Homework help-psych

I know Endorphins limit pain or something

and neurons communicate by using dendrites, soma, and axon terminals. I think only certain process can can into certain axon retrievers. And the axon terminal is like a hallway full of doors because as the data travels through it it has to open each door separately.

This was all on my last test so hope I got it right or it made sense.

Seems weird for psych but I will try..

Explain why, at every level, our existenceis both part of a larger system and a combination of smaller systems?

At every level we are a part of an larger system, which is in turn part of an even larger system.  No matter where you live, you are part of a community or town or city.  This is in turn part of a county, which is part of a state, then a country, then a continent, then the world, solar system, galaxy, universe, etc.  Or with a different approach you are part of a personality, which can connect to other personalities, which connect to even more personalities, forming a human network.

At the same time you are a combination of smaller systems.  Biologically you are part of a family, in your community.  You are then made up of internal systems, muscles, respiratory etc, these are then made up of cells, which are made up of organelles, which are made up of molecules, which are made up of atoms, which are made up of electrons, protons and neutrons.  It gets smaller and smaller.  With a different approach, your personality is connected to others, but at the same time you are a combination of your feelings, your memories, your looks and character.  Each are composed of smaller parts, your memories have distinct characteristics etc.

holy crap dude, i love you no homo.

Nailed the first question.

Discuss the significance of endorphins, and explain how drugs influence transmitters.

Endorphins are natural opiates released in response to pain or exercise. Drugs and other chemicals affect communication at the Synaptic Cleft. Agonists for example excite by mimicking particular neurotransmitters or by blocking their reuptake.

Describe how nerve cells communicate,and discuss the importance of neurotransmitters for human behavior.

Nerve cells communicate by means of action potential. Neurons are sent from the dendrites down the axon and to the axon terminal. If the receiving neuron, if the signals from the neurotransmitters are strong enough generate their own action potential and that relays messages to other cells.

Each neurotransmitter travels designated paths in the brain and has a particular effect on behavior and emotion. Acetylcholine for example affects muscle action, learning and memory.