Anatomy-skeletal System Flashcards
Mature bone cells
Osteocytes
Bone forming cells
Osteoblasts
Process by which cartilage is replaced by bone
Ossification
T or F articular cartilage and epiphyseal plates undergo ossification
False
Allows more growth of long bones until puberty
Epiphyseal plates
Includes the cranium, vertebrae column and the bony thorax
The axial skeleton
Forehead
Frontal bone
Superior and lateral wall of the cranium
Parietal bones
Temples
Temporal bones
Base of the skull
Occipital bone
Butterfly shaped bone the forms the width of the skull
Sephanoid bone
Irregular bone forming the roof of the nasal cavity and the sides of the orbits
Ethmoid bone
Upper jaw
Maxillary
Forms the posterior part of the hard pallete
Pallentine
Cheek bones
Zygomatic
Forms the medial walls of each orbit (tear ducts)
Lacrimal
Bridge of bones
Nasal
Forms the nasal cavity
Vomer
Lower jaw
Mandible
Floating bone.
Hyoid
What are the divisions of the vertebrae column and how many bones are in each
Cervical-7
Thorasic-12
Lumbar-5
5 fused vertebrae forming the posterior walls of the pelvis
Sacrum
3-5 fused vertebrae forming the tailbone
Coccyx
Consists of sternum, ribs and thorasic vertebrae
Bony thorax
The sternum is a flat bone consisting of how many bones?
Three
Which ribs are true ribs?
The first seven
How many pairs of ribs are there
Twelve
How many false ribs are there
Five
Last two pairs of false ribs are called?
Floating ribs
What contains the bones of the limbs and girdles?
Appendicular skeleton
Arm bone that is thumbside
Radius
Arm bone that is pinky side
Ulna
Large fan shaped hip bone. Makes up most of the hip
Ileum
Sit down bone. Most inferior hip bone
Ischium
Most anterior hip bone
Pubis
Shin bone. Larger and more medial
Tibia
Lower leg bone. Thin and lateral
Fibula
Heel bone
Calcaneus
Joints are also called?
Articulations
Two functions of joints?
Hold bones together
Give skeleton mobility
No movement allowed
Synarthrosis
Slightly moveable
Amphiarthrosis
Freely moveable
Diarthrosis
Two ways that joints are classified?
Structure and function
Axial skeleton consists of these two types of joints
Synarthrosis
Amphiarthrosis
Appendicular skeleton consists of this kind of joint
Diarthrosis
Fibrous joints consist of?
Fibrous tissue (skull)
Cartilaginous joints consist of?
Cartilage pads (vertebrae column)
Synovial joints consist of?
Joint cavity with synovial fluid (freely moveable joints of the limbs)
Who is the most awesome person in the whole wide world???
My amazing girlfriend, McKenna. :)
What are the parts of a long bone?
Diaphysis- shaft
Ephysis- ends
