This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which layer contributes to the profuse bleeding of Scalp 
Select and explain. 
A. Connective Tissue, B. Skin, C. Aponeurosis, D. Loose connective tissue
A: Connective Tissue
Answer: A: Connective Tissue 
Explanation: The second layer of the scalp is composed of dense fibrous connective tissue, and this layer houses the main networks of nerves and vessels that enter the scalp from its periphery. The walls of the arteries within the scalp are tightly attached to the surrounding connective tissue bed. When these vessels are severed, they bleed profusely because the fibrous tissue holds apart the cut ends of the severed vessels and does not allow the vessel to retract (as seen in other parts of the body).