10/1/26 Objectives: PCM Bones Functions + Classification

Support

Architecture for the body

Support: Lower extremity

“pillars”

Support: Thoracic cage

"walls”

Support: Skull

“enclosed room”

Protection

Vital organs lie deep to bones

Protection: Skull

Brain

Protection: Thoracic cage

Lungs and heart

Protection: Vertebrae

Spinal Cord

Movement (anchorage)

Attachment for skeletal mm via tendons

Types of movement is determined by:

Joint types

Storage

Triglyceride (fat), minerals

Triglyceride

Yellow Bone Marrow

Minerals

Calcium & Phosphate

Hematopoiesis

Production of blood cells and platelets

Hematopoiesis occurs in:

Red blood marrow

Hormone production

Production of osteocalcin

Osteocalcin regulates:

• Insulin secretion

• Glucose homeostasis

• Energy expenditure

Two major regions of the skeleton

Appendicular, Axial

Appendicular

• Upper and lower limbs

• Limb girdle: Bones connecting limbs to body

Axial

“Core”, Protection of organs

Bones found in the Appendicular skeleton

Upper region: Scapula & clavicle

Lower region: Pelvis

Bones found in the Axial skeleton

Skull, vertebrae, ribs