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Triceps Brachii Muscle: Long Head

image descriptionTriceps Brachii Muscle: Long Head

A posterior view of the upper arm and shoulder showing the bony elements and the associated muscles. The visible, labelled muscles are as follows: Trapezius, Deltoid, Teres Minor, Teres Major, Triceps Brachii: Long Head (highlighted in green), Triceps Brachii: Lateral Head, Latissimus Dorsi, Triceps Brachii: Medial Head.
A posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible, labelled muscles are as follows: Infraspinatus, Teres Minor, Teres Major, Triceps Brachii: Long Head (highlighted in green), Triceps Brachii: Lateral Head, Latissimus Dorsi, Triceps Brachii: Medial Head.
A posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible, labelled muscles are as follows: Teres Major, Triceps Brachii: Long Head (highlighted in green), Triceps Brachii: Lateral Head, Latissimus Dorsi, Triceps Brachii: Medial Head.
A posterior view of the upper arm and shoulder showing the bony elements and isolated Triceps Brachii Long Head.
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image descriptionAttachments of the Triceps Brachii Muscle Long Head : Origin and Insertion

Origin (proximal attachment)
a. Infraglenoid tubercle of the scapula.

Insertion (distal attachment)
a. Posterior olecranon process of ulna.

A posterior view of the upper arm and shoulder showing the bony elements and the associated muscles. The visible, labelled muscles are as follows: Trapezius, Deltoid, Teres Minor, Teres Major, Triceps Brachii: Long Head (highlighted in green), Triceps Brachii: Lateral Head, Latissimus Dorsi, Triceps Brachii: Medial Head.
A posterior view of the upper arm and shoulder showing the bony elements and isolated Triceps Brachii Long Head.
A posterior view of the upper arm and shoulder showing the bony elements and the attachment of the Triceps Brachii Long Head. Origin at the infraglenoid tubercle of scapula is marked by a red oval. The insertion at the posterior olecranon process of the ulna is marked by a blue oval. Transparent Triceps Brachii Long Head connects the two attachment sites.
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Actions of the Triceps Brachii Muscle Long Head:

a.  image descriptionExtends the forearm at elbow. (It also extends the arm at the shoulder).

 

Slide 1 of the animation showing forearm extension at the elbow.
Slide 2 of the animation showing forearm extension at the elbow.
Slide 3 of the animation showing forearm extension at the elbow.
Slide 4 of the animation showing forearm extension at the elbow.
Slide 5 of the animation showing forearm extension at the elbow.

Nerve to the Triceps Brachii muscle Long Head and its spinal segment:

a. Radial nerve (C7, C8).

An overview of the posterior arm muscles

A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the associated soft structures. The visible structures are labelled 1-8 and the answers in the box below are concealed.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are labelled 1-8 The answers in the box below are as follows 1.Trapezius 2. Deltoid 3. Teres Minor 4. Teres Major 5. Triceps Brachii: Long Head 6. Triceps Brachii: Lateral Head 7. Latissimus Dorsi 8. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are labelled 1-9. The answers in the box below are as follows 1.Supraspinatus 2. Deltoid 3. Infraspinatus 4. Teres Minor 5.. Teres Major 6. Triceps Brachii: Long Head 7. Triceps Brachii: Lateral Head 8. Latissimus Dorsi 9. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-8. The answers in the box below are as follows 1. Supraspinatus 2. Infraspinatus 3. Teres Minor 4. Teres Major 5. Triceps Brachii: Long Head 6. Triceps Brachii: Lateral Head 7. Latissimus Dorsi 8. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-7. The answers in the box below are as follows: 1. Infraspinatus 2. Teres Minor 3. Teres Major 4. Triceps Brachii: Long Head 5. Triceps Brachii: Lateral Head 6. Latissimus Dorsi 7. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-7. The answers in the box below are as follows 1. Infraspinatus 2. Teres Minor 3. Teres Major 4. Triceps Brachii: Long Head 5. Triceps Brachii: Lateral Head 6. Latissimus Dorsi 7. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-6. The answers in the box below are as follows 1. Teres Minor 2. Teres Major 3. Triceps Brachii: Long Head 4. Triceps Brachii: Lateral Head 5. Latissimus Dorsi 6. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures of the forearm are numbered 1-5. The answers in the box below are as follows 1. Teres Major 2. Triceps Brachii: Long Head 3. Triceps Brachii: Lateral Head 4. Latissimus Dorsi 5. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-4. The answers in the box below are as follows 1. Triceps Brachii: Long Head 2. Triceps Brachii: Lateral Head 3. Latissimus Dorsi 4. Triceps Brachii: Medial Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the deeper muscles. The visible structures are numbered 1-2. The answers in the box below are as follows 1. Triceps Brachii: Long Head 2. Triceps Brachii: Lateral Head.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the isolated Triceps Brachii Long Head labelled 1.
A test yourself image of the posterior view of the upper arm and shoulder showing the bony elements and the attachment of the Triceps Brachii Long Head. Origin at the infraglenoid tubercle of scapula is marked by a red oval. The insertion at the posterior olecranon process of the ulna is marked by a blue oval. Transparent Triceps Brachii Long Head connects the two attachment sites.
Test yourself while observing the Triceps Brachii muscle Long Head
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