Emily F. McCoy Ch. 3

Emily F. McCoy Ch. 3: 
a) What are the two fundamental types of resonance that occur in the human body? Forced, or conductive, resonance and free, or sympathetic resonance
b) Why are the chest and head not good resonators for the projection of sound? These are forced resonators, but they don't make the voice louder or alter the timbre. The tissues and bone act as dampeners. 
c) What are the four traits common to all musical instruments, including the voice? 1-power source 2-vibrator 3-resonator 4-articulator
d) Why is the vocal tract  considered to be a quarter-wave resonator? Because it is a closed/open tube. Resonance first occurs when the physical length of the resonator equals one quarter wavelength of the sound wave passing through it.
e) What is the relationship between the harmonic series and the resonance series of a quarter-wave system? The resonance series only contains the odd-numbered harmonics. 
f) Define musical resonance. Intensification and enriching of musical tone by supplementary vibration.
g) What anatomical structures function as free resonators in the human voice? Trachea, laryngopharynx, oropharynx, oral cavity, nasopharynx, and nasal cavity.