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.
In a typical chemical synapse between two neurons, the neuron from which the nerve impulse arrives is called the presynaptic neuron. The neuron to which the neurotransmitters (chemical messengers) bind is called the postsynaptic neuron. A presynaptic neuron has several specialized structures that distinguish it from a postsynaptic neuron.