Skeletal System

Question 1

Number of bones in an human adult skeleton

Answer 1

206 bones

Question 2

Number of bones in an human infant skeleton

Answer 2

300 bones

Question 3

Functions of the Skeletal System (5)

Answer 3

Framework, storage, movement, protection, Blood Cell Production

Question 4

Main mineral stored in bones.

Answer 4

Calcium

Question 5

Another term for Blood Cell Production

Answer 5

Hematopoiesis

Question 6

Coats the end of bones where they meet to form a joint

Answer 6

Cartilage

Question 7

Attaches muscle to bone

Answer 7

Tendons

Question 8

Connects bones to each other; holds joints in place

Answer 8

Ligaments

Question 9

Gives ability to move

Answer 9

Joints

Question 10

Classification of bones. (4)

Answer 10

Long, short, irregular, flat

Question 11

Longer length than width

Answer 11

Long bone

Question 12

Length is equal to width

Answer 12

Short bone

Question 13

Protects fragile organs

Answer 13

Flat bone

Question 14

Has no uniformed shape

Answer 14

Irregular bone

Question 15

Classification of bone tissue (4)

Answer 15

Compact bone, spongy bone, osteocytes, bone marrow

Question 16

Forms hard exterior of bone

Answer 16

Compact bone

Question 17

Porous bone that is for support and flexibility

Answer 17

Spongy bone

Question 18

Where new cells are produced

Answer 18

Bone marrow

Question 19

Makes up the bone tissue

Answer 19

Osteocytes

Question 20

Parts of skeleton. (2)

Answer 20

Axial and Appendicular Skeleton

Question 21

Forms longitudinal axis of body

Answer 21

Axial Skeleton

Question 22

Bones of the limbs and girdles

Answer 22

Appendicular Skeleton

Question 23

composed of collagen and calcium phosphate; living growing tissue; makes up only 20% of body weight because it is lightweight

Answer 23

Bones

Question 24

Provides soft framework

Answer 24

Collagen

Question 25

Strengthens and hardens framework

Answer 25

Calcium Phosphate

Question 26

Membrane the covers the surface of bone that contains network of blood vessels that supplies nutrients

Answer 26

Periosteum

Question 27

Network that carries nourishment to the living bone tissue

Answer 27

Haversian Canal

Question 28

found in most bone; can be converted into red bone marrow

Answer 28

Yellow Bone Marrow

Question 29

material at the epiphyseal ends of the long bones

Answer 29

Red Bone Marrow

Question 30

Made of spongy bone; found in the ends of bones

Answer 30

Epiphyses

Question 31

Made of compact bone; found in the middle part of bones

Answer 31

Diaphysis

Question 32

Cushions the joint

Answer 32

Articular Cartilage

Question 33

Types of joints (3)

Answer 33

Fixed joint, semi-movable joint, movable joint

Question 34

Joint that prevents bone movements

Answer 34

Fixed joint

Question 35

Joint that allows limited movement

Answer 35

Semi-movable joint

Question 36

Joint that supports movement

Answer 36

Movable joint

Question 37

For lubrication

Answer 37

Synovial Fluid

Question 38

Immune system defect

Answer 38

Arthritis Rheumatoid

Question 39

Weakens bones

Answer 39

Osteoarthritis

Question 40

Lack of calcium which causes fragile bones

Answer 40

Osteoporosis

Question 41

Contains bone marrow

Answer 41

Medullary Cavity

Question 42

Number of bones in hand

Answer 42

27 bones

Question 43

Lower leg bone that gets all the weight; thicker

Answer 43

Tibia

Question 44

Lower leg bone that gets no weight; thinner

Answer 44

Fibula

Question 45

Hardest part of the skull

Answer 45

Cranial

Question 46

Part of skull that forms the face

Answer 46

Facial

Question 47

3 smallest bones found in the auditory ossicles

Answer 47

Malleus, stapes, incus

Question 48

Smallest bone

Answer 48

Stapes

Question 49

Only movable joint in the skull

Answer 49

Mandible

Question 50

Collar bone

Answer 50

Clavicle

Question 51

Shoulder Blade

Answer 51

Scapula

Question 52

Number of vertebarae

Answer 52

33 vertebra

Question 53

Protects spinal cord

Answer 53

Vertebral column

Question 54

Breast bone

Answer 54

Sternum

Question 55

Ribs that are not attached to the sternum

Answer 55

Floating ribs

Question 56

Protects urinary, reproductive and digestive system

Answer 56

Pelvic Girdle

Question 57

Upper arm

Answer 57

Humerus

Question 58

Thicker part of the lower arm

Answer 58

Radius

Question 59

Thinner part of the lower arm

Answer 59

Ulna

Question 60

Wrist bones

Answer 60

Carpals

Question 61

Palm bones

Answer 61

Metacarpals

Question 62

Fingers and toes

Answer 62

Phalanges

Question 63

Ankle bones

Answer 63

Tarsals

Question 64

Sole bones

Answer 64

Metatarsals

Question 65

Knee bones

Answer 65

Patella