forelimb

简明释义

英[/ˈfɔr.lɪm/]美[/ˈfɔr.lɪm/]

n. 前肢；前翼

英英释义

单词用法

同义词

反义词

例句

1.The arterial truck of the forelimb consists of axillary, brachial, and radial arteries.

豹前肢动脉干包括腋动脉、臂动脉、挠动脉。

2.The efficacy of transgene CTL on tumor in situ (armpit of right forelimb) and ex situ (armpit of left forelimb) were observed. Mice injected with normal saline were taken as the control group.

观察转基因CTL对肿瘤原位(右前肢腋窝)及异位(左前肢腋窝皮下)注射治疗效果，分别用生理盐水注射治疗作对照。

3.If you could combine their features into one specimen of supreme manliness, their biceps would be as big as the forelimb of an ox and their neck as wide as an oak tree.

如果你能把他们的特征整合到一个拥有终极男子气概的范本身上，那么他们的二头肌将会与公牛的前肢一样大，而脖子就和橡树一样粗。

4.It had asymmetric flight feathers not only on the forelimb, but on the hindlimb as well.

它已非对称飞羽不仅对前肢，但对后肢以及。

5.Training in a forelimb reaching task leads to rapid (within an hour) formation of postsynaptic dendritic spines on the output pyramidal neurons in the contralateral motor cortex.

这种用前肢踩踏的训练，一个小时内就可以在两侧运动皮层的椎体神经元上形成突触后“树枝状小棘”的结构。

6.Brachium: the part of the upper arm or forelimb extending from the shoulder to the elbow.

肱，上臂：从肩至肘之间的上臂部分或前肢。

7.The distribution of forelimb arteries in a leopard was observed by perfusion.

通过动脉灌注解剖观察了豹的前肢动脉分布。

8.The absolute growth of the head weight, forelimb weight, hind limb weight, body length, forelimb length, hind limb length, shin length and the third toe length showed a pattern of normal distribution.

头重、前肢和后肢重以及胚长、前肢、后肢、胫和第三趾长的生长速度表现为正态分布的变化趋势。

9.In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing-like membrane.

翼龙的每个前肢都有一根长长的第四指，支撑着像翅膀一样的膜。

10.The dog used its forelimb to dig a hole in the ground.

这只狗用它的前肢在地上挖了一个洞。

11.In some species, the forelimb is adapted for flying.

在某些物种中，前肢适应了飞行。

12.The veterinarian examined the cat's injured forelimb carefully.

兽医仔细检查了猫受伤的前肢。

13.Bats have elongated forelimbs that support their wings.

蝙蝠的前肢延长，支撑着它们的翅膀。

14.The monkey swung from branch to branch using its strong forelimbs.

这只猴子用它强壮的前肢从一根树枝荡到另一根。

作文

The term forelimb refers to the front limbs of an animal, which are crucial for various functions such as locomotion, manipulation, and balance. In many species, including mammals, birds, and reptiles, the forelimb plays a significant role in their survival and adaptation to different environments. For instance, in humans, the forelimb is represented by the arms, which are highly versatile and capable of performing intricate tasks. This adaptability has allowed humans to develop tools and engage in complex activities that require fine motor skills. In contrast, consider how different animals have evolved their forelimbs to suit their specific needs. For example, bats possess wings that are modified forelimbs, allowing them to fly. The structure of their forelimb is uniquely adapted with elongated fingers covered by a thin membrane, enabling them to maneuver through the air with agility. Similarly, whales have evolved flippers from their forelimbs, which assist in swimming. These adaptations highlight the diversity of forelimb functions across species. Another interesting aspect of forelimbs is their role in communication. Many animals use their forelimbs to signal to others, whether through gestures or displays. For instance, primates often use their arms to express emotions or intentions, showcasing the importance of forelimbs beyond mere physical utility. In birds, the forelimbs can also play a role in courtship displays, where intricate movements can attract potential mates. Moreover, the study of forelimbs provides valuable insights into evolutionary biology. By examining the anatomical structures of various species, scientists can trace back the lineage of forelimbs and understand how they have transformed over millions of years. This comparative anatomy reveals how different environmental pressures have shaped the development of forelimbs, leading to the vast array of forms we see today. In conclusion, the forelimb is not just a simple appendage; it is a vital component of an animal's anatomy that serves multiple purposes. From aiding in movement and manipulation to facilitating communication and contributing to evolutionary success, the forelimb exemplifies the intricate relationship between form and function in the animal kingdom. Understanding the significance of forelimbs enriches our appreciation of biodiversity and the complexities of life on Earth.

术语forelimb指的是动物的前肢，它们对各种功能至关重要，例如运动、操作和平衡。在许多物种中，包括哺乳动物、鸟类和爬行动物，forelimb在它们的生存和适应不同环境中发挥着重要作用。例如，在人类中，forelimb表现为手臂，具有高度的多功能性，能够执行复杂的任务。这种适应性使人类能够开发工具并参与需要精细运动技能的复杂活动。 相反，考虑一下不同动物如何进化出它们的forelimbs以适应特定需求。例如，蝙蝠拥有改良的forelimbs形成翅膀，使它们能够飞行。它们的forelimb结构独特，手指延长并覆盖薄膜，使它们能够灵活地在空中穿行。同样，鲸鱼的forelimbs演变成鳍，帮助它们游泳。这些适应突显了不同物种之间forelimb功能的多样性。 Forelimbs的另一个有趣方面是它们在沟通中的作用。许多动物使用它们的forelimbs来向其他动物发出信号，无论是通过手势还是展示。例如，灵长类动物经常用它们的手臂表达情感或意图，展示了forelimbs超越单纯身体效用的重要性。在鸟类中，forelimbs也可以在求偶展示中发挥作用，复杂的动作可以吸引潜在的伴侣。 此外，研究forelimbs为进化生物学提供了宝贵的见解。通过检查各种物种的解剖结构，科学家可以追溯forelimbs的谱系，并理解它们在数百万年中的演变。这种比较解剖学揭示了不同环境压力如何塑造forelimbs的发展，导致我们今天看到的各种形式。 总之，forelimb不仅仅是一个简单的附肢；它是动物解剖中的一个重要组成部分，具有多种用途。从帮助运动和操作到促进沟通和促进进化成功，forelimb体现了动物王国中形态与功能之间错综复杂的关系。理解forelimbs的重要性丰富了我们对生物多样性及地球生命复杂性的欣赏。