The Skeletal System

Question 1

What is a facet joint and its location?

Answer 1

A joint located in the spine that restricts excessive movement.

Question 2

What is flexation?

Answer 2

Bending forward.

Question 3

What is extension?

Answer 3

Bending backward.

Question 4

Describe short bones.

Answer 4

Shaped roughly like a cube, located in the hands, kneecaps, and feet.

Question 5

Describe flat bones.

Answer 5

Provide broad spaces for attachment, primary function is to provide protection.

Question 6

What is smooth muscle?

Answer 6

Muscle that forms on the walls of blood vessels and hollow organs.

Question 7

Is smooth muscle voluntary or involuntary?

Answer 7

Involuntary.

Question 8

Where is cardiac muscle located?

Answer 8

Found in the walls of the heart.

Question 9

Is cardiac muscle voluntary or involuntary?

Answer 9

Involuntary.

Question 10

What is skeletal muscle?

Answer 10

Muscle that supports skeletal movement, maintains posture and generates heat.

Question 11

Is skeletal muscle voluntary or involuntary?

Answer 11

Voluntary.

Question 12

What is involuntary muscle?

Answer 12

Not under conscious control.

Question 13

What is striated muscle?

Answer 13

Long elongated fibres for movement.

Question 14

What are the three types of joint?

Answer 14

1. Fibrous
2. Cartilaginous
3. Synovial

Question 15

What is the function of fibrous joints?

Answer 15

Do not allow movement, connect bone.

Question 16

What is the function of cartilaginous joints?

Answer 16

Allow some movement.

Question 17

What is the function of synovial joints?

Answer 17

Allow the most movement with minimal friction.

Question 18

What is the musculoskeletal systems function?

Answer 18

Provides form, support, stability, and movement.

Question 19

What are the components of the musculoskeletal system?

Answer 19

Bones, cartilage, and ligaments.

Question 20

What are the functions of the skeleton?
(5 functions)

Answer 20

1. Act as a framework for organs/organ systems.
2. Protect body systems.
3. Support movement.
4. Provide storage for minerals.
5. Cell production in the bone marrow.

Question 21

What is a sesamoid bone?

Answer 21

Bone embedded in tendon.
E.g., patella.

Question 22

How do osteoporosis and osteoarthritis begin developing?

Answer 22

A reduction in osteocytes.

Question 23

When do osteoporosis and osteoarthritis occur?

Answer 23

When bone is not regenerated and loses density.

Question 24

What is an irregular bone?

Answer 24

A bone with a complex shape.
E.g., spine.

Question 25

What is a ligament?

Answer 25

Elastic fibres that stabilize like rope.

Question 26

What is a tendon?

Answer 26

Tough cords that help absorb the impact of muscles.