| 释义 |
Definition of rostral in English: rostraladjective ˈrɒstr(ə)l 1Anatomy
Situated or occurring near the front end of the body, especially in the region of the nose and mouth or (in an embryo) near the hypophyseal region. the rostral portion of the brain Example sentencesExamples - The typical somatic nerve fibers in the striated muscle at the rostral end of the organ terminate in motor end plates.
- There may also be stimuli that originate from a region of the brain rostral to the pons and medulla (possibly the hypothalamus and motor cortex) and operate independently of the other stimuli.
- A peristaltic contraction, a single front of contraction moving smoothly from the rostral end of the esophagus to the stomach, always follows a swallow.
- The surgeon makes a pair of additional lesions 10 mm to 15 mm rostral and caudal to the first at each ganglion site to destroy the entire fusiform ganglion.
- Some muscles are more effective in the rostral airway, whereas others exert their greatest effect in more caudal regions.
2Zoology
Of or on the rostrum. in these snakes the rostral shield is enlarged and flattened 3historical (of a column, pillar, etc.) adorned with the beakheads of ancient warships or with representations of these.
Derivatives adverb A profusion of white fibers issuing from the ventral aspect of the dentate nucleus converge rostrally to form the main part of the superior cerebellar peduncle. Example sentencesExamples - These four pairs of lemnisci proceed rostrally into the tegmentum of the midbrain.
- In the midline rostrally are the frontal and spheroid sinuses.
- Also, Pax2 expression in the hindbrain shifts rostrally to fuse with its anterior domain in the midbrain.
- EMG signals show high amplitude spikes both rostrally and caudally, with no contralateral muscle activity and no detectable rostrocaudal lag at the onset of muscle activity.
Origin Early 19th century: from rostrum + -al. Definition of rostral in US English: rostraladjective 1Anatomy
Situated or occurring near the front end of the body, especially in the region of the nose and mouth or (in an embryo) near the hypophyseal region. the rostral portion of the brain Example sentencesExamples - Some muscles are more effective in the rostral airway, whereas others exert their greatest effect in more caudal regions.
- There may also be stimuli that originate from a region of the brain rostral to the pons and medulla (possibly the hypothalamus and motor cortex) and operate independently of the other stimuli.
- The surgeon makes a pair of additional lesions 10 mm to 15 mm rostral and caudal to the first at each ganglion site to destroy the entire fusiform ganglion.
- The typical somatic nerve fibers in the striated muscle at the rostral end of the organ terminate in motor end plates.
- A peristaltic contraction, a single front of contraction moving smoothly from the rostral end of the esophagus to the stomach, always follows a swallow.
2Zoology
Of or on the rostrum. in these snakes the rostral shield is enlarged and flattened 3historical (of a column, pillar, etc.) adorned with the rams of ancient warships or with representations of these.
Origin Early 19th century: from rostrum + -al. |