In the sympathetic division of the ANSa. an important characteristic is convergence of neurons. b. preganglionic fibers are generally longer than postganglionic fibers. c. the preganglionic cell body is located in the lateral horn of the spinal cord. d. a single preganglionic fiber usually synapses with a single postganglionic fiber. e. preganglionic fibers emerge from the cervical portion of the spinal cord.

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens