The Autonomic Nervous System

Review the structure of a reflex arc.

Compare this anatomy to that of a somatic reflex arc.

Basic Structure of a Visceral Reflex

What is the advantage of a 2nd processing center?

Anatomy of the Motor Output in Sympathetic and Parasympathetic nerves

Describe the following comparisons:

•location of pre-ganglionic neuron cell body

•location of ganglia

•neurotransmitter released at effectors

What neurotransmitter is released at all Autonomic ganglia?

Motor Neuron Pathways of the ANS

Why do Parasympathetic and Sympathetic stimulation have opposite effects on effectors? (p. 175 in packet)

Extrinsic Influences on the Heart: an example of ANS Dual Innervation

What is the origin of Parasympathetic nerves? … Sympathetic nerves?

Name the neurotransmitter released at autonomic ganglia.

Name the neurotransmitter released from Parasympathetic nerves at effectors.…from Sympathetic nerves at effectors.

Does the adrenal medulla receive dual innervation? Explain.

ANS Innervation of visceral organs

Integration of the Nervous & Endocrine Systems during Stress

Describe the actions of the hormones listed in this figure.