Flashcards in Skeletal System Deck (44)
What are the 5 functions of the skeletal system?
Support, protection, body movement, blood cell formation, stores inorganic minerals
What are the five major types of bone?
Long, short, flat, sesmoid, irregular
Anatomical name for the shaft of a long bone
Anatomical name for the ends of a long bone
A band of cartilage that remains between two ossification centers; growth plate
Site of spongy bone in an adult?
Cartilage that covers the ends of long bones at the joints; provides a gliding surface on bones
Site of compact bone in an adult?
Site of hematopoiesis?
Formation of blood cells
Site of fat storage
site of longitudinal growth in a child
Why do bone injuries heal faster than cartilage injuries?
bones have a higher blood supply which contains more nutrients to heal
where are osteocytes located?
Immature or matrix-depositing bone cells
Bone cells that liquefy bone matrix and release calcium to the blood
Why do astronauts do isometric exercises when in space?
lack of gravity
Residences of osteocytes
Longitudinal canal carrying blood vessels and nerves
Nonliving structural part of bone
Tiny canals connecting lacunae
What is the function of the inorganic part of the matrix?
flexibility and strength
The formation of bone
how does intramembraneous bones form?
Osteoblasts appear in the connective tissue and deposit bony matrix which makes spongy bone form
How does endochondral bones form?
Cartilage models form and rapidly divides, forms compact bone and blood vessels
Name two ways the fetal skull differs from the adult skull
Fetal skull can still move around because it still has soft spots. Adult skulls have the parts of the skull fused together making the head more durable
A break in a bone
What are the 6 types of fractures?
spiral, greenstick, fissured, comminuted, transverse, oblique