Final answer:
The autonomic nervous system controls the actions of internal viscera and the release of secretions from glands, making option 4 the correct answer.
Step-by-step explanation:
The internal viscera and controls release of secretions from glands are correct. The autonomic nervous system (ANS) operates largely outside of conscious control and is responsible for the involuntary functions that maintain homeostasis in the body. It sends nerve signals to internal organs to regulate activities such as heartbeat, digestion, and glandular secretions.
The ANS is divided into the sympathetic and parasympathetic nervous systems, which often have opposing effects to balance the body's response to different situations. It does not control skeletal muscle contractions, which are under the purview of the somatic nervous system. It controls the functioning of organs such as the heart, lungs, and digestive system, as well as the secretion of sweat from sweat glands.