The ethmoid bone: clinical imaging anatomy from an embryological
... pathways from the frontal and maxillary sinuses (ostiomeatal complex). It contains the ethmoid air cells, which play an important role in olfactory sensation, humidification, ventilation, and phonation. The ethmoid bone consists of 4 parts: the perpendicular plate, cribriform plate, and 2 ethmoidal ...
... pathways from the frontal and maxillary sinuses (ostiomeatal complex). It contains the ethmoid air cells, which play an important role in olfactory sensation, humidification, ventilation, and phonation. The ethmoid bone consists of 4 parts: the perpendicular plate, cribriform plate, and 2 ethmoidal ...
Roundworms - Advanced
... • phasmid: One of a pair of circular depressions situated laterally at the posterior end of nematodes and believed to be chemoreceptors. • pseudocoelom: A partially developed, fluid-filled body cavity that is lined with mesoderm only on the ectodermal side. Summary ...
... • phasmid: One of a pair of circular depressions situated laterally at the posterior end of nematodes and believed to be chemoreceptors. • pseudocoelom: A partially developed, fluid-filled body cavity that is lined with mesoderm only on the ectodermal side. Summary ...
Lecture 22: Female Pelvic Viscera: Introduction to the Female
... cervical) ligaments, and the uterosacral ligaments The round and ovarian ligaments—remnants of the gubernaculum—offer additional support Position of the Uterus Variation in Position Background The uterus is possibly the most dynamic structure in the human body Several factors can influen ...
... cervical) ligaments, and the uterosacral ligaments The round and ovarian ligaments—remnants of the gubernaculum—offer additional support Position of the Uterus Variation in Position Background The uterus is possibly the most dynamic structure in the human body Several factors can influen ...
Unit 2 Cells and Tissues Part 2 notes
... 19. Identify the four types of tissue membranes found in the body. 20. How does a plasma (cell) membrane differ from a tissue membrane? 21. What is the function of fluids produced by serous membranes? 22. The lining of the nasal cavity is normally moist, contains numerous mucous cells, and rests on ...
... 19. Identify the four types of tissue membranes found in the body. 20. How does a plasma (cell) membrane differ from a tissue membrane? 21. What is the function of fluids produced by serous membranes? 22. The lining of the nasal cavity is normally moist, contains numerous mucous cells, and rests on ...
Topography and Structure of Corpus striatum in Insectívora
... putamen. The boundary between the putamen and the Na are rot numerous fascicles of fibres running horizontally from the anterior commissure to the external capsule. At this level the cells of the ventral part of the caudate nucleus penetrate into the space between the lateral ventricle and the anter ...
... putamen. The boundary between the putamen and the Na are rot numerous fascicles of fibres running horizontally from the anterior commissure to the external capsule. At this level the cells of the ventral part of the caudate nucleus penetrate into the space between the lateral ventricle and the anter ...
Three-Dimensional Volumetric Display of the Nasal Ostiomeatal
... the frontal sinus; these cells are the most anterior cells in the anterior ethmoidal sinus complex and are aerated to various degrees in virtually everyone. The agger nasi cells border the nasal bone anteriorly and the middle turbinate medially, and the uncinate process adheres to their lateral bord ...
... the frontal sinus; these cells are the most anterior cells in the anterior ethmoidal sinus complex and are aerated to various degrees in virtually everyone. The agger nasi cells border the nasal bone anteriorly and the middle turbinate medially, and the uncinate process adheres to their lateral bord ...
9 - The application of population genomics to fisheries management
... 1. Both phyla have developed two well-defined germ layers, ectoderm and endoderm; a third, or mesodermal, layer, which is derived embryologically from ectoderm, is present in some. The body plan is saclike, and the body wall is composed of two distinct layers, epidermis and gastrodermis, derived from ...
... 1. Both phyla have developed two well-defined germ layers, ectoderm and endoderm; a third, or mesodermal, layer, which is derived embryologically from ectoderm, is present in some. The body plan is saclike, and the body wall is composed of two distinct layers, epidermis and gastrodermis, derived from ...
CLINICAL NOTES REQUIRED FOR CAT3
... candidate region for CDH was reported to be chromosome 15q26. Moreover, fetal lung maturation may be delayed. CDH is the most common cause of pulmonary hypoplasia. Polyhydramnios (excess amniotic fluid) may also be present. CDH, usually unilateral, results from defective formation and/or fusion of t ...
... candidate region for CDH was reported to be chromosome 15q26. Moreover, fetal lung maturation may be delayed. CDH is the most common cause of pulmonary hypoplasia. Polyhydramnios (excess amniotic fluid) may also be present. CDH, usually unilateral, results from defective formation and/or fusion of t ...
Parotid gland – Anatomy & tumours
... Innervates muscles of facial expression from their deep surface; except mentalis, buccinator and levator anguli oris which all lie deep to CN VII ...
... Innervates muscles of facial expression from their deep surface; except mentalis, buccinator and levator anguli oris which all lie deep to CN VII ...
L13-vestibulocochlear pathways2014-08-23 10
... dorsal & ventral cochlear nuclei in pons. • Cochlear nuclei belong to special somatic afferent column in brain stem. • On ascending, most of axons decussate in the trapezoid body & form lateral ...
... dorsal & ventral cochlear nuclei in pons. • Cochlear nuclei belong to special somatic afferent column in brain stem. • On ascending, most of axons decussate in the trapezoid body & form lateral ...
L12- CN VIII (vestibulocochlear pathways)
... dorsal & ventral cochlear nuclei in pons. • Cochlear nuclei belong to special somatic afferent column in brain stem. • On ascending, most of axons decussate in the trapezoid body & form lateral ...
... dorsal & ventral cochlear nuclei in pons. • Cochlear nuclei belong to special somatic afferent column in brain stem. • On ascending, most of axons decussate in the trapezoid body & form lateral ...
GENERAL ZOOLOGY
... In the case of multiple fission, or schizogony, repeated nuclear divisions occur in a common mass of cytoplasm, followed by cleavage into numerous offspring each with a nucleus. Schizogony is especially well developed in some Sporozoa. Sexual. Sexual reproduction occurs in all major groups of protoz ...
... In the case of multiple fission, or schizogony, repeated nuclear divisions occur in a common mass of cytoplasm, followed by cleavage into numerous offspring each with a nucleus. Schizogony is especially well developed in some Sporozoa. Sexual. Sexual reproduction occurs in all major groups of protoz ...
surgical anatomy for endoscopic sphenoethmoidectomy
... anterior and posterior ethmoid cells. ◦ Pneumatization of the suprabullar recess: insertion of basal lamella to skull base superiorly is located posterior to nferior part of oblique segment ◦ Pneumatization of retrobullar recess: inferior part of basal lamella assumes a more posterior position a ...
... anterior and posterior ethmoid cells. ◦ Pneumatization of the suprabullar recess: insertion of basal lamella to skull base superiorly is located posterior to nferior part of oblique segment ◦ Pneumatization of retrobullar recess: inferior part of basal lamella assumes a more posterior position a ...
eprint_10_28134_200
... Following ovulation the oocyte is passed into the oviducts where fertilization occurs. In the mare, the fertilized egg remains in the oviduct approximately 6 days before entering the uterus. After the embryo enters the uterus, it must migrate through the entire uterus until it becomes fixed, genera ...
... Following ovulation the oocyte is passed into the oviducts where fertilization occurs. In the mare, the fertilized egg remains in the oviduct approximately 6 days before entering the uterus. After the embryo enters the uterus, it must migrate through the entire uterus until it becomes fixed, genera ...
26 slides
... Connective tissue remains mitotic and forms repair (scar) tissue With some exceptions, muscle tissue becomes amitotic by the end of puberty Nervous tissue becomes amitotic shortly after birth. ...
... Connective tissue remains mitotic and forms repair (scar) tissue With some exceptions, muscle tissue becomes amitotic by the end of puberty Nervous tissue becomes amitotic shortly after birth. ...
Gastro17-GITractPt1
... Clinical Vignette: If a patient has a gall bladder stone and it gets inflamed and perforates posteriorly, the stones can get inside the duodenum. If the stone is large enough, it can obstruct the duodenum. It also stains the anterior surface of the duodenum postmortem Neck of the pancreas is l ...
... Clinical Vignette: If a patient has a gall bladder stone and it gets inflamed and perforates posteriorly, the stones can get inside the duodenum. If the stone is large enough, it can obstruct the duodenum. It also stains the anterior surface of the duodenum postmortem Neck of the pancreas is l ...
respiratory system - Appoquinimink High School
... Just inside each nostril is an expanded VESTIBULE containing coarse hairs. ...
... Just inside each nostril is an expanded VESTIBULE containing coarse hairs. ...
File - Wk 1-2
... A retroverted uterus is a uterus that is tilted backwards towards the spine instead of forwards. One in about 3-5 women have a retroverted uterus. A slightly ‘anteverted’ uterus is more common and is tipped forwards towards the bladder with the anterior end slightly concave. A retroverted uterus is ...
... A retroverted uterus is a uterus that is tilted backwards towards the spine instead of forwards. One in about 3-5 women have a retroverted uterus. A slightly ‘anteverted’ uterus is more common and is tipped forwards towards the bladder with the anterior end slightly concave. A retroverted uterus is ...
Portland Community College, Sylvania Campus
... TO SPEND TIME WITH THE MODELS! Some labs will have exercises that are required. Please make sure that you understand what was learned in these exercises because these are also fair game to be used for questions in the tests. Each lab will start with a 10 point quiz. You are required to be in attenda ...
... TO SPEND TIME WITH THE MODELS! Some labs will have exercises that are required. Please make sure that you understand what was learned in these exercises because these are also fair game to be used for questions in the tests. Each lab will start with a 10 point quiz. You are required to be in attenda ...
ANATOMICAL FEATURES OF THE ENDOCRINE GLANDS
... About 25g in weight and is enclosed by pretracheal fascia has two symmetrical lobes united by isthmus. Isthmus joins anterior surface of the lobes at their lower part, lies in front 2nd, 3rd and 4th tracheal rings. Pretracheal fascia is here fixed between them (It moves gland up and down during swal ...
... About 25g in weight and is enclosed by pretracheal fascia has two symmetrical lobes united by isthmus. Isthmus joins anterior surface of the lobes at their lower part, lies in front 2nd, 3rd and 4th tracheal rings. Pretracheal fascia is here fixed between them (It moves gland up and down during swal ...
Chapter 27 Student Notes
... PRINCIPLES OF EMBRYONIC DEVELOPMENT Fertilization results in a zygote and triggers embryonic development ...
... PRINCIPLES OF EMBRYONIC DEVELOPMENT Fertilization results in a zygote and triggers embryonic development ...
File
... of maxillary bone. Roof is formed by floor of orbit, and Floor is related to roots of the premolars and molar teeth. The maxillary sinus opens into middle meatus of nose through hiatus semilunaris. Frontal Sinuses: are contained within frontal bone and separated from each other by a bony septum. Eac ...
... of maxillary bone. Roof is formed by floor of orbit, and Floor is related to roots of the premolars and molar teeth. The maxillary sinus opens into middle meatus of nose through hiatus semilunaris. Frontal Sinuses: are contained within frontal bone and separated from each other by a bony septum. Eac ...
NSS 211 - National Open University of Nigeria
... centre for this course. The assignment counts towards 40% of the total course mark. You should be able to complete your assignments from the information and materials contained in your reading and study units. However, it is desirable to demonstrate that you have read and researched more widely than ...
... centre for this course. The assignment counts towards 40% of the total course mark. You should be able to complete your assignments from the information and materials contained in your reading and study units. However, it is desirable to demonstrate that you have read and researched more widely than ...
Human embryogenesis
Human embryogenesis is the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one celled zygote to an adult human being. Fertilisation occurs when the sperm cell successfully enters and fuses with an egg cell (ovum). The genetic material of the sperm and egg then combine to form a single cell called a zygote and the germinal stage of prenatal development commences. Embryogenesis covers the first eight weeks of development and at the beginning of the ninth week the embryo is termed a fetus.Human embryology is the study of this development during the first eight weeks after fertilisation. The normal period of gestation (pregnancy) is nine months or 38 weeks.The germinal stage, refers to the time from fertilization, through the development of the early embryo until implantation is completed in the uterus. The germinal stage takes around 10 days.During this stage, the zygote, which is defined as an embryo because it contains a full complement of genetic material, begins to divide, in a process called cleavage. A blastocyst is then formed and implanted in the uterus. Embryogenesis continues with the next stage of gastrulation when the three germ layers of the embryo form in a process called histogenesis, and the processes of neurulation and organogenesis follow. The embryo is referred to as a fetus in the later stages of prenatal development, usually taken to be at the beginning of the ninth week. In comparison to the embryo, the fetus has more recognizable external features, and a more complete set of developing organs. The entire process of embryogenesis involves coordinated spatial and temporal changes in gene expression, cell growth and cellular differentiation. A nearly identical process occurs in other species, especially among chordates.