Bones
what are examples of long bones?
Tibia, Fibula, Ulnar, Femur, Radius, metacarpals
what do bones do?
They support you, keep you upright and help you move around.
What is Hematopoiesis?
The production of blood cells. Happens in the bone marrow
who has more bones? Baby or adult? Why?
Babies have more bones, they have 300 and an adult has 206. Bones merge together when you grow up.
what are examples of flat bones?
Scapula, Sternum, brain bones
what do osteoblasts do?
bone makers
What is apoptosis?
Cell death, when bones self destruct due to needing to rebuild themselves
Exercising is important because Why?
Exercise stimulates bone remodeling and bone strength, so when you work out you build bone and muscle
what are axial bones?
Bones found within your vertebral axis such as skull, ribcage, vertebral column,
What do osteoclasts do?
bone breakers
Who are Kelly and Kornienko?
Two astronauts who went to space for a whole year so we could study the results of zero gravity of the body's muscles and bones
Senior citizens lose 1-2% of bone density how often?
every year
what are appendicular bones?
bones that make up limbs, pelvis, shoulder blades, bones that help us move around.
What are osteocytes?
Mature bone cells that monitor and maintain your bone matrix. They give commands to the osteoblasts and osteoclasts and tell them when and where to work.
What are osteons?
The basic structural units of bones, they run parallel to the bone structure and look likes holes that contain lamellae which run in different directions and have a reinforced structure that helps bones resist torsion tension.
What do Osteoblasts and Osteoclasts do in zero gravity?
Osteoclasts increase their rate of bone resorption and decrease the osteoblast bone formation.