One type of poison arrow frog toxin binds specifically to nicotinic cholinergic receptors and causes tetanic paralysis of the muscle. Would the poison arrow frog toxin increase or decrease autonomic output? Explain your answer choice based on neurotransmitters and receptors on the pre-and postganglionic neurons in the sympathetic and parasympathetic nervous system.

One type of poison arrow frog toxin binds specifically to nicotinic cholinergic receptors and causes tetanic paralysis of the muscle. Would the poison arrow frog toxin increase or decrease autonomic output? Explain your answer choice based on neurotransmitters and receptors on the pre-and postganglionic neurons in the sympathetic and parasympathetic nervous system.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter29: Neural Control

Section: Chapter Questions

Problem 13SA: Match the terms with their descriptions. ____ thalamus a. coordinates motor activity ____ dopamine...

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Match the terms with their descriptions. ____ thalamus a. coordinates motor activity ____ dopamine b. connects the hemispheres ____ limbic system c. protects brain and spinal cord from some toxins ____ corpus callosum d. one type of neurotransmitter ____ cerebral cortex e. support team for neurons ____ cerebellum f. wrap brain and spinal cord ____ neuroglia g. roles in emotion and memory ____ ganglion h. most complex integration ____ blood-brain barrier i. cluster of neuron cell bodies ____ meninges j. regulates sleep-wake cycle
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Which of the following statements best describes the axonal projection patterns of upper motoneurons located in the primary motor cortex? Upper motoneurons located in the primary motor cortex are cholinergic and their axons project directly to muscle fibres to control voluntary muscle movements. Upper motoneurons located in the primary motor cortex are glutamatergic and their axons project to the thalamus, brain stem and directly to muscle fibres to control voluntary muscle movements. Upper motoneurons located in the primary motor cortex project to the spinal cord where they synapse with cholinergic lower motoneurons that control voluntary muscle movements. Upper motoneurons located in the primary motor cortex project to neurons in the cerebellum, thalamus and brain stem that in turn contact lower motoneurons in the spinal cord to control voluntary muscle movements.
the bacterium clostridium tetani produce a toxin called tetanospasmin, the causative agent os the disease tetanus. the toxin prevents the release of inhibitory transmitters in the CNS and so blocks the resulting IPSPs they would normally generate. what are some of the functions of inhibitory synapses? considering this what symptoms would you expect from the disease tetanus, and why? ( hint: imagine trying to stand up if all of the muscles in your lower limb contracted at the same time.)