outline of nervous system
... vegetative functions (sleep/wakefulness, vomite center, vestibular and cochlear nuclei, vagal nuclei) ventricles: lateral paired, in forebrain, curve along with caudate nucleus and fornix around lenticular nuclei, internal capsule and thalamus foramen of Monroe ...
... vegetative functions (sleep/wakefulness, vomite center, vestibular and cochlear nuclei, vagal nuclei) ventricles: lateral paired, in forebrain, curve along with caudate nucleus and fornix around lenticular nuclei, internal capsule and thalamus foramen of Monroe ...
Reproductive System, Day 5 (Professor Powerpoint)
... ♦ The haploid nuclei of the ovum & sperm fuse to form a common diploid segmentation nucleus (the ZYGOTE) ♦ Occasionally a single fertilized egg splits into two shortly after fertilization = monozygotic/identical twins • Sometimes (very rare) the “split” is not complete, so they remain joined = siame ...
... ♦ The haploid nuclei of the ovum & sperm fuse to form a common diploid segmentation nucleus (the ZYGOTE) ♦ Occasionally a single fertilized egg splits into two shortly after fertilization = monozygotic/identical twins • Sometimes (very rare) the “split” is not complete, so they remain joined = siame ...
Registration of the digital Morel atlas to the MNI brain
... Neurological Institute (MNI), is pivotal to voxel-based statistics and anatomical assignment. Many nuclei of the human thalamus are not visible on structural MRI due to small size and/or poor contrast, but on histology-based stereotactic atlases (1) that have now become available in digital form. Th ...
... Neurological Institute (MNI), is pivotal to voxel-based statistics and anatomical assignment. Many nuclei of the human thalamus are not visible on structural MRI due to small size and/or poor contrast, but on histology-based stereotactic atlases (1) that have now become available in digital form. Th ...
Gross anatomy, and terms for directions and sections
... straight in many animals, and curved in humans. • Rostral / caudal; ventral / dorsal ...
... straight in many animals, and curved in humans. • Rostral / caudal; ventral / dorsal ...
Anatomical Position and Directional Terms
... feet flat on the floor and directed forward, arms are at the sides of the body with palms turned forward. ...
... feet flat on the floor and directed forward, arms are at the sides of the body with palms turned forward. ...
Ethical aspects of cloning techniques
... development to birth. If the two pronuclei, taken from fertilised eggs and transferred into an enucleated egg, are only maternal or only paternal, normal development does not occur. This is not cloning, since the single embryo formed ...
... development to birth. If the two pronuclei, taken from fertilised eggs and transferred into an enucleated egg, are only maternal or only paternal, normal development does not occur. This is not cloning, since the single embryo formed ...
Kingdom Animalia
... Sexual reproduction Movement (some) Specialization (some) Over 1.2 million species know and classified ...
... Sexual reproduction Movement (some) Specialization (some) Over 1.2 million species know and classified ...
bilaminarand trilaminar discs2011-09-11 07:034.1 MB
... Isolated spaces appear within the Extraembryonic mesoderm. These spaces fuse and form the Extraembryonic Coelom. It surrounds the amnion and yolk sac. ...
... Isolated spaces appear within the Extraembryonic mesoderm. These spaces fuse and form the Extraembryonic Coelom. It surrounds the amnion and yolk sac. ...
Lecture 1
... primordial axis of the embryo and gives it form (rigidity). Serves of the bases for the development of the axial skeleton. It indicates the future site of vertebral bodies. Neural plate and tube - Neural plate formed thickened neuro-epithelial cells from embryonic ectoderm, as the notochord develops ...
... primordial axis of the embryo and gives it form (rigidity). Serves of the bases for the development of the axial skeleton. It indicates the future site of vertebral bodies. Neural plate and tube - Neural plate formed thickened neuro-epithelial cells from embryonic ectoderm, as the notochord develops ...
Word file.
... course would benefit most from study and understanding of development or study and understanding of genetics. If three sessions are available then the material splits nicely into one session on prenatal development, one session on parturition, development after birth and aging, and a final session o ...
... course would benefit most from study and understanding of development or study and understanding of genetics. If three sessions are available then the material splits nicely into one session on prenatal development, one session on parturition, development after birth and aging, and a final session o ...
Lecture 5 Sponges and hydra
... • Eggs and sperm from solitary, sexual, adult medusa (jellyfish) develop into an embryo and planula larva, and they then form the colonial polyp stage. • Medusae are formed asexually from polyps. These medusae have a limited lifespan and die shortly after releasing their gametes ...
... • Eggs and sperm from solitary, sexual, adult medusa (jellyfish) develop into an embryo and planula larva, and they then form the colonial polyp stage. • Medusae are formed asexually from polyps. These medusae have a limited lifespan and die shortly after releasing their gametes ...
Developmental Patterns
... • acoelomate = blastocoel fills w/ mesoderm cells, thus only gut cavity – tissue btwn ecto- and endodermis filled by parenchyma cells which are spongy and func. in food transport, waste disposal • pseudocoelomate = mesoderm cells line outer edge of blastocoel, thus 2 body cavities (pseudocoelom, gut ...
... • acoelomate = blastocoel fills w/ mesoderm cells, thus only gut cavity – tissue btwn ecto- and endodermis filled by parenchyma cells which are spongy and func. in food transport, waste disposal • pseudocoelomate = mesoderm cells line outer edge of blastocoel, thus 2 body cavities (pseudocoelom, gut ...
Pregnancy and development File
... – hCG levels rise until the end of the second month, then decline as the placenta begins to secrete progesterone and estrogen ...
... – hCG levels rise until the end of the second month, then decline as the placenta begins to secrete progesterone and estrogen ...
What is an animal? Part 1
... • Gastrula opening becomes mouth in protostomes • Gastrula opening becomes anus in deuterostomes • Some develop larval forms before adult • Birth occurs after development reaches a satisfactory stage • Viviparous, oviparous, ovoviviparous ...
... • Gastrula opening becomes mouth in protostomes • Gastrula opening becomes anus in deuterostomes • Some develop larval forms before adult • Birth occurs after development reaches a satisfactory stage • Viviparous, oviparous, ovoviviparous ...
OriginalArticle
... of each stage mentioned was processed as followed. After cutting the egg shell at the embryonic pole off, the embryos were seen floating on the yolk sac. The embryos were separated from the yolk by using a sharp tip scissors cutting around the body of embryos. With the aid of a spatula, the embryos ...
... of each stage mentioned was processed as followed. After cutting the egg shell at the embryonic pole off, the embryos were seen floating on the yolk sac. The embryos were separated from the yolk by using a sharp tip scissors cutting around the body of embryos. With the aid of a spatula, the embryos ...
Biology\Worm Unit
... - information is stored chemically & can be transferred by eating another planarian with this knowledge - can learn - hermaphroditic but not self-fertile (2 planarians fertilize each other at same time) - can divide in 2 (asexual reproduction) - can regenerate - Most common example is the planarian. ...
... - information is stored chemically & can be transferred by eating another planarian with this knowledge - can learn - hermaphroditic but not self-fertile (2 planarians fertilize each other at same time) - can divide in 2 (asexual reproduction) - can regenerate - Most common example is the planarian. ...
Lecture 13 - Northern Arizona University
... a. Flat, creeping forms - look amazingly like flatworms. b. identifiable by tentacles. c. Coeloplana ...
... a. Flat, creeping forms - look amazingly like flatworms. b. identifiable by tentacles. c. Coeloplana ...
Diapositiva 1 - Zanichelli online per la scuola
... Fertilization and the first phases of development During fertilization, the sperm cells enter the oocyte, thereby activating it. The two haploid nuclei of the gamete fuse together, generating a diploid zygote. A few hours after fertilization, the cleavage takes place: a series of mitotic divisions ...
... Fertilization and the first phases of development During fertilization, the sperm cells enter the oocyte, thereby activating it. The two haploid nuclei of the gamete fuse together, generating a diploid zygote. A few hours after fertilization, the cleavage takes place: a series of mitotic divisions ...
History and basic concepts
... developmental biology. In particular, the identification of genes controlling early embryogenesis in Drosophilahas led to the discovery of related genes being used in similar ways in the development of mammals and other vertebrates. Such discoveries encourageus to believe in the emergenceof general ...
... developmental biology. In particular, the identification of genes controlling early embryogenesis in Drosophilahas led to the discovery of related genes being used in similar ways in the development of mammals and other vertebrates. Such discoveries encourageus to believe in the emergenceof general ...
Animal Reproduction and Development
... • If sperm in oviduct at time of ovulation, fertilization takes place in oviduct. • 2 or more eggs released by ovaries - possible that all will be fertilized because of high number of sperm. • 2 separate eggs fertilized by 2 sperm, dizygotic (fraternal) twins produced ...
... • If sperm in oviduct at time of ovulation, fertilization takes place in oviduct. • 2 or more eggs released by ovaries - possible that all will be fertilized because of high number of sperm. • 2 separate eggs fertilized by 2 sperm, dizygotic (fraternal) twins produced ...
B6A-8 - De Anza
... mitotic spindle can be seen between the two cells that have just completed the second cleavage division. ...
... mitotic spindle can be seen between the two cells that have just completed the second cleavage division. ...
Drosophila embryogenesis
Drosophila embryogenesis, the process by which Drosophila (fruit fly) embryos form, is a favorite model system for geneticists and developmental biologists studying embryogenesis. The small size, short generation time, and large brood size make it ideal for genetic studies. Transparent embryos facilitate developmental studies. Drosophila melanogaster was introduced into the field of genetic experiments by Thomas Hunt Morgan in 1909.