Level 3 Beauty Therapy - Skeletal System Questions And Answers With Verified Solutions

Skeletal System - Hard frame work of bones that supports and protects the muscles and organs How many bones are in the human body - 206 What are bones made of - Osteoblasts and Osteoclasts Functions of the skeleton - supports body forms blood cells forms joints allows movement protects organs Cranium - protects the brain What makes bones strong - Calcium and Vitamin D Cartilage - Soft and flexible Bone - Dense and strong Hollow space in middle of bone is filled with - bone marrow Compact bone - full of holes Cancellous Bone - contains bone marrowWhat are joints - the body's hinges Synovial joints are - freely moveable Fibrous joints are - fixed (e.g skull, pelvic girdle) cartilaginous joints are - slightly moveable (e.g spine) Ball & socket (freely moveable) - most moveable joint (shoulder and hip joints) Gliding (freely moveable) - least moveable joint (tarsals and carpals) Hinge (freely moveable) - movement in one direction only (elbow, knee, ankle, phalanges) Pivot (freely moveable) - rotation movement (head, proximal end of ulna and radius) Axial Skeleton - Skull Face Hyoid Vertebral Column Sternum Ribs Appendicular Skeleton - Shoulder girdle Arms Wrists FingersLegs Ankles Toes Pelvic Girdle Hands Long Bones - Allow movement (Femur, Tibia, Fibula, Clavicle, Humerus, Radius, Ulna, Metacarpals, Metatarsals, Phalanages) Short Bones - Strong and Compact (Tarsals, Carpals) Flat Bones - Protective (Occipital, Parietal, Frontal, Nasal, Vomer, Lacrimal, Scapula, Innominate, Sternum) Irregular Bones - Vertebrae, Sacrum, Coccyx, Maxilla, Mandible, Ethmoid, Palatine, Sphenoid, Zygomatic, Temporal Sesamoid Bones - Bones within tendons (Patella, Hyoid) Haversian Canals - run lengthways through compact bones and contain blood, lymph capillaries and nerves. The larger the canal the less dense and compact the bone is. 8 - Bones in the cranium 3 - Bones in the sternum 33 - Bones in the vertebral column5 - Bones form sacral 14 - Bones in the face 1 - Bone makes up the Hyoid Occipital - back of head Location of parietal - sides of the cranium