Musculoskeletal System

Question 1

Vitamin D helps the body absorb?

Answer 1

Calcium

Question 2

What factors cause vitamin D deficiency?

Answer 2

Lack of sunlight and diet

Question 3

What are the main types of tissue?

Answer 3

Epithelial, muscle, nerve and connective

Question 4

What are the main types of connective tissue?

Answer 4

Bone, cartilage, tendon and ligament

Question 5

What does the skeletal system do?

Answer 5

Support, movement, protection and mineral storage

Question 6

Skeleton can be divided into 2?

Answer 6

Axial (protects vital organs) and the appendicular skeleton

Question 7

What does the axial skeleton protect?

Answer 7

Vital organs

Question 8

What does cancellous (spongey) bone look like?

Answer 8

Cheese

Question 9

What does compact bone look like?

Answer 9

Hard

Question 10

Compact bone is made up of osteons, which form?

Answer 10

Lamaelle

Question 11

Long bone: what part is the diaphysis?

Answer 11

Middle

Question 12

Long bone: where is the epiphysis?

Answer 12

Both ends

Question 13

Bone coverings: what is the articular cartilage?

Answer 13

Where it joins to another bone

Question 14

Bone coverings: where is the periosteum found?

Answer 14

Outer surface of bone

Question 15

What does the matrix consist of?

Answer 15

Calcium, magnesium and phosphates

Question 16

What are the bone cells?

Answer 16

OsteoBlasts - Build bone
Osteoclasts - remodelling
Osteocytes - structural

Question 17

What is the lamellae?

Answer 17

Layers of bone matrix

Question 18

What is the lancunae?

Answer 18

Spaces containing tissue fluids and osteocytes

Question 19

What is the canaliculi?

Answer 19

Connects lacunae and central canal

Question 20

What is the central canal?

Answer 20

Canal in the centre of bone matrix

Question 21

What is the trabeculae?

Answer 21

Bony branches

Question 22

How does movements work?

Answer 22

Nerves make muscles contract/relax to make movement at the joint

Question 23

What are the 3 types of joints?

Answer 23

1) fibrous - fixed so limited movement
2) cartilaginous - permit little movement
3) synovial - freely movable

Question 24

What is osteoporosis?

Answer 24

Loss of bone tissue

Question 25

Functions of skeletal muscle?

Answer 25

Movement , posture and heat production

Question 26

What is unicleate?

Answer 26

Single nucleus

Question 27

What is multinucleate?

Answer 27

Multiple nucleus

Question 28

What is the homeostasis if calcium?

Answer 28

R- thyroid gland
C- calcitonin (hormone)
E- deposition in bones and uptake in kidneys