skeletal system

Question 1

cartledge types

Answer 1

hyaline
fibrocartledge
elastic cartledge

Question 2

hyaline cartledge

Answer 2

articular cartledge
coats the endes of bone to protect the ends of bones

streghtn and flexible

Question 3

fibrocartldge

Answer 3

strong
resist compression
absorb pressure
verterbrae

Question 4

elastic cartldge

Answer 4

firm but elastic allow stretch and recoil

pina of the ear

Question 5

fuctions of skeletal system

Answer 5

protection- protect vital organs
provide structural framework by allowing muscle to attach
assit in movement by muscle pull via tendon
mineral homeostasis storage of calcium and phosphate
storage of energy- fat in yellow bone marrow
blood cell production in red bone marrow

Question 6

axial and appendicular

Answer 6

midline- just skull and trunk

appendicular- girdles e.g pectoral and pelvic

Question 7

skull bones

Answer 7

frontal, pariteal, temporal, occipical
mandible and maxialla

Question 8

vertebra seperate

Answer 8

7- cervical
12-thoracic
5- lumber
1 fused sacral
1 fused coccycx

Question 9

curved spine

Answer 9

2 nirmal anterior- cervical and lumbar
2 normal posterior- thoracic and sacrocygeal

Question 10

depressions on skull

Answer 10

orbit- eye socket
foramen- bottom of skull
fissure- narrow slit
cannal- optic nerve
fossa- trench
sulcus- groove

Question 11

bone structure

Answer 11

hard background matrix- osseous tissue
crystallised salt/ collagen/ water
mineral salt intergeates with collagen calcification

Question 12

collagen

Answer 12

flexibillity
bends out of compression force

Question 13

organic bone

Answer 13

collagen gives flexibility to resist tear, stretch and twist

Question 14

inorganic bone-

Answer 14

rigid and hardness allows bone to support withstand compression

Question 15

diaphysis

Answer 15

bone shaft increase compact bone

Question 16

metaphysis

Answer 16

joins diaphysis and epiphysis
bellow a layer of compact bone

Question 17

epiphysis

Answer 17

ends of bone- spongy bone allows compact

Question 18

red marrow

Answer 18

spongy bone- blood cell production

Question 19

yellow marrow

Answer 19

medullary lipid storage

Question 20

articular cartleldge

Answer 20

protein end of bones

Question 21

periosteum

Answer 21

membrane around the bone- 2 layered
outer- fibrous
inner- cellular

allow nerves, blood vessel pass through to bone

Question 22

endosteum

Answer 22

medullary cavity cover spongy bone

allows growth and repair

Question 23

osteocyte

Answer 23

mature bone cell

Question 24

osteogenic

Answer 24

stem cell
produce osteoblasts

Question 25

osteoblast

Answer 25

build bones osteogenisis

Question 26

osteoclast

Answer 26

breakdown bone through secretion of enzymes and acid
to reabsoption

Question 27

resist force different angle

Answer 27

spongy bone

Question 28

resist compression force

Answer 28

compact bone

Question 29

weight bear

Answer 29

both

Question 30

less atp

Answer 30

spongy

Question 31

compact bone

Answer 31

circular osteon
repaeting osteons are parallel
located diaphysis outerlayer around epiphysis
dense
tensile strentgh ‘resist compresion
strong

Question 32

spongy bone

Answer 32

epiphysis and metaphsis
covered with endosteum
canilucular- allow movement rhough holes
resist force from different directions

Question 33

joints

Answer 33

union of two bones

Question 34

fibrous

Answer 34

no joint cavity
suture- bones held tightly together by connective layer
stenosis: complete fusion of two bones
gomphosis: ligament hold tooth im gum
interosesu: membrane- syndemosis

Question 35

cartilaginous joint

Answer 35

no joint capsule
helt togther by cartledge
2 types synchondrosis
symphysis

Question 36

synovial joint

Answer 36

joint capsule
ligaments
articular cartledge
meiscus
bursae
synovial fluid
frelly movable

Question 37

synarthrosis

Answer 37

immobile

Question 38

ampjiathrosis

Answer 38

slightly mobile