Week 4/5 - Skeletal System Flashcards
What are the 4 different type of bone classifications?
Long, short, flat and irregular bones
Features of a Long bone
Cylindrical in shape, longer than it is wide
Features of a short bone
Cube-like in shape, approx. equal in length, width and thickness
Provide stability and support as well as limited motion
Features of sesamoid bone
Specific type of short bone, round bone that is like a sesame seed
Form in tendons wheee a great deal of pressure is generated in a joint, protect tendons wear and tear
Increase distance between tendon and a joint
Features of a flat bone
Typically thin
Curved
Point of attaché ent for muscles and often protect internal organs
Features of irregular bones
Doesn’t fit any shape classification
Complex shapes,
Example of a long bone
Femur, tibia, fibula, phalanges, ulna, radius
Examples of short bones
Carpals, tarsals, pisiform, trapezoidal, scaphoid, calcaneas
Examples of flat bones
Sternum, occipital, frontal, nasal, pubis symphisis
Examples of irregular bones
coccyx, vertebrae, hyoid
Examples of sesamoid bones
Patellae
2 parts of a long bone and their features
Diaphysis and epipysis
Diaphysis: tubular shaft that runs between the proximal and distal ends of the bone
Walls of diaphysis composed of dense and hard cortical bone tissue
Epiphysis: wider section at each end of the bone (proximal and distal ends)
Each epiphysis meets the diaphysis at the metaphysis (growth plate)
What is the metaphysis
Growth plate
2 divisions of skeletal system
Axial skeleton and appendicular skeleton
Axial: includes all bones of the head, neck , thorax and back
Appendicular: upper and lower limbs plus bones that attach each limb to the axial skeleton
What is arrow A and B pointing to?
Arrow A = brain case
Arrow B = facial bones
What is arrow A pointing to?
Frontal bone
What is arrow B pointing to?
Parietal bone (right)
What is arrow C pointing to?
Temporal bone (right)
What is arrow D pointing to?
Sphenoid bone
What is arrow E pointing to?
Maxilla bone (left)
What is arrow F pointing to?
Maxilla bone (right)
What is arrow G pointing to?
Mandible
What is arrow A pointing to?
Parietal bone (right)
What is arrow B pointing to?
Frontal bone
What is arrow C pointing to?
Temporal bone (right)
What is arrow D pointing to?
Sphenoid bone
What is arrow E pointing to?
Occipital bone
What is arrow F pointing to?
Maxilla bone (right)
What is arrow G pointing to?
Mandible
What is arrow A pointing to?
Coronal suture
What is arrow B pointing to?
Left parietal bone
What is arrow C pointing to?
Frontal bone
What is arrow E pointing to?
Right parietal bone
What is arrow A pointing to?
Malleus of the middle ear
What is arrow B pointing to?
External acoustic meatus of temporal bone
What is arrow C pointing to?
Mastoid process of temporal bone
What is arrow A pointing to?
Occipital bone
What is arrow B pointing to?
Occipital bone: external occipital protuberance
What is arrow C pointing to?
Foramen magnum of the occipital bone
What is arrow E pointing to?
Atlanto-occipital joint
What is arrow D pointing to?
Jugular foramen
What is arrow A pointing to?
Hypophyseal fossa of sella turcica of sphenoid
What is arrow A pointing to?
Superior nasal concha of ethmoid
What is arrow B pointing to?
Middle nasal concha of ethmoid
What is arrow C pointing to?
Superoanterior portion of osseous nasal septum
What is arrow A pointing to?
Hyoid bone
What is arrow A pointing to?
Cervical vertebrae (C1-C7)
What is arrow B pointing to?
Thoracic vertebrae (T1-T12)
What is arrow C pointing to?
Lumbar vertebrae (L1-L5)
What is arrow D pointing to?
Fused vertebrae I’d sacrum and coccyx form sacrococcygeal curve
What is arrow E pointing to?
Intervertebral disc
What is arrow F pointing to?
Sacrum
What is arrow G pointing to?
Coccyx
What is arrow A pointing to?
Jugular notch
What is arrow B pointing to?
Clavicle notch
What is arrow C pointing to?
Clavicle
What is arrow D pointing to?
Manubrium
What is arrow E pointing to?
Sternal angle
What is arrow F pointing to?
Costal cartilage
What is arrow G pointing to?
Body of the sternum
What is arrow I pointing to?
Intercostal space
What is arrow A pointing to?
Spinous process
What is arrow B pointing to?
Lamina
What is arrow C pointing to?
Transverse process
What is arrow D pointing to?
Pedicle
What is arrow E pointing to?
Facet of superior articular process
What is arrow F pointing to?
Body
What is arrow G pointing to?
Vertebral foramen
What is arrow A pointing to?
Anulus fibrosus
What is arrow B pointing to?
Nucleus pulposus
What is arrow A pointing to?
Spinous process
What is arrow B pointing to?
Vertebral foramen
What is arrow C pointing to?
Lamina
What is arrow D pointing to?
Pedicle
What is arrow H pointing to?
Superior articular process
What is arrow G pointing to?
Transverse foramen
What is arrow I pointing to?
Transverse process
What is arrow F pointing to?
Body
What is arrow E pointing to?
Groove of spinal nerve
What is arrow A pointing to?
Dens
What is arrow B pointing to?
Anterior arch
What is arrow C pointing to?
Transverse process
What is arrow D pointing to
Transverse ligament
What is arrow E pointing to?
Transverse foramen
What is arrow F pointing to?
Superior articular facet
What is arrow G pointing to?
Posterior arch
What is arrow A pointing to?
Dens
What is arrow A pointing to?
Intervertebral disc
What is arrow B pointing to.
Vertebral body
What is arrow C pointing to?
Vertebral foramen
What is arrow D pointing to?
Transverse process