Raystown Lake. The largest man-made lake built by the Army Corps of Engineers in Pennsylvania is Raystown Lake. It is also the second largest man-made lake in the state, at 8,000 acres. In Huntingdon County, Pennsylvania Raystown Lake is part of a 29,000-acre project that serves as a home for recreation in the area. The area is popular for fishing, hunting, hiking, swimming and boating.
Protein characteristic of the postsynaptic membrane. In a chemical synapse, the postsynaptic membrane is the membrane that receives a signal (binds neurotransmitter) from the presynaptic cell and responds via depolarisation or hyperpolarisation. The postsynaptic membrane is separated from the presynaptic membrane by the synaptic cleft.
1 The postsynaptic membrane is the third part of the synapse. 2  This portion of the outer membrane of the receiving neuron is functionally specialized.. 3  The structure of a synapse is clearly illustrated in Figure 5.2, which shows a special type of synapse between the endfoot of a neuron and a muscle fiber. Loewi tested two isolated frog hearts, one with the sympathetic and vagus nerves intact, the other with the nerves removed. 2  A small tube containing salt water was placed in the heart with the nerves attached. 3  When he stimulated the vagus nerve, the heartbeat slowed, as expected.