If someone hears a high-pitch, quiet sound (the whisper of a flute) followed by a booming, low-pitch tone (the boom of a bass drum), what differences in activity of the cochlea allowed them to recognize the differences?
What will be an ideal response?
High-pitch, quiet sound: base of cochlea is active but generates a low frequency of action potentials. Low-pitch and loud sound: high frequency of action potentials generated at cochlear apex.
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A. They circulate the cerebrospinal fluid. B. They produce cerebrospinal fluid. C. They phagocytize tissue debris. D. They help form the blood-brain barrier. E. They form myelin in the CNS.
The study of the changes in form that occur between conception and physical maturity is called ________ anatomy
A) developmental B) clinical C) systemic D) embryological E) physiological
The ventricles begin to fill during ventricular diastole.
a. true b. false
In which type of joint are two bones joined so firmly together they cannot move?
A. A fibrous joint B. A synostosis C. A syndesmosis D. A diarthrosis E. A symphysis