Biology 351
Necturus Muscular System
Hypobranchial.
Geniohyoid
Intermandibular
Interhyoid
Sphincter colli
Branchiomeric muscles.
Intermandibular
Interhyoid
Sphincter colli
Branchiohyoid
Pectoral muscles.
Pectorals
Latissimus dorsi
Triceps
Scapular deltoid
Cucullaris (a branchiomeric muscle)
Muscles of the trunk.
Epaxial:
dorsalis trunci
Hypaxial:
External oblique
Internal oblique
Transversus
Back muscles. Homologous to epaxial muscles in fish.
Three layers of the hypaxial muscle oep = External oblique oi = Internal oblique ta = Transversus Note: oes = obliquus externus superficialis (not responsible for) Source: http://people.eku.edu/ritchisong/342notes6.htm
Back muscles. Homologous to epaxial muscles in fish.
A = Intermandibular (top) B = Interhyoid (middle) C = Sphincter colli (bottom) Note: there is no clear distinction between the muscles.
Top layer consisting of sphincter colli and intermandibular pulled up. A = branchiohyoid B = geniohyoid
A = Intermandibular (top) B = Interhyoid (middle) C = Sphincter colli (bottom) Note: there is no clear distinction between the muscles.
A = triceps B = pectorals
External anatomy.