MUSCLE LIST 2011

DIRECTIONS:  ENJOY THIS DISSECTION

 

REMEMBER GLOVES!!!!      CLEAN YOUR STATION!!!!!!

 

1.  BEFORE you attempt to locate these muscles on the cat you must:

a) find the muscle on the human diagram, draw a line to it, and label it using a RED INK PEN.                                    

 Refer to the LAB BOOK at the lab table, your textbook, class reference books, and lab packet

            b)  Use a BLUE INK PEN to write the muscle’s ACTION next to the name. 

            c)  color the human muscle the color indicated on the list    

d)   READ in the cat muscle packet or coloring or book for the information given about this muscle’s location and action 

e)   Make a flashcard of each muscle (name or picture)  with action, insertion and origin

f)   ) NOW YOU ARE READY TO LOCATE THE MUSCLE ON THE CAT 

 

2.  This is YOUR DISSECTION, not mine, therefore, here are the RULES:

a) If you have done all you can to locate a particular muscle

DOING ALL YOU CAN INCLUDES:  

*LOOKED IT UP IN THE CAT PHOTOMANUAL,

* READ THE DESCRIPTION IN THE CAT MUSCLE PACKET,

*KNOW WHERE IT IS ON THE HUMAN AND WHAT IT DOES,

*CHECKED THE DEMO CATS FOR THE MUSCLE,

* ISOLATED THE MUSCLE and have your probe underneath it ), then you can ask for clarification…

b) BUT if I have to find the muscle for you, you’ll lose 1 point on the dissection grade, you’ll learn much more if you are independent.

c)  Muscles are all to be tied with White Yarn.  A colored piece of yarn will then be tied to the white for color coding.  See the Demo Cats

d) PARTICPATION IS MANDATORY! Absent? THEN DO YOUR OWN DISSECTION AT LUNCH. Notecards will be keeping track for you.

 

Muscles that move the lower arm

  1. brachialis-pink
  2. biceps brachii-dk blue
  3. triceps brachii (all three heads: lateral/long/medial- isolate and tie individually)-purple
  4. brachioradialis-red

 

Muscles that move the wrist or fingers

  1. palmaris longus-lavender
  2. flexor carpi radialis-light blue
  3. flexor carpi ulnaris-black
  4. extensor carpi ulnaris-goldenrod
  5. extensor carpi radialis longus-yellow
  6. extensor digitorum communis-gray
  7. extensor digitorum lateralis-tan
  8. pronator teres-orange

 

Muscles that move the hip ,thigh

  1. gluteus maximus-dk blue
  2. gluteus medius-lt.blue
  3. gluteus minimus (human diagrams only) – brown
  4. caudo femoralis (cat specimen only)-brown
  5. iliopsoas-yellow
  6. tensor fascia latae-red
  7. adductor longus-dk. Green
  8. adductor magnus (femoris in cat)-lt. green
  9. *sartorius-purple (also moves the leg)
  10. *gracilis-lavender (also moves the leg)

 

Muscles that move the leg, foot or toes

  1. biceps femoris (hamstring)-orange
  2. semimembranosus (hamstring)-tan
  3. semitendenosus (hamstraing)-aqua
  4. rectus femoris (quadriceps)-pink
  5. vastus medialis (quadriceps)-black
  6. vastus lateralis (quadriceps)-goldenrod
  7. vastus intermedius (quadriceps)-white
  8. peroneus longus-yellow
  9. extensor digitorum longus – lt. blue
  10. flexor digitorum longus-rose
  11. tibialis anterior-red
  12. gastrocnemius-gray
  13. soleus-dk.  Green

 

Muscles of Facial Expression  H= know on human/not on cat…we do not do these on the cat!

  1. H - Orbicularis oculi – light blue  (closes eye)
  2. H - platysma – dk. Blue (Thin sheet of muscle, depresses/lowers mandible, pulls lower lip down at the corner in a grimace)
  3. H – buccinator – goldenrod (compresses cheeks while chewing, whistling)
  4. H - Frontalis – dk. Green
  5. H – Occipitalis – lt. green
  6. H – Zygomaticus major & minor – yellow
  7. H – orbicularis oris – goldenrod

 

Muscles of Mastication (chewing) H= know on human/not on cat…we do not do these on the cat!

  1. H – masseter- black  *To locate on the cat you need to skin the cheek area.
  2. H – temporalis – gray * To locate on the cat you need to skin the area lateral of the eye and inferior of the ear.
  3. H – digastric – pink *to locate on the cat you need to skin the area inferior of the chin and onto the neck.   (depresses/lowers mandible=opens mouth) Synergist w/ platysma in this action)

 

Muscles that move the head

  1. Sternocleidomastoid –red *in the cat is two separate muscles (cleidomastoid +sternomastoid> tie both red)  Both appear beneath the thin platysma

 

Muscles of the abdominal wall USE WINDOWING TECHNIQUE

  1. external oblique  - aqua
  2. internal oblique – lavender
  3. rectus abdominis – purple
  4. transverse abdominis – tan (compresses abdominal contents)
  5. ####not a muscle = linea alba – white  (insertion of obliques + transverse abdominis)
  6. ####not a muscle = tendinosus intersectus = white  (creates the 6-pack look)

Muscles that move the arm (located on anterior chest)

  1. Pectoralis major – orange
  2. Pectoralis minor – dk. Green (* in cat it moves the arm…in humans it moves the scapula forward and down)
  3. Cat only – pectoantebrachialis – brown (no human corresponding muscle)
  4. Cat only – xiphihumeralis – black  (no human corresponding muscle)
  5. Seratus ventralis - pink (serratus anterior on human)

 

Muscles of breathing (located on anterior chest)

58. External intercostals  - aqua  ( pulls ribs toward one another to elevate rib cage for inspiration. Synergist to diaphragm muscle. ) USE WINDOWING TECHNIQUE (*To locate in the cat lift the xiphihumeralis  & external oblique on the opposite side of where you have tied them…reflect both…look between the ribs. 

59. Internal intercostals- gray ( pulls ribs together and depresses rib cage to aid in expiration.  Antagonist to external intercostals)  USE WINDOWING TECHNIQUE (* To locate, lift a section of external intercostals, reflect them and grab a section to tie. 

***not to be tied, but diaphragm muscle is the prime mover of inspiration.

 

Muscles of the Back

60. Latissimus Dorsi - aqua

61.  Deltoid (on a cat there are three distinct muscles Clavodeloid, Acromodeltoid and Spino deltoid) These correspond to the anterior, middle and posterior fibers of the human muscle - goldenrod

62  Rhomboid major & rhomboid minor (on the cat separate each and tie individually) - pink

63.  Trapezius - (on a cat there are three sections: clavotrapezius, acromotrapezius and spinotrapezius). - black

64.  Errector Spinae (this is one of the three shot strips of muscles that lie along the vertebra to extend the vertebra/spine)  We'll tie the lower section in the lumbar vertebra region.  - lavender

65. Teres major: dark blue

66. Teres minor light blue