The Human Brain 1. Midbrain a. Superior and inferior colliculi function in visual and auditory systems. Basal ganglia- centers for motor coordination Emotions depend on interaction between cerebral cortex and limbic system. Programs motor cortex to move lips, tongue, speech muscles. The Ear Balance- semicircular canals.
Canals have hair cells and calcium carbonate crystals.
Sliding Filament Theory of Muscle Contraction 1. Sarcomere shortens, filaments remain the same length. Ach from motor neuron depolarizes sarcolemma. Muscle fibers contain creatine phosphate. Storage form of high energy phosphates.