Which ear bone(s) does the 2nd branchial arch form?
From what does the ligamentum teres hepatis arise?
Is a secondary spermatocyte N or 2N?
What is the bony labyrinth filled with and Describe its composition?
Which type of hypersensitivity reaction is a mast cell involved in?
Does the celiac ganglion arise from neural crest (ectoderm), mesoderm, or endoderm?
What does the ductus venosus shunt blood away from?
What are the major structures of the lymph node medulla?
What cells are found in the lymph node paracortex?
An aneurysm of the anterior communicating artery may cause what type of defects?
What are 3 functions of a macrophage?
Does bone arise from neural crest (ectoderm), mesoderm, or endoderm?
What is the primary regulatory control of zona reticularis secretion?