TAMU BIOL 320 Lab Practical 1 | 160 Questions With 100% Correct Answers.

What are paravertebral or sympathetic chain ganglia? Answer A longitudinal series of sympathetic postganglionic neurons. What are the 3 main functions of the nervous system? Answer - Sensory input - Sensory integration - Motor output Through ________ the PNS and CNS communicate. Answer Cranial and spinal nerves Afferent impulses are also known as ______________ impulses. Answer Sensory Efferent impulses are also known as ______________ impulses. Answer Motor What are the two divisions of the autonomic nervous system? Answer Sympathetic and parasympathetic What are the basic functions of the sympathetic nervous system? Answer Fight or flight type responses What are the basic functions of the parasympathetic nervous system? Answer Basic housekeeping and idling functions T/F: Cranial nerves designated as being motor ONLY transfer motor information. Answer False: There is some sensory information being passed due to proprioception List the three layers of nerve coverings from most super ficial to deepest. Answer - Epinurium - Perineurium - Endonurium What is the function of glial cells? Answer Support, protect, and maintain nerve tissue Define: Neuroglia Answer A network of glial cells In the CNS, cerebrospinal fluid is produced by _________ cells. Answer Glial What are the glial cells of the CNS? Answer - Astrocytes - Microglia - Ependymal - Oligodendrocytes What are the glial cells of the PNS? Answer - Schwann - Satellite Desc ribe the function(s) of astrocytes. Answer - Make exchanges between capillaries and neurons - Guide migration of young neurons in synapse formation **Same as satellite cells** Describe the function(s) of microglia. Answer - Monitor the health of neuro ns - Sense when neurons are under attack Describe the function(s) of ependymal cells. Answer - Form semi -permeable barrier between cerebrospinal fluid and CNS tissue - Circulate cerebrospinal fluid Describe the function(s) of oligodendrocytes. Answer Form myelin sheath around thicker CNS fibers Describe the function(s) of satellite cells. Answer - Make exchanges between capillaries and neurons - Guide migration of young neurons in synapse formation