Where does positive and negative selection occur in the thymus?
After recuperating from a gunshot wound to the buttocks resulting from a hunting accident, your patient exhibits a positive Trendelenburg's sign. Explain.
Describe the role of dynein in cilia structure?
Does bone arise from neural crest (ectoderm), mesoderm, or endoderm?
Does the parathyroid arise from neural crest (ectoderm), mesoderm, or endoderm?
What is the primary function of a mast cell?
What are the female sex hormones secreted by ovary?
The central retinal artery is a branch off what larger artery?
Which muscles are derivatives of the 1st branchial arch?
Is the mammillary body part of the limbic system?
What does serous membrane do?
What is the function of smooth ER?
How is the appendix located?
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