The Musculoskeletal System

Question 1

3 functions of endoskeletal system

Answer 1

• provides framework for the body
• participates in hemopoietic functions
• serves as depot for calcium salts

Question 2

total number of human bones

Answer 2

206

Question 3

out of 206 bones, ____ are axial while ____ are appendicular

Answer 3

• 80
• 126

Question 4

appendicular bones support the _____ and _____

Answer 4

• arms
• legs

Question 5

axial skeleton consist of

Answer 5

• skull
• middle ear bones
• hyoid bone
• vertebral column
• ribs
• sternum

Question 6

number of bones in the skull

Answer 6

22

Question 7

out of 22 bones in the skull, how many are cranial and facial?

Answer 7

• 8
• 14

Question 8

number of middle ear bones

Answer 8

6

Question 9

kinds of middle ear

Answer 9

• malleus
• incus
• stapes

Question 10

number of hyoid bone

Answer 10

1

Question 11

number of vertebral column

Answer 11

26

Question 12

number of ribs

Answer 12

24

Question 13

number of sternum

Answer 13

1

Question 14

appendicular division consists of

Answer 14

• pectoral girdle
• upper limb bones
• pelvic girdle
• lower limb bones

Question 15

number of pectoral girdle bones

Answer 15

4

Question 16

number of upper limb bones

Answer 16

60

Question 17

number of pelvic girdle bones

Answer 17

2

Question 18

number of lower limb bones

Answer 18

60

Question 19

attach bones to one another

Answer 19

joints

Question 20

joints serve as points of _______ and ______ between bones

Answer 20

• connection
• interaction

Question 21

3 kinds of joints

Answer 21

• fibrous
• cartilage
• synovial

Question 22

nearly immovable joints

Answer 22

fibrous

Question 23

slightly immovable joints

Answer 23

cartilage

Question 24

freely movable joints

Answer 24

synovial

Question 25

sutures between bones in the skull

Answer 25

- coronal - sagittal - lamboidal

Question 26

examples of synovial joints

Answer 26

- hinge - bone and socket

Question 27

fluid secreted by the synovial membrane which reduces friction and provides lubrication

Answer 27

synovial fluid

Question 28

deposition of bone fragments

Answer 28

rheumatoid arthritis

Question 29

located inside the medullar cavity of long bones that supplies the body with new blood cells

Answer 29

bone marrow

Question 30

bones in the human body at birth

Answer 30

350

Question 31

skeleton of the frog body

Answer 31

157

Question 32

5 types of different bones that make up the vertebrate skeletal system

Answer 32

- long bone - short bone - flat bone - irregular bone - sesamoid bone

Question 33

longer than wide bone

Answer 33

long bone

Question 34

wider than long; cube or round

Answer 34

short bone

Question 35

very thin in one direction; no medullar cavity

Answer 35

flat bone

Question 36

no uniform shape

Answer 36

irregular bone

Question 37

short or irregular bone embedded in a tendon or muscle

Answer 37

sesamoid bone

Question 38

examples of long bone

Answer 38

- femur - tibia, - fibula - humerus - radius - ulna - metacarpals - metatarsals - phalanges - clavicle

Question 39

examples of short bones

Answer 39

- carpals - tarsals

Question 40

examples of flat bones

Answer 40

- sternum - cranium - ribs - scapula

Question 41

examples of irregular bone

Answer 41

- vertebrae - sacrum - coccyx - sphenoid

Question 42

examples of sesamoid bone

Answer 42

- patella - pisiform

Question 43

3 parts of a typical long bone

Answer 43

- epiphyses - metaphysis - diaphysis

Question 44

central long part of the bone

Answer 44

diaphysis

Question 45

ends of the bones

Answer 45

epiphyses

Question 46

fusion of epiphyses and diaphysis

Answer 46

metaphysis

Question 47

dense irregular connective tissue

Answer 47

periosteum

Question 48

mineralized portion of the bone

Answer 48

compact bone

Question 49

next to the compact bone

Answer 49

spongy bone

Question 50

suture between the frontal and parietals

Answer 50

coronal

Question 51

interparietal suture

Answer 51

sagittal

Question 52

suture between the parietals and the occipital occurring posteriorly

Answer 52

lamboidal

Question 53

cartilaginous portion between the diaphysis and each epiphysis where the region of active growth occurs in young bones

Answer 53

epiphyseal plate

Question 54

network of trabecular matrix filled with red marrow in the epiphysis; filled with air spaces

Answer 54

spongy bone

Question 55

inner connective tissue layer that lines the medullary cavity

Answer 55

endosteum

Question 56

hemopoietic tissue at the epiphysis

Answer 56

red marrow

Question 57

substance found within most of the length of the diaphysis and is filled with fats, nerves, and blood vessels that supply the bones

Answer 57

yellow marrow

Question 58

prime movers in a joint movement

Answer 58

protagonists

Question 59

assists the protagonists

Answer 59

synergists

Question 60

oppose the action of the prime movers

Answer 60

antagonists

Question 61

resist the contraction

Answer 61

neutralizers

Question 62

holds the rest of the body when a limb is moving

Answer 62

fixator