Skeletal system

Question 1

State 6 functions of the skeletal system

Answer 1

Protect
Support
Assist in movement
Mineral homeostasis
Blood cell production
Energy storage

Question 2

How does the skeletal system support the body?

Answer 2

Bones provide structural framework of the body.
Support soft tissue and provide attachment points for tendons of the skeletal muscle

Question 3

How does the skeletal system protect the body?

Answer 3

Bones protect important internal organs (cranium protects the brain etc)

Question 4

How does the skeletal system assist in movement of the body?

Answer 4

Bones act as levers
Skeletal muscle contraction pulls on bone producing movement

Question 5

How does the skeletal system assist in mineral homeostasis?

Answer 5

Bone tissue stores calcium and phosphorus

Question 6

How does the skeletal system produce blood cells?

Answer 6

Red bone marrow produces red blood cells, white blood cells and platelets

Question 7

How does the skeletal system store energy?

Answer 7

Yellow bone marrow stores lipids/triglycerides

Question 8

What is a long bone?

Answer 8

A bone greater in length than width. Slightly curved for strength

Question 9

What is a short bone?

Answer 9

A cube shaped bone nearly equal in width and length

Question 10

What is an irregular bone?

Answer 10

Irregular bones are complex shapes and cannot be grouped into any other categories.

Question 11

What is a flat bone?

Answer 11

A thin and composed bone of two nearly parallel plates of compact bone tissue enclosing a layer of spongy bone

Question 12

What is a sesamoid?

Answer 12

A bone developed in tendons - largest is the patella

Question 13

Briefly describe the function of calcium in the body

Answer 13

Calcium moves between the skeleton, teeth and blood plasma. It contributes to the harness of the bones and teeth and plays a role in blood clotting, muscle tone nerve impulse conduction and muscular contraction.

Question 14

What is a function of red bone marrow?

Answer 14

Blood cell production

Question 15

What is a function of the periosteum?

Answer 15

Nourishes bone and provides anchoring points for tendons and ligaments

Question 16

What is a function of articular cartilage?

Answer 16

Reduces friction/prevents wear and tear at joints

Question 17

What is the difference between compact and spongy bone in regards to their structure and location?

Answer 17

Compact bone is dense while spongy bone is spongy and less dense. Compact bone is found at the edges of the bones (walls) while spongy bone is found at the epiphysis