Bones Of The Human Body Flashcards
Hw many bones is the human skeleton made up of?
206
What are the two sections the human skeleton can be divided into?
Axial and appendicular skeletons
What is the axial skeleton?
The main support for the body and includes the skull, vertebral column and rib cage
What is the appendicular skeleton?
The limb bones and their ‘girdles’, which connect onto the axial skeleton
How many bones are in the vertebral column?
33 - 24 are infused or seperate and 9 are fused together to make up the sacrum and coccyx
How many cervical vertebrae are there?
7 unfused
How many thoracic vertebrae are there?
12 unfused
How many lumbar vertebrae are there?
5 unfused
How many sacrum vertebrae are there?
5 fused sacral vertebrae
How many coccyx vertebrae are there?
4 fused vertebrae
What are short bones?
Roughly cubical bones, with the same width and length
What are long bones?
Bones that are longer than wide, and they have a hollow shaft containing marrow
What are sesamoid bones?
Small bones developed in tendons around some joints
What are flat bones?
Flat area for muscle attachment and usually enclose cavities for protecting organs
What are irregular bones?
Bones with no regular shape characteristics