Chapter 5: Skeletal System

Flashcards for what will be included in the test

Hematopoiesis

The bones that form the red blood cells

Bone

Also known as osseous tissue

Types of bones in the body

Long bones, short bones, flat bones, irregular bones

Long bones

Bones that are longer than they are wide (arm, leg, fingers)

Short bones

Bones approximately the same lenght and width (wrist and ankle)

Flat bones

Bones that are flat (hip and rib bones)

Sinus

a hollow cavity within a bone

Axial Skeleton

The central skeleton, comprised of 80 bones

Mandible

Lower jaw

Cervical vertebrae

neck bones (7)

Lumbar vertebrae

lower back (5)

Sacrum

triangular bone at lower end of vertebral column (1)

Appendicular skeleton

Any bone off the central skeleton, comprised of 126 bones

Scapula

Shoulder blades (2)

Clavicle

Collar bones (2)

Metacarpals

hand bones (framework of the hand) [10]

Femur

thigh bone

Tibia

shin bone (weight supporting)

Fibula

lateral side of lower leg (non weight supporting)

Synovial

Freely moving joint

Cartilaginous (Symphysis)

Slight movement joints

Fibrous (Suture)

No movement

Lordosis

Exaggerated inward curvature of the lumbar spine

Kyphosis

exaggerated outward curvature of the thoracic spine

Scoliosis

Lateral/sideward curvature

Greenstick fracture

bone is broken on one side, bent on the other