Mature swallow pattern is characterized by all of the following, except:
Correct Answer: Relaxation of the elevator muscles of mandible
Description: Humans show 2 types of swallow patterns:
Infantile and neonates swallow
Mature/adult swallow.
Infantile swallow is characterized by:
Active contractions of the lip muscles.
Tongue is placed between the gum pads and tongue tip is brought forward into contact with the lower lip.
Little posterior tongue activity /pharyngeal muscle activity.
Tongue-to-lower lip posture adopted by infants at rest.
Contraction of lips and facial muscles helps to stabilize the mandible.
Vigorous mandibular thrust.
Physiologic transition of swallow begins during the 1st year of life and continues for several years. Mature swallow is seen usually by 4-5 years. Maturation of swallow pattern occurs with the addition of semisolid and solid food to the diet. Increasing activation of the elevator muscles of mandible is seen. When sucking activity stops, a continued transition of swallow leads to acquisition of adult pattern of swallow.
This swallow is characterized by:
Cessation of lip activity, i.e, lips relaxed.
Placement of tongue tip against the palate and behind upper incisors.
Posterior teeth into occlusion during swallow.
Downward and forward mandibular growth increases intraoral volume and vertical growth of the alveolar process changes tongue posture.
Mandible stabilized by contraction of muscles of mastication.
Ref: Textbook of orthodontics 2nd ed Gurkeerat Singh page no 595,596
Category:
Dental
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now