Chapter 6 Musculoskeletal System

Question 1

4 Functions of the Muscular System

Answer 1

1. Moves the body (via contraction and relaxation of muscle cells)
2. Maintains posture (via muscle tone)
3. Produces heat (from muscle cell metabolism)
4. Aids in organ function and blood circulation

Question 2

4 Essential substances for muscle contaction

Answer 2

Calcium, oxygen, ATP (adenosine tri-phosphate) and glucose

Question 3

3 Types of Muscle

Answer 3

1. Skeletal
2. Cardiac
3. Smooth

Question 4

Bones are

Answer 4

living tissue consisting of dense connective tissue, wit a network of blood vessels, lymph vessels and nerves

Question 5

Four functions of the Skeletal System

Answer 5

1. framework to give the body shape and support (muscle and bone work together as a lever system)
2. Bones protect vital organs
3. Bones store calcium and other minerals
4. Bone produces blood cells in the red bone marrow

Question 6

Joints

Answer 6

bones are connected to them

joints contain bursae which are sacs filled with synovial fluid

Question 7

Bursitis

Answer 7

joints become inflamed

Question 8

synovial fluid

Answer 8

thick viscous fluid that acts as a lubricant and serves as a cushion to protect against impact and damage to the bones

Question 9

Gout

Answer 9

a very painful join disease caused by a metabolic problem which forms uric acid crystals in the joints

Question 10

Tendons

Answer 10

bone to muscle

Question 11

ligaments

Answer 11

bone to bone