What is produced by enteric nerves for muscle contraction something.. A) Nitric oxide B) Histamine C) Norepinephrine D) Substance P

The enteric nervous system, which is a part of the autonomic nervous system and is found in the gastrointestinal tract, produces several neurotransmitters for various functions including muscle contraction.

A) Nitric oxide: This is a neurotransmitter that is produced by the enteric nerves. It is involved in the relaxation of smooth muscle, which is a type of muscle found in the gut.

B) Histamine: This is not produced by the enteric nerves. It is a compound that is involved in local immune responses and also acts as a neurotransmitter.

C) Norepinephrine: This is a neurotransmitter that is produced by the sympathetic nervous system, not the enteric nervous system. It is involved in the fight or flight response.

D) Substance P: This is a neuropeptide that is produced by the enteric nerves. It is involved in pain perception and also plays a role in the contraction of smooth muscle in the gut.

So, the enteric nerves produce both Nitric oxide and Substance P for muscle contraction and relaxation in the gut.

The enteric nervous system, which is part of the autonomic nervous system and is found in the gastrointestinal tract, produces several neurotransmitters for muscle contraction. These include:

A) Nitric oxide: This is a neurotransmitter that is involved in the relaxation of smooth muscle, which is necessary for processes such as vasodilation.

B) Histamine: This is not typically involved in muscle contraction. It is more commonly associated with immune responses.

C) Norepinephrine: This neurotransmitter is involved in the contraction of smooth muscle in many parts of the body, but it is not produced by the enteric nervous system.

D) Substance P: This is a neuropeptide that is produced by the enteric nervous system and is involved in the contraction of smooth muscle in the gastrointestinal tract.

So, the answer to your question is D) Substance P.

The enteric nervous system, which is a part of the autonomic nervous system and is found in the gastrointestinal tract, produces several neurotransmitters for muscle contraction. These include:

A) Nitric oxide: This is a neurotransmitter that is involved in the relaxation of smooth muscle, which can help facilitate the movement of food through the digestive tract.

B) Histamine: This is not typically involved in muscle contraction. It is more commonly associated with immune responses.

C) Norepinephrine: This is a neurotransmitter that can cause contraction of smooth muscle in some parts of the gastrointestinal tract, but it is not produced by the enteric nerves.

D) Substance P: This is a neuropeptide that is produced by the enteric nerves and can cause contraction of smooth muscle in the gastrointestinal tract.

So, the answer to your question is D) Substance P.