Pre-Lab Questions Select the correct answer for each of the following questions:
Muscles of mastication are all inserted on the
a. mandible.
b. maxilla
c. tongue.
d. teeth.
Introduction :
The oval cavity present in the skull is called the mouth. The mouth consists of various parts like lips, jaws, teeth, and vestibule. The teeth are located in the socket present in the jaw. The teeth are involved in splitting food into smaller parts. The zone between the lips, cheeks, and teeth is called the vestibule.
Answer to Problem 1PL
Correct answer :
The correct answer is option (a) mandible.
Explanation of Solution
Explanation/justification for the correct answer :
Option (a) mandible. The mastication muscles originated from the skull that ends in the mandibles. The mandible is present in the lower jaw. At the time of contraction, jaw movements are allowed by these mastication muscles. The muscles involved in the mastication are inserted in the mandible. So, the correct answer is an option (a).
Explanation for incorrect answer :
Option (b) maxilla. The maxilla is the fixed bone that is present in the upper jaw. The two maxillary bones fused together to form the fixed maxilla. The front of the mouth consists of the hard palate in the upper jaw. So, this is an incorrect option.
Option (c) tongue. The muscular organ of the mouth called tongue involves in the process of mastication and swallowing. It plays an important role in the digestive system and contains gustatory receptors. So, this is an incorrect answer.
Option (d) teeth. The layers pulp, dentin, cementum, and enamel together form the teeth. Teeth are not muscular in nature. The teeth do not contain muscles for mastication. So, this is an incorrect answer.
Want to see more full solutions like this?
Chapter 22 Solutions
Laboratory Manual For Human Anatomy & Physiology
Additional Science Textbook Solutions
Loose Leaf For Integrated Principles Of Zoology
Seeley's Anatomy & Physiology
Microbiology: Principles and Explorations
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
- What is denoted by D? Question 4 Select one: i. foramen magnum ii. vertebral foramen iii. intervertebral foramen iv. transverse foramenarrow_forwardAction at the wrist joint is taking place in which plane? must watch video clip to answer https://www.youtube.com/watch?v=PvoauGkB31M a. Sagittal b. Transverse c. Frontal d. Obliquearrow_forwardQUESTION 15 Identify the origin of the highlighted muscle: A. Head and shaft of Fibula and Posterior surface of Tibia B. Lateral condyle of Tibia C. Pubis D. Lateral condyle of Tibia E. Ischial Tuberosity F. Lateral and Medial Condyles of Femur G. Anterior Inferior Iliac spinearrow_forward
- Mehmet was operated for direct inguinal hernia and Mesh was placed. after the surgery the abdminal layers from anterior to posterior are composed of in this patient after Mesh placement. 1. Fascia Tranversalis 2. Campers Fascia 3. Parietal Peitoneum 4. Mesh 5. External Oblique Aponerosis 6. Conjoint tendon 7. Spermatic Cord 8. Skin 9. Scarpa Fascia 8, 2, 9, 5, 7, 6, 1, 4,3 O 8, 9, 2, 5, 7, 4, 6, 1, 3 O 8, 2, 9, 5, 4, 7, 6, 1, 3 O 8, 2, 9, 5, 7, 6, 4, 1, 3 8, 2, 9, 5, 7, 4, 6, 1, 3 Back Next Paarrow_forwardPlease answer the three given questions. In numbers 1 and 2, refer to the pyramid that I attached below. Thank you.arrow_forwardDrag the terms from the left to identify the structures in the figure at the right. Drag the appropriate labels to their respective targets. Pectoralis minor Internal oblique Rectus abdominis Internal intercostals Serratus anterior Sternocleidomastoid External intercostals Reset Helparrow_forward
- The scapulae and clavicles together form the_______________________arrow_forwardThe body of a 19-year-old male is found on the roadway, alongside a vehicle that hit a tree. Three of the four doors of the vehicle have popped open. 2 other bodies are also found at the scene. On examination at the Morgue, the decedent above referenced is found to have minor abrasions of his chin and right cheek, and his jaw appears slightly distorted. However, upon palpation of the mandible, it is found to be grossly unstable, with subsequent X-Ray demonstrating 19 distinct fractures of the jaw between the Right and Left Mandibular Rami. At autopsy, his trachea is found to be filled with vomitus. No other injuries are demonstrable, although there is some fluid residue found in the stomach, smelling of alcohol. a) Given these findings, what are the possible causes of death? Which do you believe to be the most likely cause of death? b) Is it obvious from the injury pattern where the decedent was sitting in the vehicle? If not obvious, where do you believe it likely the decedent was…arrow_forwardI need the answer as soon as possiblearrow_forward
- The _______________________ pterygoid can protrude the jaw, pull the jaw sideways, and open the mouth.arrow_forwardIdentify the muscles and/or actions in the following questions.1. Identify the abdominal muscles you use when you do the dance called the “twist.”2. Give the action of each muscle listed in question 1.3. Identify the muscles used to move the upper limb when you do jumping jacks.4. Give the action of each muscle listed in question 3.5. Identify the muscles that move the lower limb when you do jumping jacks.6. Give the action of each muscle listed in question 5.7. Identify the muscles used to bend the trunk when you touch your toes.8. Give the action of each muscle listed in question 7.9. Identify the upper limb muscles used to play the cymbals in a band.10. Give the action of each muscle listed in question 9.arrow_forwardIdentify the muscles and/or actions in the following questions.1. Identify the abdomínal muscles you use when you do the dance called the "twist." 2. Give the action of each muscle listed in question 1. 3. Identify the muscles used to move the upper limb when you do jumping jacks. 4. Give the action of each muscle listed in question 3. 5. Identify the muscles that move the lower limb when you do jumping jacks. 6. Give the action of each muscle listed in question 5. 7. Identify the muscles used to bend the trunk when you touch your toes. 8. Give the action of each muscle listed in question 7. 9. Identify the upper limb muscles used to play the cymbals in a band. 10. Give the action of each muscle listed in question 9. 77arrow_forward
- Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage