Table 4.1 Divisions of the autonomic nervous system. Cut out this table and past

Question

Table 4.1 Divisions of the autonomic nervous system. Cut out this table and paste to the left side of your journal Complete the table below by using an X to show which division is involved in each condition Condition Sympathetic Parasympathetic Postganglionic axons secrete norepinephrine (adrenergic) Postganglionic axons secrete acetylcholine (cholinergic) Long preganglionic axon; short postganglionic axon Short preganglionic axon; long postganglionic axon Arises from cranial and sacral nerves Arises from nerves T1 to L3 Fight-or-flight system Resting-digesting system Concerned with "D activities Involved in body's maintenance functions Part of the motor division of the peripheral nervous system Can override the other system Constricts pupils, decreases heart rate Has unique features including thermoregulation and release of renin from kidneys 15

Explanation / Answer

Postganglionic axons secrete norepinephrine

Postganglionic axons secrete norepinephrine

Sympathetic Explanation:in sympathetic division, neurons are adrenergic. Postganglionic axons secrete acetylcholine parasympathetic In parasympathetic division, neurons are cholinergic. Long preganglionic axon, short postganglionic axon parasympathetic the have long preganglionic axon and short postganglionic axon. Short preganglionic axon, long postganglionic axon sympathetic they have short branching preganglionic axon Arises from cranial and sacral nerves parasympathetic preganglionic neurons originate from lateral part of brain stem. Arises from nerves T1 to L3. Sympathetic preganglionic neurons originate in lateral horns of T1 to L3 spinal cord segments. Fight or flight system. Sympathetic characterized by sudden release of hormones Resting digesting system parasympathetic No hormones released suddenly. Concerned with 'D' activities parasympathetic Concerned with 'E' activities sympathetic Involved in body's maintenance function parasympathetic promotes conservation of energy Part of the motor division of the peripheral nervous system parasympathetic involved in motor functions Can override the other system sympathetic as it is involved in fight or flight functions, it can override parasympathetic functions. Constricts pupils, decrease heart rate parasympathetic rest and digest type. Doesn't involve any hormones. Has unique features including thermoregulation and release of renin from kidneys. Sympathetic renin secretion is stimulated by beta-1 adrenergic receptor activation.

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