6.1 Skeletal System Questions

Question 1

Bone stores calcium in the ___________ between bone cells called osteocytes.

Answer 1

Matrix

Question 2

The thoracic cage and skull bones are examples of what function of skeletal system?

Answer 2

Protection of Organs

Question 3

Ligaments and Tendons are accessory structures that assist bone in what function of the skeletal system.?

Answer 3

Movement

Question 4

The vertebral column of the skeletal system is important in what two skeletal system functions?

Answer 4

Supports the head and allows a twisting movement of the trunk.

Question 5

Hollow spaces within bones allows for what function of the skeletal system.

Answer 5

Hemopoiesis

Question 6

What types of tissues make bone an organ?

Answer 6

• Bone
• Blood
• Nervous tissue
• Cartilage
• Adipose tissue
• Fibrous connective tissue

Question 7

Name the two types of bone.

Answer 7

Spongy (cancellous) and Compact (dense)

Question 8

What bone cell is responsible for building bone by depositing calcium into the matrix of bone?

Answer 8

Osteoblast

Question 9

What bone cell is responsible for normal housekeeping?

Answer 9

Osteocyte

Question 10

What bone cell is responsible for breaking down bone to release calcium into the bloodstream?

Answer 10

Osteoclast

Question 11

What cells are found in the lacunae of an osteon?

Answer 11

Osteocytes

Question 12

Which of the two types of bone has osteon systems – compact or spongy?

Answer 12

Compact (dense) bone

Question 13

The structural unit of compact bone is the ______________.

Answer 13

Osteon system

Question 14

What is the hollow center of an osteon called?

Answer 14

Central canal

Question 15

Osteocytes in compact bone are nourished by blood from blood vessels contained within the _______________.

Answer 15

Central Canal

Question 16

Canaliculi are found in the __________ system of compact bone.

Answer 16

Osteon

Question 17

What are the rings called that are found circling the central canal called?

Answer 17

Lamellae

Question 18

What small channels are found between lacunae to allow for communication between osteocytes?

Answer 18

Canaliculi

Question 19

Nutrients for osteocytes of compact bone is brought up to the osteon by blood vessels found in the:

Answer 19

Central canal

Question 20

Osteocytes lie in depressions in compact bone called _________________.

Answer 20

Lacunae

Question 21

Bone is a connective tissue. What type of fibers are present in bone?

Answer 21

Collagen fibers

Question 22

Bone is a connective tissue. What mineral is stored in its matrix (spaces between the osteocytes)?

Answer 22

Calcium