Bio 253 Exam 2 Questions And Answers 100% Correct (Graded A+)

Cholinergic fibers release {Ans: acetylcholine (ACh)}Venerate Root has what kind of fibers {Ans: motor fibers (efferent)}preganglionic {Ans: Release Ach}Acetylcholine binds to what kind of receptors. {Ans: cholinergic}Significance of the phrenic nerve {Ans: it's housed in the cervical plexus innervates the diaphragm}Afferent {Ans: Afferent neurons are sensory neurons that carry nerve impulses from sensory stimuli towards the central nervous system and brain}Reflex Arc {Ans: the nerve pathway involved in a reflex action including at its simplest a sensory nerve and a motor nerve with a synapse between.}The action of acetylcholine is quickly terminated by its being hydrolyzed by the enzyme {Ans: acetylcholinesterase.}Dorsal root has what kind of fibers {Ans: Sensory Fibers (afferent)}cranial nerves {Ans: Oh Olfactory SENSORY Oh Optic SENSORY Oh Oculomotor MOTOR To Trochlear MOTOR Touch Trigeminal MIXED And Abducens MOTOR Feel Facial MIXED Very Vestibulocochlear SENSORY Good Glossopharyngeal MIXED Vagina's Vagus MIXED and Accessory MOTOR Hymen Hypoglossal MOTOR page:489 21-2}How many pairs of spinal nerves are connected to the spinal cord? {Ans: 31}Dendrites and cell bodies of sympathetic preganglionic neurons are located in the {Ans: gray matter of the thoracic and upper lumbar segments of the spinal