68 



ANATOMY OF THE DOMESTIC FOWL 



The ligamenlum capsulare capituli fibula is spread out between 

 the head of the fibula, or capitulum fibulae, and the superficies 

 glenoidalis peronea tibiae. 



FIG. 17. Muscles and tendons of the Head and posterior extremity. 



A. Section of neck with superficial muscles removed. i, Obliquo-transver- 

 sales. 2, Interspinales. 3, Intertransversales. 4, Interarticulares. 



jB. Head showing muscles, i, Beak. 2, Nostril. 3, Tongue. 4, Sublingual 

 salivary gland. 5, Pterygoideus. 6, Stylo-hyoideus. 7, Temporal. 8, Flexor 

 capitis inferior. 9, Rectus capitis lateralis. 10, Rectus capitis posticus major. 

 ii, Trachelo-mastoideus. 12, Eye. 13, Mylo-hyoideus. 14, Genio-hyoideus. 

 15, Biventer maxilla. 16, Digastricus. 17, Rectus capitis anterior minor. 



C. Foot of hen showing tendons. I, Flexor perforans digitorum profundus. 



2, Flexor perforatus medius primus pedis. 3, Sheath at joint through which 

 tendon passes. 4, Flexor perforatus indicis primus pedis. 5, Flexor perforatus 

 medius secundus pedis. 6, Flexor perforatus annularis primus pedis. 7, Flexor 

 longus hallucis. 



D. Outside view of leg of hen. i, Biceps flexor cruris. 2, Semitendinosus. 



3, Loop through which biceps flexor cruris passes. 4, Tibialis anticus. 5, 

 Flexor perforatus indicis secundus pedis. 6, Flexor perforatus medius primus 

 pedis. 7, Gastrocnemius. 8, Flexor perforatus annularis primus pedis. 9, 

 Flexor perfcratus medius secundus pedis. 10, Extensor longus hallucis. 



The ligamentum tibio-fibulare extends from the head of the fibula, 

 or capitulum fibulae, to the inner surface of the external crest, 

 or crista externa tibiae, of the tibia (Fig. 25, No. 3). 



