Skeletal System 2

Question 1

What minerals do bone tissue stores?

Answer 1

calcium and phosphorus

Question 2

blood cell formation in red bone marrow

Answer 2

hematopoiesis

Question 3

Radius, ulna are examples of?

Answer 3

long bone

Question 4

capitate and talus are examples of?

Answer 4

short bones

Question 5

scapula and sternum are examples of ?

Answer 5

Flat bones

Question 6

sphenoid bone and vertebra bones are example of?

Answer 6

Irregular bones

Question 7

reduces friction and absorbs shock at movable joints

Answer 7

articular cartilage

Question 8

made of fibrous connective tissue and contains blood vessels and nerves that enter the bone

Answer 8

periosteum

Question 9

what part of the periosteum attaches or merges to the tendons?

Answer 9

collagen fibers

Question 10

it contains the yellow marrow

Answer 10

medullary cavity

Question 11

what lines or covers the medullary cavity.

Answer 11

endosteum

Question 12

found mostly in short, flat,
& irregular bones
makes up bulk of
epiphyses of bones

Answer 12

Spongy bones

Question 13

irregular lattices of
thin bone columns (“honeycomb”)

Answer 13

trabeculae

Question 14

what is the extracellular matrix of the bone?

Answer 14

minerals and collagen fibers

Question 15

spaces occupied by their processes or extensions

Answer 15

canaliculi

Question 16

spaces occupied by their cell bodies

Answer 16

lacunae

Question 17

basic structural unit of compact bone

Answer 17

Haversian system or osteon

Question 18

runs parallel along long axis of bone

Answer 18

osteon

Question 19

contains blood vessels &
nerves that run along long axis of bone

Answer 19

central canal

Question 20

circular layers of bone matrix

Answer 20

concentric lamellae

Question 21

lie at right angles between the
central canal of each osteon

Answer 21

perforating canal

Question 22

connect the blood & nerve supply of the periosteum to that of the central canals & the medullary cavity

Answer 22

perforating canal

Question 23

the process of forming flat bones of the skull & mandible

Answer 23

intramembraneous ossification

Question 24

the process of forming bone from cartilage

Answer 24

endochondral ossification

Question 25

needed for normal activity of
osteoblasts

Answer 25

vitamin A

Question 26

needed for collagen synthesis

Answer 26

vitamin C

Question 27

When the calcium is high what gland is responsible for returning it back to normal.

Answer 27

Thyroid gland that secretes calcitonin

Question 28

When the calcium is low, what gland is responsible?

Answer 28

Parathyroid hormone

Question 29

immovable joint

Answer 29

synarthrosis

Question 30

slightly movable joint

Answer 30

amphiarthrosis

Question 31

freely movable joint

Answer 31

diarthrosis

Question 32

provides a smooth surface

Answer 32

articular cartilage

Question 33

made of fibrous connective tissue
• encloses the joint
in a strong sheath, like a sleeve

Answer 33

joint capsule

Question 34

secretes a thick & slippery fluid, the synovial fluid

Answer 34

synovial membrane

Question 35

small sacs of synovial fluid between the joint & the tendons that cross over the joint

Answer 35

bursae