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Question 1

What are the two anterior intercoastal arteries?

Answer 1

Internal thoracic artery (from the subclavian artery) (bc the thorax is anterior, and the the intercostal spaces are internal)

Musculophrenic artery (a branch of the internal thoracic artery)

Question 2

Where does the internal thoracic artery originate from?
What does it supply?

Answer 2

Originate: from subclavian artery

Supply: 1st-6th (bc it is the main so it is going to supply the top (6))

Question 2

Where does the Musclophernic artery originate from?
What does it supply?

Answer 2

Originate: from internal thoracic artery

Supply: 7th-9th

Question 3

Which part of the subclavian artery does the Internal thoracic artery branch from?
What its branches?

Answer 3

Branches from: First part of the subclavian artery

Internal thoracic artery branches:
Musculophrenic artery

Superior epigastric artery

Pericardiacophrenic artery

Perforating arteries

Anterior intercostal arteries