Structure and Function of the Skeletal System

Question 1

What is the skeletal system? How many bones are there?

Answer 1

The skeletal system is a rigid structure made of bones that provides support, protection and sites to which muscles attach to create movement.

It is made up of 206 bones and encompasses all of the bones, every joint and corresponding ligaments.

Question 2

Describe the 5 main functions of the Skeletal System.

Answer 2

• Body Movement
• Framework
• Protection
• Mineral Storage
• Red Blood Cell Production

Question 3

What are the 5 types of bones in the human body

Answer 3

• Short bones
• Long bones
• Sesamoid bones
• Flat bones
• Irregular bones

Question 4

Explain the 5 types of bones in the human body
* Short bones
* Long bones
* Sesamoid bones
* Flat bones
* Irregular bones

Answer 4

• Short bones are roughly cubical, with the same width and length; for example, the carpals of the wrist and the tarsals of the foot.
• Long bones are longer than they are wide, and they have a hollow shaft containing marrow; for example, femur, phalanges and humerus.
• Sesamoid bones are small bones developed in tendons around some joints; for example, the patella at the knee joint.
• Flat bones provide flat areas for muscle attachment and usually enclose cavities for protecting organs; for example, scapula, ribs, sternum and skull.
• Irregular bones have no regular shape characteristics; for example, vertebrae and bones of the face.

Question 5

Looking at the picture of the skeleton, starting from the right, name 14 the bones in the body

Answer 5

Cranium
Clavical
Sternam
Humerus
Radis and Ulna
Pelvis
Patella
Foot
Vertebral column
Scapula
Rib cage
Hand
Femur
Tibia and Fibula

Question 6

Explain the function of the Vertebral Column. Name each section of the Vertebral column and list how many vertebrae are in each section.

Answer 6

Cervical (7 Vertebrae)
Thoracic (12 Vertebrae)
Intervertebral discs made from cartilage
Lumbar (5 Vertebrae)
Sacrum (5 Vertebrae fused together)
Coccyx (4 Vertebrae fused together)

Question 7

Describe the function of Epiphyseal plates.

Answer 7

The area of tissue near the ends of long bones in children and teens that determines the future length and shape of the mature bone