Posted by Ichneumia Rapidae on November 24, 2014 at 16:14:12:
1. The (zygomatic) bone contributes to the zygomatic process. FALSE, temporal
2. The temporal process of the (facial) bone contributes to the zygomatic process. FALSE, zygomatic
3. The mastoid process, middle ear, styloid process, (sphenoid spine), and foramen ovale are all parts of the temporal bone. FALSE, carotid canal. Sphenoid spine belongs to sphenoid bone.
4. The inferior temporal line marks attachment of the (epicranial aponeurosis). FALSE, temopralis muscle
5. The coronal suture is between the parietal bone and the (occipital) bone. FALSE, frontal
6. The pterion marks the internal location of the anterior branch of the middle meningeal artery. TRUE
7. The lambdoid suture is between the occipital bone and the parietal bone. TRUE
8. The superior temporal line is a site of attachment for the (epicranial aponeurosis.) FALSE, temporal fascia
9. The sagittal suture is between the parietal bones. TRUE
10. The anterior extent of the the sagittal suture is at bregma. TRUE
11. The parietal foramina provide a potential route for infections of the scalp to become intracranial. TRUE, via emissary veins?
12. The supraorbital nerve extends posteriorly to overlap with the distribution of the greater occipital nerve. TRUE
13. The external nasal nerve is from the ophthalmic division of the trigeminal nerve. TRUE
14. The infraorbital nerve is from the ophthalmic division of the trigeminal nerve. FALSE, maxillary (V2)
15. The cutaneous distribution of the mandibular division of the trigeminal nerve extends from the scalp to the mental process. TRUE
16. The mental nerve enters the face by way of the mental foramen. TRUE
17. The cutaneous distribution of the cervical plexus overlaps with the cutaneous distribution of the mandibular division of the trigeminal nerve. FALSE? Am I wrong in assuming that the mental branch off of V3 would overlap with transversus colli nerve distribution?
18. The parotid duct crosses the lateral surface of the masseter muscle at a location inferior to the transverse facial artery. TRUE
19. A base ball fastly approaching the orbit is apt to activate orbital part of obicularis oculi more so than the palpebral part of obicularis oculi. FALSE, i think the orbital part is more involved in tightly shutting the eye (voluntary) vs the palpebral part which is involved in more reflexive shutting of eye.
20. The buccal branch of the facial nerve nerve of supplies motor fibers (SVE) to the buccinator muscle and the buccal nerve supplies sensory fibers (GSA) to the oral mucosa of the buccinator muscle. TRUE, oral mucosa deep to buccinator. Mongooses are so picky.
21. Perturbation of the facial nerve proximal to the branching of the greater superficial nerve causes dry eye due directly by decreased secretion of the lacrimal gland and indirectly due to by paralysis of the orbicularis oculi. FALSE, I am assuming we are talking about the Greater (superficial) Petrosal Nerve. Paralysis of orbicularis oculi wouldnt happen unless the lesion were proximal to the geniculate ganglion or distal to CN:VII going through the internal acustic meatus. GVE parasympathetics (preganglionic) of the facial nerve headed to lacrimal gland do so by traveling through the lacerate foramen, through the pterygoid canal to the pterygopalatine (sphenopalatine?) ganglion where they synapse with their postganglionic nerve fibers and hitchhike on the second twin. Interruption at any point from the lacerate foramen to aforementioned distal path should only affect GVE fibers and not SVE fibers (temporal) to orbicularis oculi. TLDR: hahaha! I've probably goofed somewhere..Damn snakes.
22. Dural cranial sinuses communicate extracranially by way of emissary veins. TRUE
23. Parietal emissary veins extend into the loose areolar connective tissue (danger space) of the scalp. TRUE
24. A laceration of the scalp that penetrates the epicranial aponeurosis may introduce infection into the loose areolar tissue space. TRUE
25. An epidural hematoma accumulates blood between the cranial bone proper and the endosteal layer of dura mater. TRUE? I think its true, but what happened to the periosteum of the bone?
26. A subdural hematoma accumulates blood between the meningeal layer of the dura mater and the arachnoid mater. TRUE
27. Bregma marks the intersection of the coronal and sagittal sutures. TRUE
28. Lambda marks the intersection of the lambdoid and sagittal sutures. TRUE
29. The inferior temporal line is a site of attachment for the epicranial aponeurosis. FALSE, or is it?
30. The distribution of the supratrochlear nerve is medial to the distribution of the supraorbital nerve. TRUE
31. The distribution of the external nasal nerve accounts for the representation of the ophthalmic division of the trigeminal nerve that extends to include the bridge of the nose. TRUE, twin one invades twin two's midline presence! But thats ok, twin two managed to sneak into twin one's lateral orbit before sneaking out the sides, how stealthy.
32. The zygomaticotemporal and zygomaticofacial nerves pass through the orbit and are derived from the maxillary division of the trigeminal nerve. TRUE, like ninjas!
33. The buccal nerve, derived from the mandibular division of the trigeminal nerve, provides SVE fibers to the buccinator muscle. FALSE, buccal nerve of the third twin is GSA for oral mucosa, buccal branch of CN:VII is SVE.
34. The parotid duct pierces the buccinator muscle adjacent to the (lower) second molar. FALSE, upper.
35. The buccal branch of the facial nerve passes the (deep) surface of the masseter muscle and the buccal nerve passes the (superficial) surface of this muscle. FALSE, reverse.
36. The cervical branch of the facial nerve is the primary source of motor innervation to the platysma muscle. TRUE
37. The external carotid artery is located anterior to the internal carotid artery. TRUE
38. The temporalis muscle is attached at the inferior temporal line. TRUE
39. The facial artery crosses the mandible at the (posterior) free edge of the masseter muscle. FALSE, anterior
40. The "danger" space of the scalp is the loose areolar space. TRUE
41. The superior temporal lines define the lateral extent of the loose areolar space of the scalp. FALSE? "laterally [superficial fascia of the scalp] is prolonged into the temporal region, where it is looser in texture (BG:468)." Have I misinterpreted this excerpt from Gray's?
42. The superciliary ridges define the anterior extent of the loose areolar space of the scalp. TRUE? Moongooses are great trackers but they couldn't find anything to support or denounce this statement.
43. The superior nuchal line defines the posterior extent of the loose areolar space of the scalp. FALSE? "Posteriorly [superficial fascia of the scalp] is continuous with the superficial fascia of the back of the neck (BG: 468)." Misinterpretation, is Galea aponeurotica not part of the superficial fascia of the scalp? Galea aponeurotica attaches to the superior nuchal line via occipitalis belly, no?
44. Parietal emissary veins communicate between the loose areolar space of the scalp and the intracranial dural sinuses. TRUE
45. The pterion marks the location of the anterior branch of the middle meningeal artery. TRUE
46. Epidural hematomas accumulate between bone proper and the endosteal layer of dura mater. TRUE?
47. A scalp laceration that penetrates the epicranial aponeurosis may introduce an intracranial infection. TRUE
"... and he kept that garden as a mongoose should keep it, with tooth and jump and spring and bite, till never a cobra dared show its head inside the walls."
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