Notes

1
Class Topics
Title Anat Phys 1/26/07
Objectives

• .

• Notes Arm muscles
• Power point time
• The most effective way to cope with change is to
  help create it.
• L.W. Lynett

Tuesday, December 22, 2020 1240 AM
2
Class Assignments
By When
What

• Lab Practical II 2/5/07
• Due this class period
• Due next class period
• Due in the future

3
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!

4
Muscles to be identified in the cat

• Pectoantebrachialis
• Pectoralis major
• Pectoralis minor
• Xiphihumeralis
• Serratus anterior
• Latissimus dorsi
• Spinotrapezius
• Acromiotrapezius
• Clavotrapezius
• Rhomboidius major

• Rhomboideus minor
• Levator Scapulae
• Teres major
• Clavobrachialis
• Acromiodeltoid
• Spinodeltoid
• Sternomastoid
• Cleidomastoid
• Sternohyoid
• Digastric

5
From http//www.bio.psu.edu/people/faculty/straus
s/anatomy/musc/upperarm.htm
6
Biceps brachii

• Attachments
• short head
• coracoid process
• long head
• glenoid tuberosity (glenoid cavity)
• Radial tuberosity
• Bicepital aponeurosis
• Action
• Flexes forearm

7
From http//www.bodybuilding.com/fun/exercises.ht
m
8
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

9
(No Transcript)
10
Epitrochlearis

• Only in cat
• Covers the triceps brachii

11
Brachioradialis

• Attachments
• Lateral epicondyle of humerus
• Styloid process of radius
• Actions
• Flexes forearm

12
(No Transcript)
13
Brachialis

• Attachments
• distal surface of humerus (shaft)
• Coronoid process of ulna
• Actions
• Flexes forearm

14
(No Transcript)
15
From http//www.bodybuilding.com/fun/exercises.ht
m
16
Rectus Abdominis

• Attachments
• Pubic symphysis
• Xiphoid process, costal cartilage of ribs 5-7
• Actions
• Flexes vertebral column
• depresses ribs

17
(No Transcript)
18
(No Transcript)
19
External Oblique

• Attachments
• Lower eight ribs
• linea alba, and iliac crest
• Actions
• compresses abdomen, flexes or bends spine

20
Internal Oblique

• Attachments
• Lumbodorsal fascia, iliac crest
• Lower ribs, xiphoid process, linea alba
• Actions
• Same as external oblique

21
Transverse Abdominis

• Attachments
• Lower ribs, iliac crest, lumbodorsal fascia
• Linea alba, pubis
• Actions
• compresses abdomen

22
(No Transcript)
23
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!

24
Lab Practical II

• Biceps brachii
• Triceps brachii
• Long head
• Lateral head
• Medial head
• Epitrochlearis
• Brachialis
• Brachioradialis

• Rectus abdominis
• Internal oblique
• External oblique
• Transverse abdominis

As well as all muscles from Lab Practical I