Skeletal System

Question 2

What is the primary function of the skeletal system?

Answer 2

The primary function of the skeletal system is to provide support, protection for internal organs, and facilitate movement.

Question 3

True or False: The skeletal system is made up only of bones.

Answer 3

False: The skeletal system includes bones, cartilage, ligaments, and tendons.

Question 4

What are the two main types of bone tissue?

Answer 4

The two main types of bone tissue are compact bone and spongy bone.

Question 5

Fill in the blank: The process of bone formation is known as __________.

Answer 5

ossification

Question 6

What is the role of osteoblasts in bone development?

Answer 6

Osteoblasts are responsible for the formation of new bone tissue.

Question 7

Multiple Choice: Which type of ossification occurs in the long bones of the body? A) Intramembranous ossification B) Endochondral ossification

Answer 7

B) Endochondral ossification

Question 8

What is the main difference between intramembranous and endochondral ossification?

Answer 8

Intramembranous ossification occurs directly within mesenchymal tissue, while endochondral ossification involves a cartilage model that is replaced by bone.

Question 9

True or False: Bone remodeling is a continuous process throughout life.

Answer 9

True

Question 10

What is the function of osteoclasts?

Answer 10

Osteoclasts are responsible for the resorption of bone tissue.

Question 11

Fill in the blank: The outer layer of bone is called the __________.

Answer 11

periosteum

Question 12

Multiple Choice: Which hormone regulates calcium levels in bones? A) Insulin B) Parathyroid hormone C) Cortisol

Answer 12

B) Parathyroid hormone

Question 13

What is the term for the area where bone growth occurs in children?

Answer 13

Growth plate or epiphyseal plate

Question 14

True or False: Bones stop growing in length after puberty.

Answer 14

True

Question 15

What is the primary mineral found in bones?

Answer 15

Calcium

Question 16

Fill in the blank: The process of replacing cartilage with bone is known as __________.

Answer 16

ossification

Question 17

Multiple Choice: At what age does bone density typically peak? A) 20 B) 30 C) 40

Answer 17

B) 30

Question 18

What is the role of vitamin D in bone health?

Answer 18

Vitamin D helps the body absorb calcium, which is essential for bone development.

Question 19

True or False: Compact bone is denser than spongy bone.

Answer 19

True

Question 20

What type of cells are involved in the repair of bone fractures?

Answer 20

Osteoblasts and osteoclasts

Question 21

Fill in the blank: The central canal of an osteon contains __________.

Answer 21

blood vessels and nerves

Question 22

Multiple Choice: Which of the following bones is formed by intramembranous ossification? A) Femur B) Skull bones C) Vertebrae

Answer 22

B) Skull bones

Question 23

What is the role of chondrocytes in endochondral ossification?

Answer 23

Chondrocytes are responsible for the formation and maintenance of cartilage.

Question 24

True or False: The skeletal system does not play a role in mineral storage.

Answer 24

False: The skeletal system stores minerals such as calcium and phosphorus.

Question 25

What happens to the growth plate as an individual reaches adulthood?

Answer 25

The growth plate fuses, stopping further lengthening of the bones.

Question 26

Fill in the blank: Bone is a type of __________ tissue.

Answer 26

connective

Question 27

Multiple Choice: Which component of bone gives it flexibility? A) Calcium B) Collagen C) Phosphate

Answer 27

B) Collagen