Control and coordination

In this chapter, you will learn to:

• Describe key features of the endocrine system, focusing on the hormones insulin, glucagon, and ADH.

• Compare how mammals use the endocrine and nervous systems to coordinate responses to internal and external stimuli.

• Explain the structure and function of sensory and motor neurons and outline their roles.

• State the function of intermediate neurons.

• Summarize the role of sensory receptor cells, using a chemoreceptor in a human taste bud as an example.

• Describe and explain how nerve impulses are transmitted.

• Describe the structure and function of cholinergic synapses and explain how they work.

• Describe the ultrastructure of striated muscle and explain how muscle contraction occurs in response to motor neuron impulses.