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NWHSU Mash GA1Q4 tmj

NWHSU Mash GA1Q4 TMJ and misc

QuestionAnswer
Describe the basic structure of the temporomandibular joint. (BE DETAILED AND COMPLETE!) The mandibular fossa, and mandibular chondyle are both covered w/ fibrocartilage. There is fibrocartilagenous disk which separates the articular capsule into an upper and lower compartment. The joint is considered a hinge, and a plane joint
Discuss the movements of the structural components of the TM Joint during opening of the mouth. (NO MUSCLES) Also Worded as: Discuss the specific movements of the articular disk and mandibular condyle? Protraction: mandibular condyle & articular disc move forward until the articular tubercle (upper compartment); Depression: mandibular condyle roatates under the articular disc (lower compartment)
Give the SPECIFIC named areas of mandibular attachments of the: a. lateral ligament; b. sphenomandibular ligament a. lateral ligament -lateral neck of the mandibular condyle, b. lingula of the mandibular foramen
Give the SPECIFIC named areas of mandibular attachments of the: a. stylomandibular ligament; b. sphenomandibular ligament; c. lateral ligament a. from styloid process to the lower mandibular ramus; b. spine of sphenoid to the lingula of the mandible foramen; c. lateral ligament-lateral surface of neck of ramus of mandible
Name the ligaments responsible for reinforcing the temporomandibular joint? Lateral TM Ligament, Stylomandibular ligament, Sphenomandibular ligament
Of the 4 MAJOR muscle of mastication, which is/are capable of the following action(s)? Give name even if it provides only a slight contribution. A. elevate(s) the mandible B. depress(es) the mandible A. masseter, temporalis, medial pterygoid; b. lateral pterygoid
Of the 4 MAJOR muscles of mastication, name the muscle that PRIMARILY responsible for: a. protraction of the mandible; b. retraction of the mandible A. Lateral Pterygoid; B. Temporalis
The MAJOR action of the lateral pterygoid m. Protraction of the jaw/mandible
Upon OPENING the mouth, the patient's jaw involuntarily deviates to the left. This would predominately indicate a lack of function of the _______ muscle of the _______(right, left) side? Lateral Pterygoid; Left
Upon OPENING the mouth, the patient's jaw involuntarily deviates to the right. This would predominately indicate a lack of function of the _______ muscle of the _______(right, left) side? Lateral Pterygoid; Right
(A.) Draw a simple CROSS SECTION of the spinal cord with dorsal & ventral roots attached. Now draw in thhe components (cell bodies, fibers, etc) of a CROSSED EXTENSOR reflex arc. (B.) Does the reflex illustrate the principle of the common path? A. Draw on your own... B. Yes this illustrats the Principle of the Common Path
(A.) Draw a simple CROSS SECTION of the spinal cord with dorsal & ventral roots attached. Now draw in thhe components (cell bodies, fibers, etc) of a STRETCH reflex arc. (B.) What is the stimulas which causes reflex? C. Is this contralateral reflex? A. Draw on your own... B. myotaxisor stretch on the muscle spindle fibers. C. no, its an ipsilateral reflex.
Created by: AnatomyMash
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