Question

15 questions about the anatomy of the cardiovascular system : question 4 : number 3 is pointing to ... the internal and external carotid arteries the anterior and posterior tibial veins the internal and external jugular veins

Explanation:

To solve this, we analyze the options:

1. The internal and external carotid arteries are in the neck/head but are arteries (red in typical diagrams), while the structure labeled 3 is a vein (blue).
2. The anterior and posterior tibial veins are in the leg, not the neck/head region shown.
3. The internal and external jugular veins are in the neck (blue, as veins carry deoxygenated blood, typically blue in such diagrams) and match the location of label 3.

Answer:

the internal and external jugular veins