- 1腹側的、腹面的（生物解剖用語；相對的背側是 dorsal）
An adjective used in biology to mean 'on the belly side' of an animal. Fish have a ventral fin on their ; an insect's ventral surface is the part facing the ground. Its opposite is dorsal, 'on the back side' — the fin you see cutting through the water when a shark swims is the dorsal fin, the one underneath is ventral. Scientists use this pair because 'up' and 'down' are useless when you are talking about creatures with very different body plans: a fish, a dog and a standing human all point in different directions, but every one of them has a belly side. For humans, doctors more often say anterior (front) than ventral, though ventral does appear in anatomy books and especially in talk about the brain and spinal cord. Outside biology, engineers borrow it for machines: a ventral fin on an aircraft is one on the of the fuselage. The word can also be a noun for such a part — 'the ventrals' meaning the ventral fins — but that is specialist usage. This is a textbook word, not a conversation word; nobody says 'my ventral side hurts'.
組成ventr- + -al. From Latin venter 'belly, abdomen', which came into English through French ventral. So it literally means 'belly-ish'.
同家族的字
- ventriclealso from Latin venter — a ventricle is literally a 'little belly'
原始詞典資料5 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
ventraladj/ˈvɛntɹəl/
- 1
Related to the abdomen or stomach.
- 2
anatomymedicinesciencesOn the front side of the human body, or the corresponding surface of an animal, usually the lower surface.
- 3
anatomymedicinesciencesOn or relating to the sole of the foot or the palmar surface of the hand.
- 4
anatomymedicineneuroanatomyOn the lower side of the brain.
- Mental imagery allows us to remember previous experiences and imagine new ones. Animal studies have yielded rich insight into mechanisms for visual perception, but the neural mechanisms for visual imagery remain poorly understood. We determined that approximately 80% of visually responsive single neurons in the human ventral temporal cortex (VTC) use a distributed axis code to represent objects. We used that code to reconstruct objects and generate maximally effective synthetic stimuli. We then recorded responses from the same neural population while subjects imagined specific objects; about 40% of axis-tuned VTC neurons recapitulated the visual code. Our findings reveal that visual imagery is supported by reactivation of the same neurons involved in perception, providing single-neuron evidence for the existence of a generative model in human VTC.
ventralnoun/ˈvɛntɹəl/
- 1
Any of the enlarged and transversely elongated scales that extend down the underside of a snake's body from the neck to the anal scale.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。