The somatic division of the PNS controls all of the following except theMultiple Choiceskin.quadriceps muscle.tendons.heart muscle.biceps muscles.

To answer your question about the somatic division of the peripheral nervous system (PNS), we need to understand the functions it controls.

Breakdown of the Problem

1. Identify the Somatic Division: The somatic division of the PNS controls voluntary movements and sensory information from the body to the central nervous system (CNS).
2. List Options: The choices given are skin, quadriceps muscle, tendons, heart muscle, and biceps muscles.
3. Determine the Controlled Elements: Identify which of these elements are under voluntary control by the somatic nervous system.

Relevant Concepts

• The somatic nervous system mainly controls skeletal muscles (like the biceps and quadriceps).
• Tendons, connecting muscles to bones, are components involved in this control.
• The skin acts as a sensory organ, transmitting signals to the CNS.
• The heart muscle is controlled by the autonomic nervous system and operates involuntarily.

Analysis and Detail

1. Skin: Sensory receptors in the skin send information to the CNS but are not directly controlled by the somatic division.
2. Quadriceps Muscle: This is a skeletal muscle, under somatic control.
3. Tendons: While they are connected to skeletal muscles, they are not controlled themselves, but they assist in transferring the force generated by somatic muscle contraction.
4. Heart Muscle: This is a cardiac muscle, which is involuntary and controlled by the autonomic nervous system.
5. Biceps Muscles: This is also a skeletal muscle, under somatic control.

Verify and Summarize

From the analysis above, the only option that is not controlled by the somatic division of the PNS is the heart muscle because it operates involuntarily.

Final Answer

The somatic division of the PNS controls all of the following except the heart muscle.