Mean: 59

1
Mean 59 Min 21 Max 95
2
Laboratory 6

• Cat Dissection Skin cat, muscles of head and neck

3
Galea aponeurotica
Frontalis
Orbicularis oculi
Nasalis
Zygomaticus minor
Zygomaticus major
Masseter
Buccinator
Risorius
Orbicularis oris
Mentalis
Platysma
Sternohyoid
Omohyoid
Sternocleidomastoid
4
Galea aponeurotica
Frontalis
Temporalis
Orbicularis oculi
Nasalis
Zygomaticus Minor
Zygomaticus Major
Masseter
Buccinator
Risorius
Sternocleidomastoid
Orbicularis oris
Levator scapulae
Mentalis
Platysma
Trapezius
5
Lateral Pterygoid
Medial Pterygoid
6
Styloglossus
Stylohyoid
Genioglossus
Hyoglossus
Geniohyoid
Mylohyoid
7
Mylohyoid
Digastric
Stylohyoid
Levator scapulae
Sternohyoid
Thyrohyoid
Omohyoid
Sternothyroid
Cricothyroid
Sternocleidomastoid
8
Digastric
Stylohyoid
Digastric
Sternocleidomastoid
Trapezius
9
Levator scapulae
Trapezius
Rhomboideus minor
Rhomboideus major
Deltoid
Infraspinatus
Teres minor
Teres major
Serratus anterior
Subclavius
10
Supraspinatus
Infraspinatus
Triceps brachii (long head)
Latissimus dorsi
11

• SKIN CAT
• Make shallow incision along nape of neck while
  pulling on skin
• Make midline incision along back of skull, down
  back to 2 onto tail. Sever tail
• Remove skin CAREFULLY, use fingers or blunt
  probes to remove it from body. Remove skin in
  ventral direction. Leave skin on head, and legs
• Once you get as far as you can without damaging
  the cat, make another incision on ventral surface
  and repeat process, removing skin in dorsal
  direction. Try not to damage nerves/blood
  vessels under skin within the superficial fascia
• You will remove a large muscle (cutaneous
  maximus), not in humans, which merges w/
  latissiumus dorsi and pectoralis in axillary
  region. Another cutaneous muscle (the platysma)
  will be removed in neck region
• If have a female cat, will remove mammary tissue
  (but careful of underlying muscle), in males, be
  very careful of reproductive, do not remove the
  scrotal covering of testes
• Clean off as much fat and other loose
  subcutaneous tissue as possible, if theres
  hairs/loose tissue, rinse in cold water.

12

• MUSCULAR SYSTEM
• GENERAL INSTRUCTIONS
• Do not chop/dig, pull apart as much as possible.
  Will need to remove fascia that covers muscles
  when it obscures them, but do not remove the
  lumbodorsal fascia
• Use metal probe to break connective tissue,
  separate muscles at cleavage lines (pull apart
  gently if necessary to find cleavage lines), then
  follow each muscle to origin and insertion
• Do not cut any muscles until directed to do so by
  lab manual
• If dissecting for deep muscles, only do that on
  one side, so the superficial muscles of the other
  side can be seen.
• Use pics at end of chapter to draw muscles onto
  human skeleton to help learn about where they are
  located, insert, etc