| 单词 | pectoral girdle |
| 例句 | Fast forward 100 million years, and fish called placoderms swam the seas, with jaws and a primitive “shoulder” or pectoral girdle supporting paired front fins. Where did shoulders come from? Ancient fish reveal joint’s evolution 2023-11-01T04:00:00Z The pectoral girdle bones transfer force generated by muscles acting on the upper limb to the thorax. Concepts of Biology 2013-04-25T00:00:00Z The scapulae are flat, triangular bones that are located at the back of the pectoral girdle. Biology for AP Courses 2022-06-09T00:00:00Z Figure 11.22 Muscles That Position the Pectoral Girdle The muscles that stabilize the pectoral girdle make it a steady base on which other muscles can move the arm. Anatomy and Physiology 2013-06-19T00:00:00Z “We hope that this study will encourage other researchers to re-examine the structure and evolution of the pectoral girdle from this new perspective,” Camp said. These Sharks Feed in a Surprising Way 2017-07-18T04:00:00Z In the 1800s, biologists suggested the pectoral girdle—which eventually gave rise to the human shoulder—came from other gill arches. Where did shoulders come from? Ancient fish reveal joint’s evolution 2023-11-01T04:00:00Z For example, "the bones in the pectoral girdle — the bones that support the fins — changed their shape," she says. Scientists raised these fish to walk on land 2014-08-27T04:00:00Z Another change in the axial skeleton was the loss of a direct attachment between the pectoral girdle and the head. Biology for AP Courses 2022-06-09T00:00:00Z Comparatively, there is much more movement at the pectoral girdle than at the pelvic girdle. Anatomy and Physiology 2013-06-19T00:00:00Z “Our observations of pectoral girdle motion in bamboo sharks are a first step; more work is needed to understand pectoral girdle motion in other sharks and fishes.” These Sharks Feed in a Surprising Way 2017-07-18T04:00:00Z Known placoderms have at most five gill arches, others having evolved into jaws and the hyoid, so the pectoral girdle derives from what was once the sixth gill arch, Brazeau’s team concludes. Where did shoulders come from? Ancient fish reveal joint’s evolution 2023-11-01T04:00:00Z Apparently, then, there is not sufficient reason to infer that this Jurassic frog had a pectoral girdle comparable with the modern firmisternal type. The Ancestry of Modern Amphibia: A Review of the Evidence 2011-09-10T02:00:27.077Z The shoulders attach to the pectoral girdle through muscles and connective tissue, thus reducing the jarring of the skull. Biology for AP Courses 2022-06-09T00:00:00Z The bones of the shoulder region form the pectoral girdle, which anchors the upper limb to the thoracic cage of the axial skeleton. Anatomy and Physiology 2013-06-19T00:00:00Z In ray-finned fish, such as catfish, the pectoral girdle is directly attached to the skull and retracts when suction feeding occurs. These Sharks Feed in a Surprising Way 2017-07-18T04:00:00Z At first, the pectoral girdle enabled gill-lifting muscles to better open the mouth, leading to the evolution of diverse fish feeding systems, Brazeau says. Where did shoulders come from? Ancient fish reveal joint’s evolution 2023-11-01T04:00:00Z A nearly complete pectoral girdle on specimen K. U. no. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas The pectoral girdle is composed of the clavicles and the scapulae. Biology for AP Courses 2022-06-09T00:00:00Z Figure 8.3 Pectoral Girdle The pectoral girdle consists of the clavicle and the scapula, which serve to attach the upper limb to the sternum of the axial skeleton. Anatomy and Physiology 2013-06-19T00:00:00Z All species have large cartilaginous plates in the pectoral girdles; none possesses a bony style. Genera of Leptodactylid Frogs in México Note the large sub-cutaneous lymph spaces, the pelvic and pectoral girdles, and the anterior abdominal vein. Text Book of Biology, Part 1: Vertebrata A, pectoral girdle, lateral view, based on K. U. no. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas In the same way the hyoid apparatus is part and parcel of the parietal vertebra, and the pectoral girdle and fore-limbs part of the occipital vertebra. Form and Function A Contribution to the History of Animal Morphology The right and left pectoral girdles are not joined to each other, allowing each to operate independently. Anatomy and Physiology 2013-06-19T00:00:00Z The pectoral girdle, consisting of the clavicle and the scapula, attaches each upper limb to the axial skeleton. Anatomy and Physiology 2013-06-19T00:00:00Z Cut away the ventral part of the pectoral girdle, to open pericardium. Text Book of Biology, Part 1: Vertebrata The scapula lies on the posterior aspect of the pectoral girdle. Anatomy and Physiology 2013-06-19T00:00:00Z This being so, their supporting elements, the sternum and the ribs, must have moved with them, and are hence to be found in front of the pectoral girdle. Form and Function A Contribution to the History of Animal Morphology This forms the sternoclavicular joint, which is the only bony articulation between the pectoral girdle of the upper limb and the axial skeleton. Anatomy and Physiology 2013-06-19T00:00:00Z Discuss the sequence of bones and joints that convey the forces passing from your hand, through your upper limb and your pectoral girdle, and to your axial skeleton. Anatomy and Physiology 2013-06-19T00:00:00Z Discuss two possible injuries of the pectoral girdle that may occur following a strong blow to the shoulder or a hard fall onto an outstretched hand. Anatomy and Physiology 2013-06-19T00:00:00Z The clavicle and scapula make up the pectoral girdle, which provides a stable origin for the muscles that move the humerus. Anatomy and Physiology 2013-06-19T00:00:00Z But he is immediately met by the difficulty that this complex of bones is situated in front of the pectoral girdle, whereas the sternum in higher Vertebrates lies behind the pectoral girdle. Form and Function A Contribution to the History of Animal Morphology In addition, the clavicle of each pectoral girdle is anchored to the axial skeleton by a single, highly mobile joint. Anatomy and Physiology 2013-06-19T00:00:00Z The muscles that position and stabilize the pectoral girdle are located on the thorax. Anatomy and Physiology 2013-06-19T00:00:00Z In Lepidosiren, whose skeleton resembles the archetype in many ways, the pectoral girdle is likewise attached to the occipital segment. Form and Function A Contribution to the History of Animal Morphology Geoffroy considers that the external opening of the ear corresponds to the external opening of the gill-chamber, which lies between the operculum and the pectoral girdle. Form and Function A Contribution to the History of Animal Morphology Owen's reasons for considering the pectoral girdle and the fore-limb part of the occipital vertebra are as follows. Form and Function A Contribution to the History of Animal Morphology This allows for the extensive mobility of the entire pectoral girdle, which in turn enhances movements of the shoulder and upper limb. Anatomy and Physiology 2013-06-19T00:00:00Z |
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