Exploring the Human Skeleton

What are the four main types of bones?

• circular bones

• long bones, short bones, flat bones, irregular bones

• hexagonal bones

• triangular bones

Name three components of the axial skeleton.

• skull, vertebral column, rib cage

• femur, tibia, fibula

• pelvis, scapula, clavicle

• humerus, radius, ulna

What is the primary function of the appendicular skeleton?

• The primary function of the appendicular skeleton is to facilitate movement.

• To produce blood cells.

• To store minerals and fat.

• To protect vital organs.

List the three types of joints based on their movement.

• Elastic, Rigid, Flexible

• Fixed, Movable, Semi-movable

• Synarthroses, Amphiarthroses, Diarthroses

• Hinge, Ball-and-socket, Pivot

What type of joint allows for rotational movement?

• Ball-and-socket joint

• Saddle joint

• Pivot joint

• Hinge joint

Describe the structure of a long bone.

• A long bone has a hollow center filled with fat and no other components.

• A long bone is made up of cartilage and muscle tissue.

• A long bone consists only of a single solid structure.

• A long bone has a diaphysis, epiphyses, metaphysis, medullary cavity, and periosteum.

What is the role of the periosteum in bone health?

• The periosteum is primarily responsible for blood cell production.

• The periosteum acts as a cushion to prevent bone fractures.

• The periosteum is involved in the formation of cartilage.

• The periosteum supports bone health by enabling growth, repair, and providing attachment points for muscles.

How do synovial joints facilitate movement?

• Synovial joints facilitate movement by providing lubrication and a wide range of motion.

• Synovial joints do not allow any movement between bones.

• Synovial joints are primarily responsible for bone growth.

• Synovial joints restrict movement to a single plane.

What is the difference between compact and spongy bone?

• Compact bone is found inside the body, while spongy bone forms the outer layer.

• Spongy bone is denser than compact bone and provides structural support.

• Compact bone contains trabecular structures, while spongy bone is solid and heavy.

• Compact bone is dense and forms the outer layer, while spongy bone is lighter, found inside, and contains trabecular structures.

Explain the significance of bone marrow in the skeletal system.

• Bone marrow acts as a shock absorber for joints.

• Bone marrow produces blood cells and supports the immune system.

• Bone marrow stores calcium and phosphorus for bone strength.

• Bone marrow is primarily responsible for muscle movement.