Download Class Topics

5/24/2017
Title:
Anat & Phys
1/26/07
Objectives:
.
Class Topics
• Notes – Arm muscles
• Power point time
“The most effective way to cope with
change is to help create it.”
L.W. Lynett
Wednesday, May 24, 2017 4:14 PM
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Class Assignments
What
• Lab Practical II
By When
2/5/07
• Due this class period
• Due next class period
• Due in the future
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Power Point
• One slide for each muscle identified
in the cat
• The muscle must be labeled
– Either by an arrow, a number or by name
on the picture
• This is mostly for your review
purposes!
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Muscles to be identified in the cat
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Pectoantebrachialis
Pectoralis major
Pectoralis minor
Xiphihumeralis
Serratus anterior
Latissimus dorsi
Spinotrapezius
Acromiotrapezius
Clavotrapezius
Rhomboidius major
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Rhomboideus minor
Levator Scapulae
Teres major
Clavobrachialis
Acromiodeltoid
Spinodeltoid
Sternomastoid
Cleidomastoid
Sternohyoid
Digastric
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From:
http://www.bio.psu.edu/people/fac
ulty/strauss/anatomy/musc/upper
arm.htm
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Biceps brachii
• Attachments
– short head
• coracoid process
– long head
• glenoid tuberosity (glenoid cavity)
– Radial tuberosity
– Bicepital aponeurosis
• Action
– Flexes forearm
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From: http://www.bodybuilding.com/fun/exercises.htm
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Triceps brachii
• Attachments
– Proximal
• Lateral head
– superior margin of humerus
• Long head
– Glenoid tuberosity (Glenoid cavity)
• medial head
– Humerus
– Distal
• Olecranon process
• Action
– Extends forearm
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Epitrochlearis
• Only in cat
• Covers the triceps brachii
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Brachioradialis
• Attachments
– Lateral epicondyle of humerus
– Styloid process of radius
• Actions
– Flexes forearm
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Brachialis
• Attachments
– distal surface of humerus (shaft)
– Coronoid process of ulna
• Actions
– Flexes forearm
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From: http://www.bodybuilding.com/fun/exercises.htm
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Rectus Abdominis
• Attachments
– Pubic symphysis
– Xiphoid process, costal cartilage of ribs
5-7
• Actions
– Flexes vertebral column
– depresses ribs
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External Oblique
• Attachments
– Lower eight ribs
– linea alba, and iliac crest
• Actions
– compresses abdomen, flexes or bends
spine
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Internal Oblique
• Attachments
– Lumbodorsal fascia, iliac crest
– Lower ribs, xiphoid process, linea alba
• Actions
– Same as external oblique
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Transverse Abdominis
• Attachments
– Lower ribs, iliac crest, lumbodorsal
fascia
– Linea alba, pubis
• Actions
– compresses abdomen
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Dissection activities
• Continue dissection of arm muscles
• Dissection of abdominal muscles
– Have to go through thick fascia to get to
rectus abdominis
– External oblique is already visible
• You must CUT through the external oblique
to get to internal oblique and transverse
abdominis
– Check the direction the fibers are running!
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Lab Practical II
• Biceps brachii
• Triceps brachii
– Long head
– Lateral head
– Medial head
• Epitrochlearis
• Brachialis
• Brachioradialis
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•
Rectus abdominis
Internal oblique
External oblique
Transverse
abdominis
As well as all muscles
from Lab Practical I
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