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27 Cards in this Set
- Front
- Back
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tmj stands for ...
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temporomandibular joint
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the bones of the tmj are:
1. 2. 3. |
condylar process of the mandible
mandibular fossa fo the temporal bone articular tubercle (eminence) of the temporal bone |
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the cartilage in the tmj is called ...
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articular disc
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identify the labeled structures:
1. 3. 9. |
1. condylar process
3. coronoid process 9. mental foramen |
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a. ligament
b. mandible c. temporal |
identify the labeled structures:
a. b. c. |
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what kind of joint is tmj?
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2 synovial joints
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name the 2 joints of tmj:
1. 2. |
superior
inferior |
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what is the action of the 2 tmj joints and what kind of joints are they:
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Superior:
a. Gliding joint (1) protrusion (2) retrusion Inferior: b. Hinge joint (1) Depression (opening) (2) Elevation (closing) |
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superior joint
inferior joint |
identify the labeled structures:
a. b. |
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identify the labeled structures:
a. b. c. is the mouth opened or closed? |
a. mandibular condyle
b. articular eminence c. disk closed |
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identify the labeled structures:
a. b. c. d. e. |
a. zygomatic arch
b. glenoid fossa c. external auditory meatus d. lateral pterygoid muscle e. tmj disk |
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arterial supply to tmj ...
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deep auricular artery
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motor supply to tmj ...
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none, it is a joint
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innervation to tmj ...
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auriculotemporal nerve (sensory)
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what nerves are vulnerable during surgery to the tmj?
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facial n. (VII) overlies TMJ
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list the muscles of mastication for closing the mouth:
1. 2. 3. 4. |
1. Temporalis
2. Masseter 3. Medial pterygoid 4. Lateral pterygoid |
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what are the functions of lateral pterygoid:
1. 2. |
1. protraction, depression, lateral movement
2. stabilize disc during retraction |
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identify the labeled structures:
a. b. c. d. e. f. g. h. |
a. temporalis
b. zygomatious c. buccinator d. orbicularis oris e. platysma f. masseter g. lateral pterygoid h. medial pterygoid |
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name the muscles of mastication that are involved in opening the mouth:
1. 2. 3. |
1. suprahyoid
2. infrahyoid 3. lateral pterygoid |
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the muscles of mastication involved with opening the mouth, move the jaw in ... planes
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all 3
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what is the blood supply to the muscles of mastication?
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Maxillary Artery
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identify the labeled structures of the maxillary artery:
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a. superficial temporal
b. middle meningeal c. post. deep temporal d. pterygoid e. ant. deep temporal f. sphenopalatine g. infraorbital h. external carotid i. inferior aveolar j. pterygoid k. masseteric l. buccinator m. post. sup. alveolar |
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V1 = sensory/motor/mixed
V2 = sensory/motor/mixed V3 = sensory/motor/mixed |
sensory
sensory mixed (supplies 4 mm. of mastication) |
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identify the labeled branches of trigeminal nerve:
a. b. c. d. e. f. g. identify the labeled muscle: h. |
a. mental
b. nerve to mylohyoid c. lingual d. inferior alveolar e. chorda tympani (cn7) f. deep temporal g. buccal nerve h. medial pterygoid |
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in trigeminal neuralgia, the pain radiates ... or ...
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over the mandible, around tmj, deep to external ear
up nostril, around inferior aspect of orbit |
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trigeminal neuralgia is caused by pressure on or interruption of the blood supply of the ...
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trigeminal ganglion
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a lesion of the motor root of the mandibular nerve may result in ... and deviation of the jaw on ... toward the injured nerve
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weakness of muscles of mastication
protrusion |
