Bone Basics & Anatomy
How many bones are in the adult human body?
206
How many vertebrae are in the human spine?
33 vertebrae
What holds bones together?
Ligaments
What is the smallest bone in the human body?
stapes (ear)
What type of marrow stores fat?
Yellow Bone Marrow
Which is the largest bone in the human body?
Femur
What protects the brain?
The cranium or skull
What attaches muscle to bones?
Tendons
What is the longest bone in the arm?
Humerus
What is the inner, porous layer of bone called?
Spongy bone
What is the outside layer of the bone called?
The periosteum
24 (2 Pairs)
What is the function of the joints?
To provide flexibility and allow movement between bones
What are the ankle bones called?
Tarsals
What is the central, soft tissue in bones that produces blood cells?
Red bone marrow
What are the five types of bone shapes?
long,short,flat,irregular,and sesamoid
How many bones are in the human hand and wrist?
54 bones
What is a "ball and socket" joint?
A joint that allows for rotational movement, such as the shoulder or hip
What is the knee cap called?
Patella
What is the hard outer layer of a bone called?
Compact bone
What are bones made of?
collagen, calcium, and phosphorus
How many bones are in the human foot?
26 bones
What is osteoporosis?
A disease where bones become weak, brittle, and more prone to fractures
What bone is know as the collarbone?
Clavicle
What are the main types of bone cells?
Osteoblasts: Form new bone.
Osteocytes: Mature bone cells.
Osteoclasts: Break down and remodel bone.