lab 2 skeletal

how many bones are in human body?

206 bones (over 300 at birth that fuse together)

what bones form ankle? neck? chest?

ankle: fibula, tibia, calcaneus, talus neck: atlas, axis, 5 other cervical vertebrae chest: sternum and ribs

what helps prevent osteoporosis

balance diet and exercise

why do older women suffer more from osteoporosis than men?

bone loss occurs during menopause women have less bone mass than men so any loss of bone mass increases risk

what are the functions of bones

bones store lipids, house hematopoietic tissue movement (muscle resistant), and mineral storage

what causes osteoporosis?

deterioration and weakening of bone

how does a tibia differ from a femur, especially in regards to location and range of motion

femur is upper leg, tibia is lower leg, femur is with the hip to allow for greater rotation than tibia

factors that increases chance of getting osteoporosis

lack of calcium

difference between ligament and tendon

ligaments connects bone to bone (using elastic tissue, collagen and dense regular connective tissue) tendons connect skeletal muscle to bone

functions of legs? ankles? feet?

locomotion ankle provides flexibility to move foot foot allows locomotion over uneven surfaces

if the human skull is made of bone how does it enlarge as we age?

multiple bones and joints in the skulls that can expand

examples of bone diseases

osteoporosis rickets Paget's diseases rheumatoid arthritis