Skeletal System

This is an A&P Overview of the skeletal system. You will see more throughout the EMS Blueprint including the bonus area that focuses on terms.

Skeletal System: 206 bones in the frame. Protect internal organs and with muscles provide movement. Store minerals like calcium. Produce red and white blood cells. 4 types: long, short, flat, irregular.

Axial Skeleton:

  • Skull: cranium and face
  • Spine: 7 cervical vertebra #1 is Atlas, #2 is Axis 12 thoracic, 10 ribs connected + 2 floating, 5 Lumbar, 5 Sacrum, 4 Coccyx

Appendicular Skeleton:

  • Scapula: shoulder girdle/clavicle Arm> humerus, radius, ulna
  • Hand: carpals, metacarpals, phalanges
  • Pelvic girdle: ilium, ischium, pubis Leg> femur, patella, tibia, fibula
  • Feet: tarsals, metatarsals, phalanges

Joints: where two or more bones meet, articulate and move, movement aided by cartilage

3 types:

  • Immovable, cranium
  • Slightly movable: spine
  • Movable: ball and socket, hingeskeletalgen

Ligaments: join bone to bone

Tendons: join muscle to bone

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