Chapter 5 - skeleton

Arthr/o

joint

Brachi/o

Arm

Carp/o

Wrist

Cervic/o

Neck

Chondr/o

Cartilage

Cost/o

Rib

Crani/o

Cranium

Dactyl/o

Finger, toe

Kinesi/o

Movement

My/o

Muscle

Myel/o

Bone marrow

Orth/o

Straight

Os/te/o

Bone

Ped/o

Foot, child

Spondyl/o

Vertebrae

Thorac/o

Chest

Main points about the skeleton

206 Bones

Articulating framework for muscles and other tissues

Protects vital organs

Stores minerals

Makes blood cells

How many parts is the skeleton divided into?

2

what are the 2 parts called?

Axial & Appendicular

Axial

Skull

chest

spinal column

Appendicular

Arms

legs

shoulders

pelvic bones

What is the band of tissues which connect two bones together?

Ligaments

What attaches muscles to bones?

Tendons

What is the place where bones comes together?

Joints ( Articulations)

what is ossification?

The bone formations. It begins in the early fetal development where the skeleton is mainly al cartilage.

What connects tissues with mature bone cells which is called Osteocytes?

Osseous tissue

what are the different parts of the long bone?

Diaphysis

Epiphysis

Epiphyseal plate

Medullary cavity

Marrow

Diaphysis

a shaft

Epiphysis

The each end of a long bone

Epiphyseal plate

A growth area of a long bone

Medullary cavity

A cavity inside of the diaphysis

Marrow

A tissue which produces blood cells

Compact bone

Hard, dense bone which makes up diaphysis

Spongy bone

A mesh-like bone tissue which is found in the epipysis

Periosteum

A membrane which covers the bone surface

Endosteum

A inner surface of medullary cavity which is lined with a thin layer of cells

Label the terms

Main facial bones names

Nasal bone, Zygomatic bones, Maxilla, & Mandible

Nasal bone

This forms the bridge of the nose

Zygomatic bones

This forms the cheeks

Maxilla

This is the upper jaw, which is unmovable

Mandible

This is the lower jaw which IS moveable

Label he parts

Thorax

Breastplate or thoracic cage and the major organs are inside the thoracic cage: heart and lungs.

How many vertabrea’s and ribs in the thorax region?

12 thoracic vertebrae, 12 ribs, costal (rib) cartilages, sternum.

How do the rib pairs attach?

They attach correspondingly numbered vertebrae (backbone)

Label the terms

Spinal column

• Five sections of vertebrae

• Prefix letter (C for cervical, T for thoracic, L for lumbar), followed by number indicating placement on column

  • 7 cervical vertebrae

  • 12 thoracic vertebrae

  • 5 lumbar vertebrae

    At the base of the spinal column are the sacrum and coccyx.

    Sacrum formed by five fused sacral vertebrae.

    Coccyx contains three to five fused coccygeal vertebrae