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What happens after ATP binds to the myosin head during the crossbridge cycle?

Which of the following would increase the activity of protein kinase A?

True or false: Language ability is accomplished by the cerebral cortex.

Which system is the reflex action controlled by?

Do parasympathetic post-ganglionic neurons release acetylcholine?

Do parasympathetic pre-ganglionic neurons release acetylcholine? 

Latrotoxin is a compound found in black widow venom that opens voltage-gated calcium channels. What effect would you expect to observe in a neuron when a person is exposed to this toxin?

Is decreased blood pressure associated with an elevated sympathetic or parasympathetic nervous system activity? 

A cell has a total membrane potential of -70 mV. Cation A is found in both the ECF and ICF and has an equilibrium potential of +45 mV. Cation B is found in both the ECF and ICF and has an equilibrium potential of -85 mV. True or false: Cation A has a higher concentration in the ICF than the ECF. (0.5 pts.)

True or false: The strength of an action potential depends on the number and type of graded potentials. (0.5 pts.)