23. The neurotransmitter thate xcites skeletal muscle but inhibits cardiac muscl

Question

23. The neurotransmitter thate xcites skeletal muscle but inhibits cardiac muscle is called A. Norepinephrine B. Dopamine C. Histamine D. Acetylcholine E. ?-endorphin 24. Clusters of cell bodies outside the CNS are called A. Ganglia B. Receptors C. G yrus D. Central Canal E. adrenergic 25. How is an excitatory cholinergic synapse different from an adrenergic synapse? A. cholinergic involves norepinephrine where adrenergic involves acetylcholine B. cholinergic involves the neurotransmitter directly stimulating ligand-gated channels to open where adrenergic involves a secondary messenger opening ligand-gated channels C. adrenergic involves the neurotransmitter directly stimulating ligand-gated channels to open where cholinergic involves a secondary messenger opening ligand-gated channels D. cholinergic is excitatory where adrenergic is inhibitory E. both involve cAMP as a secondary messenger, but adrenergic is slower 26. Motor neurons exit the spinal cord through the to connect the the PNS A. posterior root B. ventral root C. lateral hor D. central canal 27. Each spinal nerve receives sensory input from a specific area of skin called A. Dorsal root B. Pia Mater C. Dermatome D. Lateral columns 28. Parasympathetic nerves travel mainly through spinal nerves to reach their target tissue. A. True B. False 29. Connective tissue surrounding an individual axon within a nerve is A. Epineurium B. Perineurium C. Endoneurium D. Dura Mater E) Pia Mater 30. IPSPs (inhibitory postsynaptic potentials) are local depolarizations R) are local hyperpolarizations. meahility to sodium ions.

Explanation / Answer

23. D Acetylcholine

24. A Ganglia

25.D

26.B Ventral root

27. C Dermatome

28. A True

29. C Endoneurium

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