Bones
How many bones are in the human body?
206
What are the two types of Skeleton?
Appendicular Skeleton
Axial Skeleton
Example of an irregular joint?
Carpals
The cell that makes up bone.
Osteocyte
The process of bone formation by osteoblasts.
Ossification
What are osteoblasts, osteocytes, and osteoclasts?
-bone builders
- maintain bone tissue, mature bone cells
- bone digestion/breakdown for minerals
The skeletal system is composed of what?
bones, joints, muscle, tendon, ligaments
All of the diarthrodial joints are considered ______ _______?
Synovial Joints
What is the name of the ends of long bones?
epiphysis
Approximately until what age does bone growth continue?
25 years of age
The function of a sesamoid bone?
How many cranial bones are there and what is the name of the joints that holds them together?
8 cranial bones (one frontal bone, two parietal bones, two temporal bones, one occipital bone, one sphenoid bone, one ethmoid bone). Held by joints called sutures.
What are the 3 subdivisions of Synarthrodial joints?
suture, cartilaginous, and ligamentous
The __________ is a fibrous membrane that surrounds the bone
periosteum
True or False
Appositional growth is the increase in the diameter of bones by the addition of bony tissue at the surface of bones.
True
Give 3 bone functions?
Support, Protection, Movement, Mineral Storeage, Blood cell formation, Fat storage
The rib cage is made of ________ rib bones. The upper seven ribs are called ________. The 8th, 9th, and 10th ribs are called ________. The 11th and 12th ribs are called ________.
12 paired, true ribs, false ribs, floating ribs
_________ joints are distinguished by having a separation of the bones and the presence of a joint cavity.
Diarthrodial
The region of long bones where growth occurs.
Epiphyseal Plate
Growth hormone is produced by the ________ _________.
Pituitary Gland
The bones that provide the framework for the body and that make movement possible are classified as __________?
Long bones
Name the smallest bone in the human body.
The stapes (in the middle ear which transmits sound vibrations).
Joints between bones that allow only a gliding type of movement over each other are known as _______ joints, such as are found in the wrist and the foot
Nonaxial Joints
The _____ ______ _________ is the region of the bone that produces red blood cells.
red bone marrow
True or False
Ossification in long bones only begins in the diaphysis.
False
Ossification in long bones begin in the diaphysis and in both epiphysis.