Like some of the chemical weapons, biological weapons may also be useful as area denial weapons. These agents may be lethal or non-lethal, and may be targeted against a single individual, a group of people, or even an entire population.
Acetylcholine is a chemical messenger, a neurotransmitter, released by nerve cells in many parts of the peripheral nervous system. It controls the contraction of all skeletal or voluntary muscles, for instance. It also affects the contraction of smooth and cardiac muscle.
3. Acetylcholine binds a receptor on the skeletal muscle cell and generates an action potential, increasing Ca++ release from the sarcoplasmic reticulum. 4. Ca++ initiates contraction, resulting in shortening of the muscle cell and, consequently, movement.hat are the steps in muscle contraction. 1. Efferent motor cortex axons synapse on the spinal cord and generate an action potential in the Î±-motor neuron. 2. The action potential travels to the axon terminal, releasing acetylcholine into the synaptic cleft.