Anatomical terms of location - Wikipedia
网页In such organisms, the end with a mouth (or equivalent structure, such as the cytostome in Paramecium or Stentor), or the end that usually points in the direction of the organism's locomotion (such as the end with the flagellum in Euglena), is normally designated as …
Brain | Definition, Parts, Functions, & Facts | Britannica
网页2 天之前 · Brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the center of learning. Learn more about the parts and functions of the brain in this article.
Anatomical Terms of Location - Anterior - TeachMeAnatomy
网页2024年9月7日 · Anterior and Posterior. Anterior refers to the ‘front’, and posterior refers to the ‘back’. Putting this in context, the heart is posterior to the sternum because it lies behind it. Equally, the sternum is anterior to the heart because it lies in front of it. Examples: Pectoralis major lies anterior to pectoralis minor.
11.5: Development of the Nervous System - Medicine LibreTexts
网页The anterior end of the neural tube develops into the brain, and the posterior region becomes the spinal cord. Tissues at the edges of the neural groove, when it closes off, are called the neural crest and migrate through the embryo to give rise to PNS structures as well as some non-nervous tissues.
Anatomical Terms of Location: Anterior vs Posterior and Dorsal vs …
网页2024年2月21日 · These terms describe positions towards the front (anterior) and back (posterior) of the body, with respect to the organism’s forward motion. In humans, the chest is anterior, while the back is posterior. In cats, for …
14.1 Embryonic Development – Anatomy & Physiology
网页The anterior end of the neural tube develops into the brain, and the posterior region becomes the spinal cord. Tissues at the edges of the neural groove, when it closes off, are called the neural crest and migrate through the embryo to give rise to PNS structures as well as some non-nervous tissues.
Anatomy of the Nervous System | Anatomy and Physiology I
网页Beginning at 25 days, the anterior end develops into the brain, and the posterior portion becomes the spinal cord. This is the most basic arrangement of tissue in the nervous system, and it gives rise to the more complex structures by the fourth week of development.
Spinal cord: Anatomy, structure, tracts and function | Kenhub
网页2023年11月3日 · The anterior and posterior roots merge just before the intervertebral foramen, and form the trunk of the spinal nerve. The trunk is very short, and soon after exiting the vertebral column, it divides into four branches: anterior ramus, posterior ramus, communicating ramus, and meningeal ramus.
ANTERIOR END 释义 | 柯林斯英语词典 - Collins Online Dictionary
网页A short but broad precingulid inclines ventrally at the anterior end of the paracristid.
1.4 Anatomical Terminology – Anatomy & Physiology
网页The term “anterior” would be used even if the hand were palm down on a table. Figure 1.4.1 – Regions of the Human Body: The human body is shown in anatomical position in an (a) anterior view and a (b) posterior view. The regions of the body are labeled in boldface. A body that is lying down is described as either prone or supine.