HFN - Small Group Learning 3 - Dissection Guide PDF.pd
-
Upload
clare-garcia -
Category
Documents
-
view
216 -
download
0
Transcript of HFN - Small Group Learning 3 - Dissection Guide PDF.pd
-
8/6/2019 HFN - Small Group Learning 3 - Dissection Guide PDF.pd
1/5
University of the Philippines ManilaCollege of Allied Medical Professions
OTPT 102: Anatomy for OT and PT studentsAcademic Year 2011-2012
HEAD, FACE, and NECKSmall Group Learning 3: DissectionLaboratory Guide
Learning Objective:- Identify the muscles of the head, face, and neck on a cadaveric model.
Recommended Study Time:2 hours
Learning Materials Needed: - Atlas of human anatomy
- Human cadaver - Dissection kit- Anatomy book
References:Netter, F.H. (2010). Atlas of human anatomy (5th ed.). Philadelphia: Elsevier.Snell, R.S. (2004). Clinical anatomy (7th ed.). Philadelphia: Lippincott Williams & Wilkins.No author (2002). Prosection manual . Retrieved June 22, 2011, from
http://webanatomy.net/atlas/447manual.htm#DISSECTION OF THE MUSCLES OF THE HEAD, NECKAND BACK
-
8/6/2019 HFN - Small Group Learning 3 - Dissection Guide PDF.pd
2/5
All rights reserved. Copyright by ECRJ 2011. Use exclusively for OTPT 102: Applied Anatomy students. Approval and consent from Ernesto C. Rivera Jr., PTRP and CAMP
University of the Philippines-Manila required before use for other purposes. ([email protected]). Page 2
Instruction I: Prior to your dissection schedule, fill out the table below with the origin, insertion, action, and innervation of the followingmuscles of the head, face, and neck.
Muscle Origin Insertion Action Innervation
Frontalis
Corrugator supercilli
Orbicularis oculi
Levator palpabraesuperioris
Procerus
Orbicularis oris
Buccinator
Levator anguli oris
Levator labii superioris
Levator labii superiorisalaeque nasi
Zygomaticus major
Depressor anguli oris
Depressor labii inferioris
-
8/6/2019 HFN - Small Group Learning 3 - Dissection Guide PDF.pd
3/5
All rights reserved. Copyright by ECRJ 2011. Use exclusively for OTPT 102: Applied Anatomy students. Approval and consent from Ernesto C. Rivera Jr., PTRP and CAMP
University of the Philippines-Manila required before use for other purposes. ([email protected]). Page 3
Muscle Origin Insertion Action Innervation
MentalisPlatysma
Masseter
Temporalis
Sternocleidomastoid
Digastric - anterior belly
Digastric posterior belly
Sternohyoid
Omohyoid - superior belly
-
8/6/2019 HFN - Small Group Learning 3 - Dissection Guide PDF.pd
4/5
All rights reserved. Copyright by ECRJ 2011. Use exclusively for OTPT 102: Applied Anatomy students. Approval and consent from Ernesto C. Rivera Jr., PTRP and CAMP
University of the Philippines-Manila required before use for other purposes. ([email protected]). Page 4
Instruction II: For the skinning and dissection part, follow the procedures below. Once done with skinning, identify only the musclesenumerated above. To easily differentiate one muscle from the other, familiarize yourselves with the fiber orientation of each muscle.
1. To expose the masseter and temporalis muscle, make a skin incisionstarting at the chin, following around the mouth and up the side of thenose (Figure 6.1). Stop the incision at the top of the cheekbone,approximately a half an inch from the eye.
2. Move the incision vertically across the cheekbone ( inch under the eye)to the end of the eye. Continue the incision horizontally close to the eyeand stop about an inch above the temple. Also carefully remove skin fromaround one eye and around the mouth.
3. Now take the cut vertically from above the temple even with the anterior
part of the ear ( do not go down toward the ear but only even with it). Youmay wish to "round" this entire cut to better expose the origin of thetemporalis (Figure 6.2).
4. Continue the incision from the chin to the posterior part of the ear following the angle of the jawbone.
5. Keeping the skin as one flap, retract the flap slowly, separating the skin from the fat until the flap can be pulled back over the ear.
-
8/6/2019 HFN - Small Group Learning 3 - Dissection Guide PDF.pd
5/5
All rights reserved. Copyright by ECRJ 2011. Use exclusively for OTPT 102: Applied Anatomy students. Approval and consent from Ernesto C. Rivera Jr., PTRP and CAMP
University of the Philippines-Manila required before use for other purposes. ([email protected]). Page 5
6. Attach the flap at the points above and below the ear (two inches from the top of ear and one inch from the bottom). Thistype of incision allows for easier closure over the face and better protection from drying out.
Note: Difficulty will be encountered in reflecting only the skin from the face because the superficial muscles of the face insert intothe skin. You may shave off these attachments.
7. Locate the temporalis which is below several layers of subcutaneous fascia and covers the side of the head.
8. Locate the masseter which is attached to the skull and jaw and is embedded in the fat of the cheek. Be careful in removingthe fat because the parotid gland and duct lie over the masseter and need to be left intact for later identification. Once thefat has been removed, the masseter should be relatively easy to see.