ADAM Dissection - Packet 2
Name:
The Muscular System: Muscles of the Upper Extremity
_______
Refer to this packet while you complete the ADAM computer dissection. Make sure you
answer all questions asked and identify all structures listed. Once you have identified a
structure in one view you should be able to recognize it thereafter (even if its not in the
list). You may have to scroll up/down in ADAM to view & identify the muscles listed if
you do not see them in the photo provided in the packet.
1.
Open ADAM Interactive Anatomy from the ADAM folder in the Anatomy and
Physiology folder in the hard drive.
2.
Choose "Dissectible Anatomy" select the gender and the Anterior view. Then
click "open"
3.
Click on the depth bar until your reach layer 19. While looking at that view,
identify the following:
• anterior & medial deltoid
• biceps brachii
• brachioradialis
• pectoralis major
(layer 19 ADAM anatomy)
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5.
Next, scroll deeper to layer 81. This layer provides a better view of the biceps
brachii muscle. Identify the (note the brachioradialis is not in view in the photo
provided but you can scroll up/down in ADAM to view it)
• short head of biceps brachii
• brachioradialis
• long head of biceps brachii
(layer 81 ADAM anatomy)
Answer the following questions.
1. What is the insertion of the biceps brachii?
___________
2. What are the two actions of the biceps brachii?
____ &
___________
3. What is the main action of the brachioradialis?
___________
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6.
Continue on to layer 87 to view and identify the following muscles.
• brachialis
• coracobrachialis
• subscapularis
(layer 87 ADAM Anatomy)
Answer the following questions.
4. What is the origin of the coracobrachialis?
5. What is the main action of the coracobrachialis?
6. What is the origin of the brachialis?
7. What is the action of the brachialis muscle?
8. Why doesn’t the brachialis muscle supinate the forearm? (think about its
insertion)
___________________________________________
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7.
Next change the view to posterior and click on the "light bulb" button. Scroll to
layer 9 and identify these additional structures:
• posterior deltoid
• medial deltoid
• long head of triceps brachii
• lateral head of triceps brachii
• latissimus dorsi
• teres major
• teres minor
• infraspinatus
• trapezius
• biceps brachii
(layer 9 ADAM Anatomy)
9. Which head of the triceps brachii can also extend the shoulder? ______
.
10. What is the insertion of the triceps brachii muscle?
.
11. What is the insertion of the deltoid muscle?
_______
.
12. What is the action of the deltoid muscle? (when the entire muscle contracts)
________________________________________________________________
8.
Go to layer 55 to view the medial head of the triceps brachii with the long head
removed. (no graphic has been provided). Also note the spinalis and longissimus
branches of the erector spinae muscle group.
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9.
Next change the view to a lateral arm view. Drag the depth bar to layer 14 and
identify the following muscles in this view.
• long head of triceps brachii
• biceps brachii
• brachioradialis
• lateral head of triceps brachii
• brachialis
(layer 14 ADAM Anatomy)
13.
List 2 actions of the triceps brachii muscle:
1.
2.
.
5
10.
Next change the view to a medial arm view. Drag the depth bar to layer 7 and
identify the following muscles in this view.
• long head of triceps brachii
• pectoralis major
• latissimus dorsi
• infraspinatus
• anterior, medial, posterior deltoid
• biceps brachii
• coracobrachialis
• teres major
• teres minor
14. List two actions of the anterior deltoid,
1.
______
2. ____________________________
and two actions of the posterior deltoid.
1. ____________________________
2. ____________________________
15. In this view you can see all 3 parts of
the deltoid muscle. Which portion of
the deltoid is the thickest?
(anterior, medial, or posterior)
(layer 7 ADAM Anatomy)
_________________________
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