Thoracic and Coracoid Arteries In Two Families of Birds, Columbidae and Hirundinidae

by Marion Anne Jenkinson

Fig. 3. Progne subis. Medial view of left half of thorax. Not all muscles shown. See Fig. 4 for identification of arteries. (× 1.5.)

Fig. 4. Progne subis. Lateral view of left half of thorax. (× 1.5.)

(Applies also to Fig. 3.)

1. Subclavian artery.
2. Coracoid artery.
3. Thoracic artery.
4. (Unnamed.) Supplies M. coracobrachialis posterior.
5. (Unnamed.) Supplies M. subcoracoideus.
6. (Unnamed.) Supplies M. sternocoracoideus and sternum.
7. (Unnamed.) Supplies M. subcoracoideus.
8. (Unnamed.) Supplies M. sternocoracoideus, M. coracobrachialis posterior, and sternum.
9. Pectoral artery.
10. Axilliary artery.
11. (Unnamed.) Supplies M. coracobrachialis posterior.
12. (Unnamed.) Supplies M. supracoracoideus.
13. (Unnamed.) Supplies M. costi-sternalis anterior.
14. Carotid artery.

Fig. 5. Scardafella inca. Lateral view of left half of thorax. M. pectoralis thoracica (area of insertion indicated by dotted line) has been removed. Muscles not described in text are not shown. See legend for Fig. 7 for identification of arteries. (× 1.)

Fig. 6. Scardafella inca. Lateral view of left half of thorax. See legend for Fig. 7 for identification of arteries. (× 1.)