Anatomy Flashcards
does the sympathetic or parasympathetic system regulate sweat production?
sympathetic due to release of acetylcholine.
what system regulates the sympathetic system
autonomic
what is the eponychium also known as?
the cuticle
what is the difference between the Onychodermal band and the hyponychium.
the hyponychium is the skin under the distal nail plate. Where hyponychium meets the nail bed junction that is the Onychodermal band.
how far above the orbital rim does the supratrochlear artery pierce into subQ skin
1.5 to 2.5 cm (a little less than an inch)
name the layers of the skin in order.
stratum corneum
stratum lucidum
granular layer
spinous layer
basal layer
papillary dermis
reticular dermis
SubQ fat
What are the borders of SMAS (superfical musculoaponeurotic system) The fiberous connection between the skin and the underlying muscles of the head and neck.
Frontalis Muscle superior
Platysma inferiorly
Temporalis lateral
Trapezius posteriorly
If the zygomatic and buccal nerve are damaged during surgery is the neurological defect usually permanent?
No, lots of cross innervation between the two.
Name 4 areas where you have free sebaceous glands
eyelids (meibomian glands inside tarsal plate)
lips & cheeks (fordyce spots)
Labia minora and prepuce (Tyson glands)
Nipple and Areolae (Montgomery tubercles)
an infraorbital block will numb what areas
Nasal sidewall
Ala
Cheek
upper lip lower eyelid
The Nasolabial crease is also known as?
melolabial crease
The Labiomndibular crease is found where?
comissure of the lip to the side of the mental crease.
What is another name for the Melolabial crease?
Nasolabial crease
Where is the Nasofacial sulcus located.
between the lateral side wall of the nose and the cheek.
What are the three sensory nerve fibers and what impluses do they tranmitt
c fibers (small) dull ache
alpha/delta fibers medium (pain and temp)
alpha/beta large (vibration and light pressure) last to numb up
