Fetal Pig #3 Lab: Muscular System
Part 3 : Superficial Muscles
1. Using the Fetal Pig Dissection Guide, skin the pig as noted on pp. 20 & 21.
2. Using pp. 23 – 25 as a reference, locate and identify each of the following
muscles in your lab report. Label them on an image of your pig and list their
function in your laboratory journal.
Superficial Muscles: Ventral View
a. Thoracic Muscle Ventral
 Pectoralis Major
 Pectoralis Minor
 Latissimus Dorsi
b. Abdominal Muscles
 External Oblique
 Internal Oblique
 Transversus Abdominis
 Rectus Abdominus
c. Thigh



Sartorius
Gracilis
(Femoral Artery?)
d. Shoulder and Neck Muscles
 Brachiocephalic
 Sternomastoid
 Sternohyoid
 Sternothyroid
 Thyrohyoid
 Mylohyoid
Superficial Muscles – Lateral View
a. Shoulder Area
 Deltoid group
 Brachiocephalic
 Acromiodeltoid
 Spinodeltoid
b. Rib Cage Area
 Intercostals
c. ForeLimb
 Triceps Brachii,
d. Lower Foreleg




Extensor Carpi Radialis
Extensor Digitorum Communis
Extensor Carpi Ulnaris
Extensor Digitorum Lateralis
e. Hip and Thigh
 Gluteus Maximus
 Gluteus Medius
 Hamstrings
 Biceps Femoris
 Semitendinosus
 Semimembranosus
f. Lower Hindleg
 Gastronemius
 Soleus
 Tibialis Anterior
 Peroneus
 Extensor Digitorum Longus