19

compact on the outside; porous on the inside

Question 20

compact bone is made of _________, which are the basic structural units that act as weight-bearers in the bone

Answer 20

osteons

Question 21

what is the haversian canal?

Answer 21

a tunnel that runs through the middle of osteons and contains small blood vessels

Question 22

_______ bone is less organized than compact bone and no osteons

Answer 22

spongy

Question 23

the external surface of a bone is rarely smooth and has distinct ____________ that correspond to how the bone and attached muscles and ligaments work together

Answer 23

bone markings

Question 24

what are the 3 types of bone markings?

Answer 24

projections, surfaces, and depressions/openings

Question 25

osteocytes, osteoblasts, and osteoclasts are all types of ______________

Answer 25

bone cells

Question 26

what is the process of bone tissue formation called?

Answer 26

ossification

Question 27

two types of ossification are ________ and __________

Answer 27

intramembranous; endochondral

Question 28

bone is constantly being _________

Answer 28

remodeled

Question 29

during bone remodeling, osteocytes

Answer 29

release chemical signals to osteoclasts

Question 30

during bone remodeling, osteoclasts

Answer 30

release enzymes that allow for the digestion of calcium phosphate

Question 31

when calcium phosphate is released back into the blood, this is called _____________

Answer 31

resorption

Question 32

during bone remodeling, macrophanges

Answer 32

promote bone tissue remodeling

Question 33

during bone remodeling, osteoblasts

Answer 33

build new bone before undergoing apoptosis

Question 34

206 bones make up ______ of a healthy person’s body weight

Answer 34

1/5

Question 35

the skeleton is constantly rebuilding itself & you get a whole new skeleton every

Answer 35

7-10 years

Question 36

what are tendons and what do they do?

Answer 36

cords of connective tissue that connect muscles and bones

Question 37

_________ are (short) bands of tough, flexible, dense, connective tissue that connect 2 bones together

Answer 37

ligaments

Question 38

besides connecting bones, what other function do ligaments fulfill?

Answer 38

stabilizing joints

Question 39

joints are the junctions between two or more bones. what do joints do in the body?

Answer 39

aid movement & flexibility

Question 40

cartilage is a type of flexible _________ tissue

Answer 40

connective

Question 41

where is cartilage found?

Answer 41

all throughout the body