Difference between revisions of "MUSCLES-TRICEPS"
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===== [[Summary Article|'''SUMMARY''']] ===== | ===== [[Summary Article|'''SUMMARY''']] ===== | ||
<i>1. Long head | <i>1. Long head: </i>arises from the infraglenoid tubercle. | ||
<br/> | <br/><i>2. Lateral head: </i>arises from the back of the humerus, extending from the surgical neck to the deltoid insertion. | ||
<br/><i>3. Medial head | <br/><i>3. Medial head: </i>arises from the medial side of the radial groove & lower posterior surface of the humerus & bilateral intermuscular septae. | ||
<br/><i>4. Insertion | <br/> | ||
<br/><i>5. Nerve supply | <br/><i>4. Insertion: </i>into the olecranon. | ||
<br/><i>6. Action | <br/><i>5. Nerve supply: </i>radial nerve. <i>Arterial supply - </i>profunda brachii a. (branch of the brachial a.) | ||
<br/><i>7. The radial n. & profunda brachii a. | <br/><i>6. Action: </i>extensor of the elbow, also assists in extending the shoulder joint. | ||
<br/><i>7. The radial n. & profunda brachii a. pass between the lateral & medial heads of the triceps. </i> | |||
<br/> | |||
<br/>[[Image:Gray412.png]] | <br/>[[Image:Gray412.png]] | ||
<br/> | <br/> | ||
<br/><b>Image: | <br/><b>Image: </b>Gray, Henry. <i>Anatomy of the Human Body.</i> Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. [https://www.bartleby.com/107/ www.bartleby.com/107/] [Accessed 21 Apr. 2019]. | ||
Latest revision as of 18:52, 8 January 2023
SUMMARY
1. Long head: arises from the infraglenoid tubercle.
2. Lateral head: arises from the back of the humerus, extending from the surgical neck to the deltoid insertion.
3. Medial head: arises from the medial side of the radial groove & lower posterior surface of the humerus & bilateral intermuscular septae.
4. Insertion: into the olecranon.
5. Nerve supply: radial nerve. Arterial supply - profunda brachii a. (branch of the brachial a.)
6. Action: extensor of the elbow, also assists in extending the shoulder joint.
7. The radial n. & profunda brachii a. pass between the lateral & medial heads of the triceps.
Image: Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. www.bartleby.com/107/ [Accessed 21 Apr. 2019].
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.
