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Infratemp and temp
INFRATEMPORAL AND TE
| Term | Definition |
|---|---|
| Temporal and Infratemporal Region | contains the muscles of mastication |
| speech and mastication | The TMJ allow this movements |
| w/c is the only ganglion w/ 4 roots | OTIC GANGLION |
| MAXILLARY ARTERY | BLOOD SUPPLY OF INFRATEMPORAL AND TEMPORAL |
| Temporal Fossa | bounded by the sup temporal line and the zygomatic arc |
| Temporal Fossa | communicates w/ the infratemporal fossa |
| Infratemporal Fossa | Lies below the skull behind the body of the maxilla and lateral to medial pterygoid communicates w/ the pterygopalatine fossa |
| Pterygopalatine Fossa | a small space w/c lies between the body of the maxilla and the root of the pterygoid process lateral to the perpendicular plate of the palatine bone |
| 1. LATERAL PTERYGOID 2. MASSETER 3. TEMPORALIS 4. MEDIAL PTERYGOIDTemporal Fascia | Muscles of Mastication (4) |
| Temporal Fascia | is a thick aponeurotic sheet that roofs over the temporal fossa |
| Temporal Fascia | overs the temporalis muscle |
| a. external and middle ears b. auditory tube c. upper and lower jaws d. muscles of temporal and infratemporal regions e. nose and paranasal sinuses f. palate g. the root of the pharynx h. duramater h. duramater | THE MAXILLARY ARTERY SUPPLIES THESE STRUCTURES |
| First part – mandibular, . Second part – pterygoid, Third part – pterygopalatine | 3 PARTS OF MAXILLARY ARTERY |
| ensory, sympathetic, motor and secremotor | 4 ROOTS OF THE OTIC GANGLION |
| 2 heads lat pterygoid | Third part – pterygopalatine divison |
| DAM I AM Piss Drunk But Stupid Drunk I Prefer, Must Phone Alcoholics Anonymous | BRANCHES OF MAXILLARY ARTERY |
| Synovial Joint | Type of joint of TMJ |
| 1. fibrous capsule2. lateral ligament3. sphenomandibular ligament 4. stylomandibular ligamen | Ligaments of TMJ (4) |
| lateral or tm ligament | reinforces and strengthens the lateral part of the capsular ligament |
| STYLOMANDIBULAR LIGAMENT | separates the parotid and submandibular salivary gland |
| Articular Disc | oval fibrous plate that divides the joint into upper and lower compartments |
| superficial temporal and maxillary arteries | blood supply (2) |
| auriculotemporal Nerve and masseteric nerve | Nerve Supply: (2 |
| Forward movement – protraction of mandibleSlight opening – depression of mandible\n Chewing movements – involve side to side movement of the mandible | Movements (3) |
| lateral pterygoid | Depression |
| massetertemporalismedial pterygoid | Elevation: |
| ateral pterygoid and medial pterygoid | Protrusion: |
| lateral pterygoid | Lateral or side to side movements |
| 118–142lbs (53.6–64.4kgs) | Biting Force (male) |
| female: 79–99 lbs (35.8 – 44.9 kgs) | Biting Force female |
| Trigeminal ganglion (middle cranial fossa) -> foramen ovale -> infratemporal fossa | COURSE |
| a. meningeal branch b. nerve to medial pterygoid | BRANCHES from the main trunk |
| a. buccal nerve ( sensory ) b. motor branches: masseteric deep temporal nerve nerve to lateral pterygoid | From the anterior trunk |
| a. auriculotemporal b. lingual c. inferior alveolar nerve | From the posterior trunk |
Created by:
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