In a simple experiment, Galvani disproved the hydraulic nerve-muscle model proposed by Descartes. Galvani removed a nerve and its attached muscle fibers from a frog and showed that ________ of the nerve caused ________ of the muscle.
a. electrical stimulation; relaxation
b. electrical stimulation; contraction
c. chemical stimulation; contraction
d. pressurization; relaxation
e. chemical stimulation; relaxation
Question 2
According to Descartes, the ________ was the point of interaction in the brain where the mind controlled the physical body.
a. hypothalamus
b. corpus callosum
c. amygdala
d. hippocampus
e. pineal body
Sliding filament mechanism of muscle contraction.
Media Practice Model
Pavlov’s Salivary Conditioning Experiment (1 of 2)
Single-Cell Model
Holley’s two-dimensional cloverleaf model of transfer RNA
Molecular model of homologous recombination in meiosis