Search results
Results from the WOW.Com Content Network
Finally, in adults, the head represents approximately 12% of the body length. The cephalocaudal trend is also the trend of infants learning to use their upper limbs before their lower limbs. The proximodistal trend, on the other hand, is the prenatal growth from 5 months to birth when the fetus grows from the inside of the body outwards.
There is a genetic cephalocaudal (head-to-foot) trend in both prenatal and postnatal development. [2] As a baby grows, they learn to sit up, stand, walk, and run; these capacities develop in a specific order with the growth of the nervous system, even though the rate of development may vary from child to child.
This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal.
More teeth appear, often in the order of two lower incisors then two upper incisors followed by four more incisors and two lower molars but some babies may still be waiting for their first. Arm and hands are more developed than feet and legs (cephalocaudal development); hands appear large in proportion to other body parts.
Anatomical terms of location depend on the location and species that is being described.. To understand the terms used for anatomical localisation, consider an animal with a straight CNS, such as a fish or lizard.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies.Most of them are combining forms in Neo-Latin and hence international scientific vocabulary.
As a result of the cephalocaudal and lateral folding of the embryo, a portion of the endoderm-lined yolk sac cavity is incorporated into the embryo to form the primitive gut. In the cephalic and caudal parts of the embryo, the primitive gut forms a tube, the foregut and hindgut, respectively.