Question

Explain how the skeletal system is more than just bones/bone tissue. (2 marks)

Answer 1

Skeletal system = The body is supported within or around by ahard framework called skeleton

skeleton system does not consists bones or bone tissues

IT is made from number of bones , joints ,tendons . ligaments ,diaphysis, Epiphysis ,

Human skeleton is of 2 types

1] Axial skeleton = Consists of 80 bones

consists of skull, vertebral column , thoracic cage

Skull- formed by 28 bones

verte. column- consists of 33 small ring like vertebrae called vertebae

thoracic cage= consists of 12 pairs of ribs & sternum

2] Appendicular skeleton = consists of 126 bones

consists of bones of girdle & limbs

Joints = A place where 2 or more bones articulated to one another called as joints

Diaphysis= Shaft of long bone containing a canal filled with yellow bone marrow

Ligaments = fibrous connective tissue that connects bone to bone

Osteoblast= Are principle bone building cells

Peristomeum= Dense fibrous membrane covering the surface of bones except joints

Tendons = Are tough inelastic tissue that attaches muscles to bones