Skeletal Anatomy

Question 1

Total bones in an adult body

Answer 1

206

Question 2

Types of skeleton arrangements (two)

Answer 2

axial skeleton, appendicular skeleton

Question 3

Number of bones in the axial skeleton and regions

Answer 3

80 bones
skull
ribs
sternum
vertebral column

Question 4

Number of bones in the appendicular skeleton and regions

Answer 4

126 bones
upper limbs
lower limbs
pelvic girdle
pectoral girdle (shoulder)

Question 5

Number of bones in the skull

Answer 5

22 bones

Question 6

Regions of bones in the spine and total amount for each region

Answer 6

cervical - 7
thoracic - 12
lumbar - 5
sacrum - 1
coccyx - 1

Question 7

Sternum location

Answer 7

“breastbone” located in chest connected to the ribs by costal cartilage

Question 8

Names and number of ribs

Answer 8

true ribs, 1- 7
false ribs, 8 - 10
floating ribs, 11 - 12

Question 9

Bones in the pectoral girdle

Answer 9

clavicles
scapula

Question 10

Name of long bones in arm

Answer 10

humerus - upper arm
radius - lateral side
ulna - medial side

Question 11

Radius and ulna joint functions

Answer 11

radius - pronation/supination of wrist
ulna - flexion/extension of elbow

Question 12

Number of carpals

Answer 12

8 (wrist flexibility)

Question 13

Number of metatarsals

Answer 13

5 (fingers)

Question 14

Name of bones in the leg

Answer 14

femur - upper leg
tibia - supports body weight
fibula - maintain balance, muscle attachments
patella - formed early childhood

Question 15

bones that make up the ankle joint

Answer 15

tibia
fibula
tarsal

Question 16

Number of tarsals

Answer 16

7

Question 17

Number of metatarsals

Answer 17

5

Question 18

Types of bones

Answer 18

long
short
flat
irregular
sesamoid

Question 19

Sesamoid bones

Answer 19

form after birth inside tends which run across joints
protects the tendon from stress/strain
gives mechanical advantages

Question 20

Types of joints

Answer 20

synovial joint - small gap between joint
cartilaginous joint - layer of cartilage between joints

Question 21

Types of synovial joints

Answer 21

hinge joint
gliding joint
saddle joint
ball and socket joint

Question 22

Hinge joint

Answer 22

knee and elbow
open and close

Question 23

Gliding joint

Answer 23

carpals and tarsals
flat bones held together by ligaments slide past each other

Question 24

Saddle joint

Answer 24

thumb
rock back/forth and side/side
does not rotate

Question 25

Ball and socket joint

Answer 25

hip/shoulder
most mobile
most ROM

Question 26

Epiphysis

Answer 26

end of bone

Question 27

Diaphysis -

Answer 27

middle of bone

Question 28

Metaphysis

Answer 28

region of growth and eventual fusion of epiphysis and diaphysis

Question 29

Hyaline cartilage

Answer 29

articular cartilage on the end of the bone that forms joints with other bones

Question 30

Articular cartilage

Answer 30

acts as a sock absorber and gliding surface between bones to facilitate movement

Question 31

Periosteum

Answer 31

thin dense irregular connective tissue on the outside of bone
anchors tendon and muscle to bone
contains nerves and blood vessels

Question 32

Osteoblast

Answer 32

located in the periosteum
grows/repairs bone due to stress/injury