A buying hedge is also called a long hedge. Buying hedge means buying a futures contract to hedge a cash position. Dealers, consumers, fabricators, etc, who have taken or intend to take an exposure in the physical market and want to lock-in prices, use the buying hedge strategy. buying hedge is also called a long hedge. Buying hedge means buying a futures contract to hedge a cash position. Dealers, consumers, fabricators, etc, who have taken or intend to take an exposure in the physical market and want to lock-in prices, use the buying hedge strategy.
An excitatory synapse is a synapse in which an action potential in a presynaptic neuron increases the probability of an action potential occurring in a postsynaptic cell. Neurons form networks through which nerve impulses travel, each neuron often making numerous connections with other cells.
At a chemical synapse, one neuron releases neurotransmitter molecules into a small space (the synaptic cleft) that is adjacent to another neuron. The neurotransmitters are kept within small sacs called vesicles, and are released into the synaptic cleft by exocytosis.hemical synapses are specialized junctions through which neurons signal to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system.