Activity 18 - The Skeletal System

Which of the following makes up the structure of your skeletal system?

• ligaments
• cartilage
• bones
• all of the answers are correct

How many bones does an adult human have?

• 210
• 206
• 200
• 296

Which of the following is/are functions of the skeletal system

• The skeletal system provides support to our body.
• The skeletal system provides support to our body, and protection for our soft organs of the body.
• The skeletal system provides support to our body, protection for our soft organs of the body, and work with muscles to aid in the movement of our body.
• The skeletal system provides support to our body, protection for our soft organs of the body, work with muscles to aid in the movement of our body, and the production of our Red blood cells found within red bone marrow.

A baby is born with zones of cartilage in its bones that allow growth of the bones. These areas, called growth plate, allow the bones to grow longer as the child grows. By the time the child reaches an age of about 18 to 25 years, all of the cartilage in the growth plate has been replaced by bone. This stops the bone from growing any longer.

• True
• False

As we grow, cartilage is replaced by calcified bone

• True
• False

How is cartilage important in the skeletal system?

• cartilage provides the connection from one bone to another bone. For example, your knee has cartilage that connects the upper leg bone to the lower leg bone.
• cartilage provides the connection from muscle to bone. For example, the biceps brachii is attached to your radius lower arm bone.
• cartilage is found at the end of bones and is made of tough protein fibers, called collagen, within which cartilage provides smooth surfaces for bone to rub against.
• none of these answers are correct because cartilage is part of the muscular system.

Compact bone can be defined as

• the dense outer layer of the bone
• found at the center of the bone, within which is storage for mineral deposits.
• the producer of red blood cells found within our body.
• the producer of white blood cells found within our body.

Which of the following structures found within bones is the producer of red blood cells?

• spongy bone
• compact bone
• red bone marrow
• yellow bone marrow

Why is it necessary that humans have bones in their body?

• Bones aid in the protection of our soft organs, such as the heart, lungs, and brain.
• Bones produce red and white blood cells, within which red blood cells provide oxygen throughout the body, and white blood cells attack antigens in our body.
• Bone provide the basic structure of the skeletal system in our body.
• all of the answers are correct.

What is the main purpose of cartilage in the skeletal system?

• Cartilage allows you to turn your neck.
• Cartilage protects your soft organs.
• Cartilage prevents your bones from being broken.
• Cartilage cushions bones to keep them from grinding together