Bone Flashcards
What germ layer does skeletal muscle, cartilage and bone arise from?
mesoderm
What germ layer does epithelium arise from?
endoderm
What germ layer does nervous tissue arise from?
ectoderm
At what vertebral level is the sternal angle situated?
T2
At what vertebral level is the summit of the iliac crest found?
L5
At what vertebral level is the xiphisternal joint situated?
T9
What makes ribs ‘true’?
if they are attached to the sternum
Which ribs are ‘true ribs’?
1-7
What makes ribs ‘false’?
are not directly attached to the sternum
Which ribs are false?
8-10
Which ribs are ‘floating ribs’?
11 and 12
Where 3 places do you find fibrous joints?
cranium, interosseus membrane between radius and ulna, teeth
Where do you find primary cartilaginous joints? Also known as synchondroses.
between epiphyses and diaphyses (The epiphyseal plate)
Where do you find secondary cartilaginous joints? Also known as symphyses.
in the axial plane e.g. pubic symphysis and the IV discs
What is an example of a synovial ball and socket joint?
the glenohumeral joint
What is an example of a synovial hinge joint?
knee, elbow (ulna, radius- humerus)
What is an example of a synovial condyloid joint?
knuckle joints
atlanto-occipital joint
What is an example of a synovial saddle joint?
thumb
What is an example of a synovial planar joint?
between tarsal bones, lateral articular surfaces of vertebral
What is an example of a synovial pivot joint?
atlanto-axial joint
What are 3 main components of the synovial joint?
joint cavity and synovial fluid articular cartilage joint capsule (composed of synovial membrane and fibrous layer and ligaments)
