biology : class11 Enteric Nervous System : CNS, PNS, Visceral Nervous System : Human Nervous System MCQ Questions and Answers
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Enteric Nervous System
MCQ questions and answers.
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MCQ Questions
1. What is the main location of the enteric nervous system?
A.
The walls of the gastrointestinal tract
B.
The walls of the lungs
C.
The muscles of the limbs
D.
The bones of the vertebral column
Correct Answer:
The walls of the gastrointestinal tract
Explanation:
The enteric nervous system is a network of neurons located within the walls of the gastrointestinal tract.
2. Which function is mainly controlled by the enteric nervous system?
A.
Digestion and movement of food through the gut
B.
Movement of the arms and legs
C.
Formation of red blood cells
D.
Hearing sounds
Correct Answer:
Digestion and movement of food through the gut
Explanation:
The enteric nervous system regulates important digestive activities, including gut movement and secretion.
3. The enteric nervous system is often called the nervous system of the:
A.
Gut
B.
Skin
C.
Kidney
D.
Heart
Correct Answer:
Gut
Explanation:
The enteric nervous system is the intrinsic neural network of the gastrointestinal tract, or gut.
4. Which enteric plexus mainly helps control the movement of the gastrointestinal tract?
A.
Myenteric plexus
B.
Optic plexus
C.
Cardiac plexus
D.
Brachial plexus
Correct Answer:
Myenteric plexus
Explanation:
The myenteric plexus is an enteric nerve network that mainly regulates the muscular movements of the gut.
5. Which enteric plexus is mainly associated with secretion and local blood flow in the digestive tract?
A.
Submucosal plexus
B.
Cervical plexus
C.
Lumbar plexus
D.
Sacral plexus
Correct Answer:
Submucosal plexus
Explanation:
The submucosal plexus helps regulate glandular secretion and local blood flow in the wall of the gastrointestinal tract.
6. What type of movement of food can the enteric nervous system help coordinate?
A.
Peristalsis
B.
Blinking
C.
Walking
D.
Breathing through the nose
Correct Answer:
Peristalsis
Explanation:
The enteric nervous system coordinates peristalsis, the wave-like muscular movement that pushes food through the digestive tract.
7. The enteric nervous system can carry out many digestive functions:
A.
Independently of the brain and spinal cord
B.
Only when the eyes are stimulated
C.
Only during sleep
D.
Only when skeletal muscles contract
Correct Answer:
Independently of the brain and spinal cord
Explanation:
The enteric nervous system can control many local digestive activities independently, although it can also be influenced by the autonomic nervous system.
8. What does the enteric nervous system primarily coordinate within the gastrointestinal tract?
A.
Muscle activity and glandular secretion
B.
Bone growth and joint movement
C.
Vision and pupil color
D.
Hearing and balance
Correct Answer:
Muscle activity and glandular secretion
Explanation:
Enteric neurons coordinate the contractions of gut muscles and the secretion of digestive substances.
9. Where are many neurons and ganglia of the enteric nervous system found?
A.
In the layers of the gastrointestinal tract wall
B.
Inside the skull bones
C.
Inside the long bones of the legs
D.
In the outer layer of the skin
Correct Answer:
In the layers of the gastrointestinal tract wall
Explanation:
The enteric nervous system contains neurons and ganglia arranged within different layers of the gastrointestinal tract wall.
10. Which statement correctly describes the enteric nervous system?
A.
It is an intrinsic nerve network that regulates digestive activities
B.
It controls only voluntary movements of the limbs
C.
It carries visual information from the eyes
D.
It produces hormones from the thyroid gland
Correct Answer:
It is an intrinsic nerve network that regulates digestive activities
Explanation:
The enteric nervous system is an intrinsic network in the gut that regulates digestion, including movement and secretion.
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