MUSCULAR ANATOMY OF THE PECTORAL AND FORELIMB OF Caiman crocodilus crocodilus (LINNAEUS, 1758) (CROCODYLIA: ALLIGATORIDAE)

Lima, Fabiano Campos; Leite, Anastácia Vale; Santos, André Luíz Quagliatto; Sabec-Pereira, Dayane Kelly; Araújo, Eugênio Gonçalves de; Pereira, Kleber Fernando

doi:10.1590/1089-6891v17i233788

Cited by 8 publications

(19 citation statements)

References 28 publications

(87 reference statements)

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“…However, crocodilians present two or three heads -cranial and caudal; cranial, caudal and deep (ABDALA; DIOGO, 2010;LIMA et al, 2016;MEERS, 2003). Varanus exanthematicus also presents three heads -anterior, middle e posterior -(JENKINS; GOSLOW, 1983) and we observed the same segmentation in Iguana i. iguana, parts ascendant, transverse and descendent.…”

Section: Discussionsupporting

confidence: 71%

“…Muscle pectoralis performs retraction and adduction of the humerus (MEERS, 2003;ROMÃO et al, 2013 DIOGO, 2010;JENKINS;GOSLOW, 1983;LIMA et al, 2016;MEERS, 2003;ROMÃO et al, 2013;ROMER, 1944;ZAAF et al 1999).…”

Section: Discussionmentioning

confidence: 99%

“…Classically, muscle deltoideus clavicularis is reported as superficial, occupying a large portion of the scapular surface, it acts as a humerus protactor and supports the shoulder joint (LIMA et al, 2016;MEERS, 2003). Romão et al, (2013), by particular reasons, describes this muscle as m. deltoideus scapularis proximalis in C. latirostris and Zaaf et al (1999) characterize it as m. clavodeltoideus.…”

Section: Discussionmentioning

confidence: 99%

“…Romão et al, (2013), by particular reasons, describes this muscle as m. deltoideus scapularis proximalis in C. latirostris and Zaaf et al (1999) characterize it as m. clavodeltoideus. In crocodilians, it arises along the cranial margin of the scapula (LIMA et al, 2016;MEERS, 2003;ROMÃO et al, 2013). In L. agilis exigua, the origin occurs from the internal and external surface of the cranial margin of the clavicle (ROMER, 1944).…”

Section: Discussionmentioning

confidence: 99%

“…It usually inserts onto the deltopectoral crest or adjacent to it (JENKINS; GOSLOW, 1983;LIMA et al, 2016;MEERS, 2003;ROMÃO et al, 2013;ROMER, 1944;ZAAF et al 1999). In the lizards above mentioned, the common insertion of the mm.…”

Section: Discussionmentioning

confidence: 99%

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Muscular anatomy of the pectoral girdle and forelimb of Iguana i. iguana (Squamata: Iguanidae)

Freitas¹,

Sabec-Pereira²,

Pereira³

et al. 2017

Biosci. J.

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ABSTRACT:Green iguana has arboreal and terrestrial habits. It is widely distributed in Central and South America, inhabiting several biomes in Brazil. Some researches were focused on this species, however, morphological information are still limited. With that in sight, we aimed to add data to the anatomical knowledge. Two post mortem specimen of Iguana i. iguana were acquired, donated by a scientific breeding, and dissected. To describe the muscles we refuted the skin and removed the fascias, individualizing the muscles. We identified the following muscles: pectoralis, deltoideus clavicularis, deltoideus scapularis, trapezius, latissimus dorsi, coracobrachialis brevis, coracobrachialis longus, serratus thoracis, levator scapulae, biceps brachii and triceps brachii. Some of them, like coracobrachialis brevis, present conservative anatomy, originating from the ventral surface of the coracoid and inserting onto the proximal humerus. Some, like trapezius and biceps brachii, are similar to other reptile species, trapezius takes its origin from the thoracodorsal fascia and biceps arises by two heads and inserts on the radial tuberosity. Deltoideus clavicularis and deltoideus scapularis share a common insertion tendon. Pectoralis varies its origin and divisions, however, the insertion always occur on the deltopectoral crest. Triceps brachii is comprised of four heads. Its long medial head originates via a tendinous arc, feature described only in crocodilians. We conclude that Iguana i. iguana forelimb musculature is similar to other reptiles, presenting its own characteristics that reflect its habits.

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Section: Discussionsupporting

confidence: 71%