Question

which actions are functions of the somatic nervous system? check all that apply.
□ regulates involuntary activities
□ increases heart rate and blood pressure
□ relays information to and from internal organs
□ stimulates digestion
□ regulates voluntary activities
□ relays information to and from skin and skeletal muscles

Explanation:

The somatic nervous system is part of the peripheral nervous system and is responsible for voluntary movements and relaying sensory information from the skin, skeletal muscles, etc. to the central nervous system and motor commands back.

• "regulates involuntary activities" is done by the autonomic nervous system (parasympathetic and sympathetic), not somatic.
• "increases heart rate and blood pressure" is a function of the sympathetic division of the autonomic nervous system.
• "relays information to and from internal organs" is done by the autonomic nervous system (for internal organs' involuntary functions).
• "stimulates digestion" is a function of the parasympathetic division of the autonomic nervous system.
• "regulates voluntary activities" is correct as the somatic nervous system controls voluntary muscle movements (like moving limbs).
• "relays information to and from skin and skeletal muscles" is correct as it carries sensory info from skin/muscles and motor commands to skeletal muscles.

Answer:

• regulates voluntary activities
• relays information to and from skin and skeletal muscles