Skeletal system

Question 1

• Shaft
• Composed of
  compact bone

Answer 1

Diaphysis

Question 2

• Ends of the bone
• Composed mostly of
  spongy bone

Answer 2

Epiphysis

Question 3

• Outside covering of the diaphysis
• Fibrous connective tissue membrane

Answer 3

Periosteum

Question 4

Secure periosteum to underlying bone

Answer 4

Sharpey’s fibers

Question 5

Supply bone cells with nutrients

Answer 5

Arteries

Question 6

• Covers the external
  surface of the
  epiphyses
• Made of hyaline
  cartilage
• Decreases friction
  at joint surfaces

Answer 6

Articular cartilage

Question 7

• Cavity of the shaft
• Contains yellow
  marrow (mostly fat) in
  adults
• Contains red marrow
  (for blood cell
  formation) in infants

Answer 7

Medullary cavity

Question 8

• Cavities containing bone cells (osteocytes)
• Arranged in concentric rings

Answer 8

Lacunae

Question 9

• Rings around the central canal
• Sites of lacunae

Answer 9

Lamellae

Question 10

• Tiny canals
• Radiate from the
  central canal to
  lacunae
• Form a transport
  system

Answer 10

Canaliculi

Question 11

Mature bone cells

Answer 11

Osteocytes

Question 12

Bone-forming cells

Answer 12

Osteoblasts

Question 13

• Bone-destroying cells
• Break down bone matrix for remodeling and release of calcium

Answer 13

Osteoclasts

Question 14

break that does not
penetrate the skin

Answer 14

Closed (simple) fracture

Question 15

broken bone
penetrates through the skin

Answer 15

Open (compound) fracture

Question 16

• Skull
• Vertebral column
• Bony thorax

Answer 16

The Axial Skeleton

Question 17

Hollow portions of bones surrounding
the nasal cavity

Answer 17

SinusesParanasal

Question 18

The only bone that
does not articulate
with another bone
* Serves as a
moveable base for
the tongue

Answer 18

The Hyoid Bone

Question 19

Each vertebrae is
given a name
according to its
location. T or F?

Answer 19

True

Question 20

The spine has a
strange curvature. True or False?

Answer 20

False. Normal

Question 21

Forms a
cage to
protect
major
organs

Answer 21

The Bony Thorax

Question 22

Ilium
* Ischium
* Pubic bone

Answer 22

Hips bones

Question 23

Articulations of bones

Answer 23

Joints

Question 24

immovable joints

Answer 24

Synarthroses

Question 25

slightly moveable joints

Answer 25

Amphiarthroses

Question 26

freely moveable joints

Answer 26

Diarthroses

Question 27

Generally immovable joint

Answer 27

Fibrous joints

Question 28

Immovable or slightly moveable joint

Answer 28

Cartilaginous joints

Question 29

Freely moveable

Answer 29

Synovial joints

Question 30

Bones connected by cartilage

Answer 30

Pubic symphysis * Intervertebral joints

Question 31

* Articulating bones are separated by a joint cavity * fluid is found in the joint cavity

Answer 31

Synovial Joints