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Chicken Wing Dissection
1. Partner 1 should put on gloves and retrieve a chicken wing
from the center lab table and place it in the dissecting tray.
2. Partner 2 is responsible for moving through the presentation
and recording answers.
Remove the skin
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If the wing is greasy, try washing
it with soap to make it easier to
handle.
Carefully remove the skin from
the chicken wing following the
cutting pattern shown in the
diagram.
Only cut away as much skin as
seen in the photo. (Leave the skin
on the hand). Do not cut through
any muscle tissue.
Answer questions 1 and 2
Muscles and Muscle Actions
Find the largest muscle
on the proximal end of
the wing called the
biceps brachii.
Read through slides 4-7
and watch the movie.
Then answer questions
3-7.

Prime mover: the
muscle that provides
most of the movement

Synergist: muscle
that assists the prime
mover
These muscles all
produce the
muscle action of
flexion.

Antagonist: the
muscle that opposes
the action of the prime
mover
If the biceps brachii flexes,
then the triceps brachii
would perform the
opposing action of ……?
Flexion and Extension
Click on the picture to
watch the video.
Then try it yourself.
It’s fun!
Answer questions 3-7 if
you have not already
done so.
Tendons
Carefully pull the biceps muscle
away from the muscles around it
but do not tear it. Find the place
where it attaches to the bone. Look
near the elbow joint.
Tendon: Attaches
muscle to bone
Answer question 8
Continue to the next
slide.
The biceps brachii got its name because it has two (bi) attachment points.
These attachment points are known as the origin.
Origin: The location
where the muscle is
attached to the relatively
immovable end of the
bone
Answer
question 9
Insertion: end of
the muscle that is
attached to the
movable bone
Answer questions
10 and 11.
Insertion
The triceps brachii has 3 origins and 1 insertion. You should refer back to
this picture when you draw and label these structures at the end of the lab.
Joints
The place where the
two bones meet is
called a joint or
articulation. Look at
the shoulder joint or
if you wish, remove
the arm muscles and
view the elbow joint.
Answer question 12.
What kind of
cartilage is this?
Ligament
Find a ligament attached
to the proximal end of
the humerus.
Or you can look for
ligaments in the elbow
joint if you cut away the
arm muscles
Answer question 13.

Ligament: Attaches bone to bone
Carefully cut
through the
ligaments.
Answer questions
14 and 15.
Draw it.
Draw in the muscles and tendons and then label the
picture of skeletal muscle structures:
Clean up directions on next slide!
Clean up!
1.
2.
3.
4.
Throw the chicken parts in the garbage.
Wash and dry your tray and dissecting tools.
Wash your hands.
The last class of the day should also wipe the lab
tables.
5. Finish your lab questions and submit your lab!
6. Complete a lab participation rubric for yourself,
be honest with your evaluation of yourself!
*Friday morning at 8 a.m. is the final
deadline for all missing/late work!*