skeletal system

Question 1

What is the primary organ in the skeletal system?

Answer 1

Bones

Question 2

List the functions of the skeletal system.

Answer 2

• Support
• Protection
• Movement
• Storage
• Hematopoiesis

Question 3

What does the skeletal system provide as a supporting framework?

Answer 3

Support

Question 4

What type of protection does the skeletal system offer?

Answer 4

Hard bony boxes protect delicate structures

Question 5

How do muscles facilitate movement in the skeletal system?

Answer 5

Muscles are anchored to bones and pull on them as they contract

Question 6

What does the skeletal system store?

Answer 6

• Calcium
• Phosphorus
• Bone marrow

Question 7

Where does hematopoiesis occur?

Answer 7

In the red bone marrow

Question 8

What are osteoblasts responsible for?

Answer 8

Building new bone tissue

Question 9

What are osteocytes?

Answer 9

Mature bone cells

Question 10

What is the function of osteoclasts?

Answer 10

Clearing away damaged bone tissue

Question 11

What are the two types of bone tissue?

Answer 11

• Cortical (compact bone)
• Trabecular (spongy bone)

Question 12

What are the four main types of bones?

Answer 12

• Long
• Short
• Flat
• Irregular

Question 13

What is the diaphysis of a long bone?

Answer 13

Shaft made of hard, cortical bone

Question 14

What is the periosteum?

Answer 14

Strong membrane covering the diaphysis

Question 15

What does the medullary cavity contain?

Answer 15

Yellow bone marrow

Question 16

What is the function of the endosteum?

Answer 16

Lines the medullary cavity

Question 17

What are epiphyses?

Answer 17

Ends of the long bone made of trabecular bone

Question 18

What is the epiphyseal plate?

Answer 18

Growth plate where cartilage allows for growth

Question 19

What is ossification?

Answer 19

Process of bone formation

Question 20

What type of growth occurs at the epiphyseal plates?

Answer 20

Longitudinal growth

Question 21

What is circumferential growth?

Answer 21

Growing in width through most of life

Question 22

What is hypertrophy in relation to bones?

Answer 22

Increased density due to physical activity

Question 23

What is atrophy in relation to bones?

Answer 23

Loss of bone mineral density and strength

Question 24

What are the two divisions of the skeleton?

Answer 24

• Axial
• Appendicular

Question 25

What bones are included in the axial skeleton?

Answer 25

* Skull * Spine * Chest * Hyoid bone

Question 26

What are the three kinds of joints?

Answer 26

* Synarthroses * Amphiarthroses * Diarthroses (synovial joints)

Question 27

What does synarthroses mean?

Answer 27

No movement

Question 28

What is an example of a synarthroses joint?

Answer 28

Joints between the cranial bones

Question 29

What is the function of tendons?

Answer 29

Connect muscles to bones

Question 30

What do ligaments connect?

Answer 30

Bones to other bones

Question 31

What are the types of joint movements?

Answer 31

* Flexion * Extension * Rotation * Circumduction * Abduction * Adduction

Question 32

How many bones make up the skull?

Answer 32

28 bones

Question 33

What are fontanels?

Answer 33

Soft spots in infants allowing compression during childbirth

Question 34

What are sutures?

Answer 34

Immovable joints in the skull

Question 35

How many cervical vertebrae are there?

Answer 35

7 bones (C1-C7)

Question 36

What are the 12 pairs of ribs classified as?

Answer 36

* True ribs * False ribs * Floating ribs

Question 37

What is the xiphoid process?

Answer 37

Bottom portion of the sternum

Question 38

What is the scapula commonly known as?

Answer 38

Shoulder blade

Question 39

What is the acetabulum?

Answer 39

Deep, cup-shaped socket in the coxal bone where the femur rests

Question 40

What is the largest tarsal bone?

Answer 40

Calcaneus

Question 41

What bones make up the pelvic bones?

Answer 41

* Ilium * Ischium * Pubis

Question 42

What is the purpose of the pubic symphysis?

Answer 42

Connects the two pubis bones