File:Carnegie stage 22 - pectoralis major muscle.jpg
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Pectoralis major muscle
(A) Frontal view of the reconstructed pectoralis major portions of a stage 23 human embryo (56–60 days of development), specimen number 950. All other muscles are hidden. Depicted are three heads of the pectoralis major: clavicular head (light blue), ster- nocostal head (red) and abdominal head (yellow) and bones (white).
(B) Transverse section of the left shoulder region. The pectoralis major muscle is divided into three heads at this stage and is therefore even more partitioned than in adults (Gilroy et al. 2009). The tree heads of the left pectoralis muscle and the second rib and humerus of the same specimen as in (A) are tagged.
AH, abdominal head; CH, clavicular head; PM, pectoralis major muscle; SCH, sternocostal head. Scale bar: ~5 mm.
Reference
Warmbrunn MV, de Bakker BS, Hagoort J, Alefs-de Bakker PB & Oostra RJ. (2018). Hitherto unknown detailed muscle anatomy in an 8-week-old embryo. J. Anat. , , . PMID: 29726018 DOI.
Fig. 6
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Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan
| Gwalagizhi | Nyangagi | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:43, 27 May 2018 | | 1,965 × 1,019 (313 KB) | Z8600021 (talk | contribs) | |
| 11:40, 27 May 2018 |  | 1,986 × 1,379 (460 KB) | Z8600021 (talk | contribs) | ==Pectoralis major muscle== (A) Frontal view of the reconstructed pectoralis major portions of a stage 23 human embryo (56–60 days of development), specimen number 950. All other muscles are hidden. Depicted are three heads of the pectoralis major:... |
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