Sunday, 27 July 2014

Face and Muscle of Facial Expression

by Amanda Hong



Face & Muscles of Facial Expression
No.
Statement
T/F
1.
Skin is very vascular.

2.
Wounds of the skin to not bleed profusely and heals slowly.

3.
Skin of the face is rich in sebaceous glands but not sweat glands.

4.
Sweat glands cause acne.

5.
Laxity of greater part of skin facilitates rapid spread of oedema.

6.
Renal oedema appears first in other body parts before spreading to eyelids and face.

7.
Laxity of skin to underlying cartilage causes boils in ear & nose to be painful.

8.
Facial skin is elastic & thick because facial muscles are inserted into it.

9.
Wounds of the face do not tend to gape.

10.
Superficial fascia contains facial muscles, vessels & nerves, and fats.

11.
Fats are absent in the eyelids.

12.
Buccal pads are well developed in the cheeks.

13.
Buccal pads are well developed in adults.

14.
Deep fascia is present in the face.

15.
Parotid fascia covers the parotid gland over buccinators where in forms buccopharyngeal fascia.

16.
Zygomaticus major is in action when contempt.

17.
Zygomaticus minor is in action when smiling & laughing.

18.
During sadness, only depressor labii superioris is involved.

19.
When in grief, levator anguli oris is involved.

20.
Both buccinator and orbicularis oris is involved during whistling.

21.
Platysma is involved in the facial expressions horror and terror only.

22.
Motor nerve of the face is facial nerve.

23.
Facial nerve divides into 4 branches in the face.

24.
All the branches of the facial nerve arise from the parotid gland.

25.
Temporal branch of facial nerve supplies frontalis, auricular muscles and orbicularis oris.

26.
Orbicularis oculi is supplied by zygomatic branch of facial nerve.

27.
Buccal branch of facial nerve only supplies muscles of the upper lip.

28.
Marginal mandibular branch of facial nerve supplies muscles of the lower lip.

29.
Cervical branch of facial nerve supplies the platysma and muscles of the cheek.

30.
Arteries of the face include facial artery and transverse facial artery.

31.
Small branches of ophthalmic artery, maxillary artery and superficial temporal artery accompany cutaneous nerves.

32.
Facial artery is the chief artery of the face.

33.
Facial artery is a branch of the internal carotid artery.

34.
Facial artery enters the face by winding around the base of the mandible.

35.
Facial artery pierces the deep cervical fascia at anteroinferior angle of masseter.

36.
Facial artery is known as the anesthetist’s artery because it can be palpated.

37.
Terminates by supplying the lacrimal duct by anastomosing with dorsal nasal branch of ophthalmic artery.

38.
Facial artery is not tortuous as to prevent the unduly stretching during movements of mandible, cheeks and lips.

39.
Posterior branches of the facial artery give rise to inferior, superior labial and lateral nasal branches of arteries.

40.
Transverse facial artery is a branch of superficial temporal artery.

41.
Transverse facial artery is accompanied by lower basal branch of facial nerve.

42.
Transverse facial artery supplies parotid gland and its duct, masseter & overlying skin and ends by anastomosing with neighboring arteries.

43.
Veins of the face accompany arteries & drains into common facial and retromammary veins.

44.
Veins of each side of the vein form a Y-shaped arrangement.

45.
Facial vein is the largest vein of the face with no valves

46.
Dangerous area of the face is due to facial vein communicating with cavernous sinus through emissary arteries.

47.
Upper territory of the face drains into preauricular parotid nodes.

48.
Middle territory of the face drains into submandibular nodes.

49.
Lower territory of the face includes lateral sides of the lip and chin.

50.
Upper territory of the face includes greater part of forehead, conjunctiva and lateral part of the cheeks only.

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