Automatic response to sensory input

Chemical messenger that triggers muscle contractions

Junction between a sending and a receiving neuron

Neural network

Release neurotransmitters into the spatial junctions between neurons

Receive incoming signals from other neurons

Control pain through the release of opiate-like chemicals into the brain

Leaky channels move ions against gradients; gated channels do not.

Leaky channels respond to hormones; gated channels to electricity.

Leaky channels are always open; gated channels open by signals.

Leaky channels use active transport; gated channels work in cell division.

none of these answers

+30 mV

-83 mV

+83 mV

+64.3 mV

anions will enter the cell

the membrane potential will become more negative

Y- ions will leave the cell

the membrane potential will not change

the membrane potential will become more positive

anions will flow into the cell

+40 mV

-70 mV

+55 mV

-30 mV

Both

the nervous and endocrine systems use the bloodstream for signal transmission.

Both

the nervous and endocrine systems respond at the same speed but use different

chemicals.

The

nervous system is fast and transmits signals through neurons, while the

endocrine system is slow and uses the bloodstream.

The

nervous system is slow and uses the bloodstream, while the endocrine system is

fast and uses neurons.