Bones Tissue and Skeletal System

What are the basic functions of the skeletal system?

Supports the body, facilitates movement, protects internal organs, produces blood cells, stores minerals, and stores fat.

The skeletal system facilitates movement by serving as __ points for muscles.

attachment

What does hematopoiesis refer to?

The process of blood cell production in the red marrow of bones.

The axial skeleton consists of _ bones.

80

What type of bone is the femur classified as?

Long bone.

What is the primary function of flat bones such as the skull and sternum?

Protection for underlying structures and attachment points.

Osteoblasts are responsible for __ new bone.

forming

What is the role of osteoclasts?

Involved in bone resorption, breaking down bone tissue.

Vitamin D is important for __ absorption.

calcium

What is the first step in bone repair after a fracture?

Formation of a fracture hematoma.

The vertebral column consists of how many vertebrae?

33

What is the main function of intervertebral discs?

Provide cushioning between vertebrae.

The thoracic cage protects which organs?

The heart and lungs.

Which bones are considered true ribs?

Ribs 1-7.

What is the purpose of the epiphyseal plate?

Essential for bone growth during development.

The skull is composed of how many individual bones?

22

What is the main function of the cranium?

Protecting the brain.

Hypocalcemia can lead to which symptoms?

Difficulty in blood coagulation, brittle bones, and cardiac issues.

What are the three parts of the sternum?

Manubrium, body, and xiphoid process.

The balance between which two cell types is crucial for maintaining bone density?

Osteoblasts and osteoclasts.

What role do parathyroid hormone and calcitonin play in bone health?

Maintain calcium homeostasis.