Which pair is incorrectly matched? a. enteric nervous system: control functions in the digestive organs.b. somatic nervous system: controls movement of smooth muscle.c. autonomic nervous system: regulates cardiac muscle and glands.d. somatic nervous system: voluntary.

Answer is option B.

somatic nervous system: controls movement of smooth muscle.

Explanation:

Central nervous system (CNS) and the Peripheral nervous system (PNS):

The central nervous system (CNS) integrates and coordinates all the functions of the body. The main components of CNS are the brain and spinal cord.

The main components of the peripheral nervous system (PNS) are nerves. The brain and spinal cord (CNS) are connected to all other parts of the body through these nerves (PNS). The sensory or afferent nerves transmit information or sensations such as touch, pain, etc from the body to the CNS and motor or efferent nerves transmit signals from the CNS (such as stimulation of muscle contraction) to other body parts. The spinal nerves or mixed nerves serve both sensory and motor functions. The divisions of PNS include somatic, autonomic and enteric nervous systems.

The somatic nervous system controls voluntary body movements through skeletal muscles. It consists of sensory nerves, motor nerves and all other non-sensory nerves associated with skin and skeletal muscles.

The autonomic nervous system controls the involuntary body movements such as the movement of smooth muscles, the regulation of glands and the functions of various internal organs such as the heart rate, vasomotor activity, respiratory rate, pupillary response, reflex actions such as coughing, vomiting, sneezing, swallowing, etc. It is regulated by the hypothalamus and is divided into sympathetic and parasympathetic nervous systems.

The sympathetic nervous system regulates the body's involuntary actions, controls the fight-or-flight response activated during emergencies and helps to maintain homeostasis. The parasympathetic nervous system controls the activities that occur during the relaxed or rest state of the body such as salivation, urination, excretion, sexual arousal, etc.

The enteric or intrinsic nervous system functions involuntarily and consists of neurons that control the functions of the gastrointestinal system (digestive organs). It is an independent system and also known as the second brain.

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