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Mink Dissection of Muscles - highschoolbiologywiki Flipbook PDF
Mink Dissection of Muscles Part Three: Muscles that Move the Torso (Waist and Chest) Action Prime Mover Text Page ... Rh
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Advanced Biology
Human Anatomy
Mink Dissection of Muscles In this portion of our study of the Mink, we will be focusing on the muscular system. These instructions tell you what muscles you are to identify and provide instructions on information you are expected to learn about those muscles. Additionally, these instructions will reference passages in the dissection manual that explain how to locate the muscles listed here. The word “dissect’ means to separate; the blunt probe will be your most useful tool with occasional use of scissors. When dissecting, or separating muscles, you are tearing the deep fascia that lies between muscles. As your feel for separating muscles improves, you will develop a sense of when you are applying too much pressure and are likely tearing into a muscle. If you see individual, torn, muscle fibers (fascicles), that is an indication you have broken through the perimysium that surrounds each muscle; this is obviously undesirable. You will quickly learn there is a good deal of variation in the dissection specimens. The muscles appear different colors, individual animals have varying amounts of superficial fascia (adipose/fat), the muscles differ in size and exact placement. It is highly recommended you study several different specimens to get a good sense of this variation. As your instructor, I will will provide as much support as I am able. You must do a good deal of the work on your own; it is not possible for me to complete the separation and identification of every muscle, on every specimen, for each team. I again stress the combined use of these instructions and the referenced passages in the provided dissection manuals to help you learn as much as possible on your own. You will be much more successful in learning the muscles if you utilize me to confirm your identifications and help you with only the most difficult to find muscles. There are several techniques I have found help students learn the muscles more easily and help them use that knowledge to develop an understanding of the function of the human body. Learn the muscles in antagonistic pairs; this step was begun by having you complete a table of antagonistic muscle pairs for each major body movement. Also learn the muscles based on their function in moving specific body parts. Find the origin and insertion of each muscle you are studying; you will be more confident of your identifications if you can follow the muscle to a correct origin and insertion as described in the dissection manual. Use the diagrams you are to complete as a tool to keep track of those muscles you have successfully identified, don’t simply label the diagrams at the start or end of the lab. Palpate, feel, the muscles on your own body, this reinforces the connection to human anatomy, helps you learn where the muscles are, and can be used as a study technique outside of the lab.
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Part One: Superficial Muscles that Move the Arm and Shoulder Action
Prime Mover
Text Page Reference for Origin and Insertion
Flex Shoulder
Pectoralis major
312
Page Reference for the dissection manual “Photo Manual Dissection Guide” 21 - 22
Page Reference for the dissection manual “Human Anatomy and Physiology”
Extend Shoulder Abduct Arm
Latissimus dorsi
312
22 - 24
Deltoid
313
38 - 40
143 -144
Adduct Arm
Pectoralis major Latissimus dorsi
312 312
21 - 22 22 – 24
141
Flex Arm
Biceps brachii
315
52 - 53
147 -148
Extend Arm
Triceps brachii
315
29 -30
146 -147
Flex Wrist
Flexor carpi radialis Flexor carpi ulnaris Flexor digitorum superficialis
316 317 317
31 - 32
148
Extend Wrist
Extensor digitorum
318
41 - 42
147
Flex Fingers
Flexor digitorum(s)
317
31 - 32
148
Extend Fingers
Extensor digitorum(s)
318
41 - 42
147
141
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Lateral Shoulder Deltoid
s tis La im us rs do i
Triceps brachii
Pectoantebrachialis Cut and Reflected Head (Anterior end)
Biceps brachii
Pe
cto rali s
ma jo
r
Triceps brachii
Medial Upper Arm
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Head (Anterior end)
Extensor digitorums
Lateral Lower Arm
Medial Lower Arm Flexor carpi radialis
Palm aris long us
Flexor carpi ulnaris Lateral side of lower arm
Flexor digitorum
Head (Anterior end)
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Ventral Chest Head (Anterior end)
Pectoralis m
Pectoante brachialis
jor a m is l a Pector
ajor
Dorsolateral Back Head (Anterior end)
Latissimus dorsi
Pectoralis major
External obliques
Here is the triceps peeking through ☺
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Part Two: Muscles that Move the Leg Action
Prime Mover
Text Page Reference for Origin and Insertion
Page Reference for the dissection manual “Photo Manual Dissection Guide” 33 - 35
Page Reference for the dissection manual “Human Anatomy and Physiology” 150, 152
Flex Leg
Iliopsoas
322
Extend Leg
Gluteus maximus Biceps femoris
325 327
43 - 44
149 - 150
Abduct Leg
Gluteus medius
325
43 - 44
149 - 150
Adduct Leg
Adductor Muscles
324
33 - 35
150, 152
Flex Leg
Biceps femoris Semitendinosus Semimembranosus
327 327 327
43 – 44
149 - 150
Extend Leg
Rectus femoris Vastus Muscles
324 324
56 – 58 66 - 67
150, 152
Dorsiflexion
Tibialis anterior
328
33 - 35
151, 153
Gastrocnemius Soleus
331 331
33 - 35
151, 153
(Page 230)
Flex Toes
Flexor digitorum longus
331
33 - 35
153
Extend Toes
Extensor digitorum longus
328
66 - 67
(Page 230)
Plantar Flexion
151
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Gluteus medius
Gluteus maximus
Head (Anterior end)
Biceps femoris
Vastus lateralis
DorsoLateral Upper Hind Leg Semitendinosis
Bicep femoris cut & reflected Head (Anterior end)
Vastus lateralis
Semimembranosis
Lateral Deep Upper Leg
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Sartorius cut & reflected
Vastus medialis
Rectus femoris
Gracilis cut & reflected Head
Gracilis cut & reflected
(Anterior end)
Medial Deep Upper Leg
Medial Deep Upper Leg Adductor femoris
Semitendinosis
Adductor longus
Sartorius cut & reflected
Qu ad rac ep sm usc les
Gracilis cut & reflected
Head (Anterior end)
Semimembranosis
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Gastrocnemius
Flexor digitorum longus
Head (Anterior end)
Knee
Tibialis anterior
Lateral Lower Leg
Medial Lower Leg
Tibialis anterior Knee Head (Anterior end)
Extensor digitorum longus
Soleus
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Part Three: Muscles that Move the Torso (Waist and Chest) Action
Prime Mover
Text Page Reference for Origin and Insertion
Page Reference for the dissection manual “Photo Manual Dissection Guide” 22 - 24
Bend Forward (Flex)
Rectus abdominis External oblique Internal oblique
306 306 306
Straighten or Bend Backward (Extend) Rotate at Waist
Erector spinae muscles
302
64 - 65
(See Dorsal Neck Photo)
External oblique Internal oblique
306 306
22 - 24
Inhale
External intercostals
304
50 - 51
Exhale
Internal intercostals
304
50 - 51
Elevate Shoulders Square Shoulders
Levator scapulae
311
Rhomboids
311
Page Reference for the dissection manual “Human Anatomy and Physiology” 142 - 143
142 - 143
143 59 - 60
145 - 146
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Dorsal Back Erector spinae Backbone
Backbone
Backbone
Backbone
Head (Anterior end)
Ventral Abdomen Internal obliques Rect u
External obliques (reflected)
s ab dom inus Head (Anterior end)
Advanced Biology
Human Anatomy
Mink Dissection of Muscles Part Four: Muscles that Move the Neck and Face Action
Prime Mover
Text Page Reference for Origin and Insertion
Page Reference for the dissection manual “Photo Manual Dissection Guide” 25
Page Reference for the dissection manual “Human Anatomy and Physiology”
Bend Neck Forward (Flex) Straighten or Bend Neck Backward (Extend) Smile
Sternocleidomastoid
300
Semispinalis & Longissimus
302
Zygomaticus
294
115
Frown
Includes Depressor anguli oris Frontalis
295
115
Occipitalis
294
Masseter
296
27
Digastric
298
25
(opposed to smile)
Raise Eyebrows “Scrunch” Eyebrows Close Mouth (Flex) Open Mouth (Extend)
140, 117
294
141, 117 140, 119
Advanced Biology
Human Anatomy
Mink Dissection of Muscles
Ventral Deep Neck Platysma cut & reflected
Sterno(cleido) mastoid(eus)
ea Trach
Head (Anterior end)
Sternohyoid
Dorsal Deep Neck Head (Anterior end)
inalis & p is m e S imus Longiss
Levator scapulae Trapezius cut & reflected