This pathway provides an in-depth look at interactions of skeletal muscles; their fascicle arrangement, & their lever systems; naming skeletal muscles; axial muscles of the head, neck, & back; axial muscles of the abdominal wall & thorax; muscles of the pectoral girdle & upper limbs; and appendicular muscles of the pelvic girdle & lower limbs. The pathway also provides vocabulary support for these topics, as well as opportunities for learners to self-assess their understanding by analyzing figures and answering questions.