C. Duh. No one has to agree with a successful thesis.
The four muscles of the rotator cuff are the supraspinatus, infraspinatua, teres, and subcapularis. Hope this helps!
The initial stages of human embryogenesis.
8-cell embryo, at 3 days.
Blastocyst with an inner cell mass and trophoblast.
Trophoblast differentiation.
Histogenesis of the three germ layers.
Artificially colored - gestational sac, yolk sac and embryo (measuring 3 mm at 5 weeks)
Embryo attached to placenta in amniotic cavity.
