Paranasal Sinus Anatomy and Function January 2002
... not intended for clinical use in its present form. It was prepared for the purpose of stimulating group discussion in a conference setting. No warranties, either express or implied, are made with respect to its accuracy, completeness, or timeliness. The material does not necessarily reflect the curr ...
... not intended for clinical use in its present form. It was prepared for the purpose of stimulating group discussion in a conference setting. No warranties, either express or implied, are made with respect to its accuracy, completeness, or timeliness. The material does not necessarily reflect the curr ...
Role of Crosstalk Between Phosphatidylinositol 3
... Studies in zebrafish have provided a crucial general framework for understanding the key aspects of mechanistic understanding of artery–vein specification during embryogenesis. Indeed, many signaling events in zebrafish are faithfully recapitulated in higher vertebrates.19 Nonetheless, studies in ma ...
... Studies in zebrafish have provided a crucial general framework for understanding the key aspects of mechanistic understanding of artery–vein specification during embryogenesis. Indeed, many signaling events in zebrafish are faithfully recapitulated in higher vertebrates.19 Nonetheless, studies in ma ...
Urogenital System
... • The epithelium of the entire bladder is derived from the endoderm of the urogenital sinus. • As the mesonephric ducts are absorbed, the ureters come to open separately into the urinary bladder • In males, the orifices of the mesonephric ducts move close together and enter the prostatic part of the ...
... • The epithelium of the entire bladder is derived from the endoderm of the urogenital sinus. • As the mesonephric ducts are absorbed, the ureters come to open separately into the urinary bladder • In males, the orifices of the mesonephric ducts move close together and enter the prostatic part of the ...
Connective Tissue
... • The second most abundant cell type • Found in all connective tissue proper • Maintain the fibers of connective tissue proper ...
... • The second most abundant cell type • Found in all connective tissue proper • Maintain the fibers of connective tissue proper ...
1 The greater omentum is derived from which of the following
... adult structures. Among these are all of the postganglionic neurons of the autonomic nervous system and the sensory neurons of the peripheral nervous system. Ectoderm (choice A) forms the epidermis of the skin and the parenchymal cells of glands associated with the skin such as the sweat glands, seb ...
... adult structures. Among these are all of the postganglionic neurons of the autonomic nervous system and the sensory neurons of the peripheral nervous system. Ectoderm (choice A) forms the epidermis of the skin and the parenchymal cells of glands associated with the skin such as the sweat glands, seb ...
- studijní a informační středisko vfu brno
... type A spermatogonia. Subsequently, some type A cells divide, giving rise to type B spermatogonia, from which primary spermatocytes differentiate. In parallel, the sustentacular cells gradually achieve the characteristics of Sertoli cells. Sertoli cells lining the seminiferous tubules support and no ...
... type A spermatogonia. Subsequently, some type A cells divide, giving rise to type B spermatogonia, from which primary spermatocytes differentiate. In parallel, the sustentacular cells gradually achieve the characteristics of Sertoli cells. Sertoli cells lining the seminiferous tubules support and no ...
Radial secondary growth and formation of successive cambia and
... six cell layers outside the phloem produced by the previous cambium. During the development of new cambium, one or two parenchyma layers undergo repeated divisions and result in the formation of fiveto six-layered wide bands of meristematic cells. Initially, these cells are arranged irregularly, but ...
... six cell layers outside the phloem produced by the previous cambium. During the development of new cambium, one or two parenchyma layers undergo repeated divisions and result in the formation of fiveto six-layered wide bands of meristematic cells. Initially, these cells are arranged irregularly, but ...
spinal cord
... BY VERTEBRAE. THE VERTEBRAL COLUMN IS COMPOSED OF BONES, CARTILAGE AND MEMBRANOUS STRUCTURES AND GIVES HIGH-LEVEL PHYSICAL PROTECTION FOR THE SPINAL CORD WHICH HAS A SOFT AND VULNERABLE HISTOLOGICAL TEXTURE THE SPINAL CORD IS ENCLOSED BY THE MENINGES, BOTH THE PACHYMENINX AND THE LEPTOMENINX TAKE PA ...
... BY VERTEBRAE. THE VERTEBRAL COLUMN IS COMPOSED OF BONES, CARTILAGE AND MEMBRANOUS STRUCTURES AND GIVES HIGH-LEVEL PHYSICAL PROTECTION FOR THE SPINAL CORD WHICH HAS A SOFT AND VULNERABLE HISTOLOGICAL TEXTURE THE SPINAL CORD IS ENCLOSED BY THE MENINGES, BOTH THE PACHYMENINX AND THE LEPTOMENINX TAKE PA ...
PDF
... that a smaller or larger portion of the tip of the notochord was absent. In other cases the rostral end of the notochord was split into two or was club-shaped. A combination of a split and a club ending has also been seen. In one case the end was connected with the rest of the notochord by only a th ...
... that a smaller or larger portion of the tip of the notochord was absent. In other cases the rostral end of the notochord was split into two or was club-shaped. A combination of a split and a club ending has also been seen. In one case the end was connected with the rest of the notochord by only a th ...
ON THE DEVELOPMENT OF THE TUSSER, ANTHERAEA PERNYI
... appears as a delicate pink cloud among the greyish yolk spheres. These nuclei soon divide rapidly and give rise to many smaller nuclei which are scattered in the yolk around the micropyle pole. The nuclei are surrounded also by a small mass of cytoplasm, and protoplasmic continuity seems to exist be ...
... appears as a delicate pink cloud among the greyish yolk spheres. These nuclei soon divide rapidly and give rise to many smaller nuclei which are scattered in the yolk around the micropyle pole. The nuclei are surrounded also by a small mass of cytoplasm, and protoplasmic continuity seems to exist be ...
The ethmoid bone: clinical imaging anatomy from an embryological
... Seydel divided the ethmoturbinals into "Basallamelle" and "Einrollungen", which are named as the lamina basilaris (basal lamellae) and lamina recurvata by Killian, respectively (Fig 4)[4]. The lamina basilaris forms part of the attachment of the ethmoturbinals to the lateral wall of the nasal cavity ...
... Seydel divided the ethmoturbinals into "Basallamelle" and "Einrollungen", which are named as the lamina basilaris (basal lamellae) and lamina recurvata by Killian, respectively (Fig 4)[4]. The lamina basilaris forms part of the attachment of the ethmoturbinals to the lateral wall of the nasal cavity ...
Cells, Tissues, Organs, and Systems [CATCH FIGURE PUO10A
... affectionately call them “water bears” because of their short legs and slow movement. (The word tardigrade comes from Latin words that mean “slow walker.”) Other people prefer to call them “moss piglets,” because they are often found living on the moist surface of mosses. So far, 26 different specie ...
... affectionately call them “water bears” because of their short legs and slow movement. (The word tardigrade comes from Latin words that mean “slow walker.”) Other people prefer to call them “moss piglets,” because they are often found living on the moist surface of mosses. So far, 26 different specie ...
Chapter 50 - Tripod.com
... The clinical significance of the paranasal sinuses is well known to anyone who has suffered from acute or chronic sinusitis. The functional significance of the sinuses has, however, eluded physiologists and physicians alike since the sinuses were first described some 1800 years ago. Blanton and Bigg ...
... The clinical significance of the paranasal sinuses is well known to anyone who has suffered from acute or chronic sinusitis. The functional significance of the sinuses has, however, eluded physiologists and physicians alike since the sinuses were first described some 1800 years ago. Blanton and Bigg ...
Marginal zone cells-the primitive streak
... At stage 3 + H & H which is about two-thirds of a PS the removal of the hypoblast no longer has any effect on the epiblast, the inductive process is completed and development can continue undisturbed. It is interesting that after the removal of the hypoblast in young PS stages (2-3 H & H), there was ...
... At stage 3 + H & H which is about two-thirds of a PS the removal of the hypoblast no longer has any effect on the epiblast, the inductive process is completed and development can continue undisturbed. It is interesting that after the removal of the hypoblast in young PS stages (2-3 H & H), there was ...
HISTOLOGY— THE STUDY OF TISSUES
... were not stained, most tissues would appear pale gray. With stains that bind to different components of a tissue, however, you may see pink cytoplasm; violet nuclei; and pink, blue, green, or golden brown protein fibers, depending on the stain used. When viewing such sections, you must try to transl ...
... were not stained, most tissues would appear pale gray. With stains that bind to different components of a tissue, however, you may see pink cytoplasm; violet nuclei; and pink, blue, green, or golden brown protein fibers, depending on the stain used. When viewing such sections, you must try to transl ...
Dr.Kaan Yücel yeditepeanatomyfhs122.wordpress.com Spinal cord
... The nervous system comprises the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is surrounded and protected by the skull (neurocranium) and vertebral column and consists of the brain and the spinal cord. The PNS exists primarily outside these bony structures. The entir ...
... The nervous system comprises the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is surrounded and protected by the skull (neurocranium) and vertebral column and consists of the brain and the spinal cord. The PNS exists primarily outside these bony structures. The entir ...
Slide 1
... postnatally. By the sixth month of gestation about 7 million oocytes and oogonia are present in the ovaries. By the time of birth this number is reduced to about 2 million. Of these only about 400.000 survive until puberty. Atresia is also the mode of destruction of follicles whose maturation is ini ...
... postnatally. By the sixth month of gestation about 7 million oocytes and oogonia are present in the ovaries. By the time of birth this number is reduced to about 2 million. Of these only about 400.000 survive until puberty. Atresia is also the mode of destruction of follicles whose maturation is ini ...
A primer on the mouse basal body
... are useful for modeling many aspects of human basal body function. For example, some ciliopathies, such as primary ciliary dyskinesia (PCD) and Meckel syndrome (MKS), are well modeled by mouse mutations in orthologous genes [2–4]. However, other ciliopathies such as nephronophthisis (NPHP) and Joube ...
... are useful for modeling many aspects of human basal body function. For example, some ciliopathies, such as primary ciliary dyskinesia (PCD) and Meckel syndrome (MKS), are well modeled by mouse mutations in orthologous genes [2–4]. However, other ciliopathies such as nephronophthisis (NPHP) and Joube ...
INTRODUCTION TO TISSUE
... closely packed bundles of collagen fibers running in the same direction and makes up tendons and ligaments – Dense irregular connective tissue contains thick bundles of collagen fibers arranged in an irregular fashion, and is found in the dermis ...
... closely packed bundles of collagen fibers running in the same direction and makes up tendons and ligaments – Dense irregular connective tissue contains thick bundles of collagen fibers arranged in an irregular fashion, and is found in the dermis ...
Document
... Tissues Working Together, continued • A group of organs working together to perform a particular function is called an organ system. Each organ system has a specific job in the body. • Examples of organ systems are the digestive system, the respiratory system, and the cardiovascular system. • Exampl ...
... Tissues Working Together, continued • A group of organs working together to perform a particular function is called an organ system. Each organ system has a specific job in the body. • Examples of organ systems are the digestive system, the respiratory system, and the cardiovascular system. • Exampl ...
The Life Cycle 12. - mt
... Stamen is made up of ....................... and ....................... . If pollen is transferred from one flower to the flower of another plant of the same species, it is known as ....................... . One male gamete fuses with the egg cell to form ....................... . The second male g ...
... Stamen is made up of ....................... and ....................... . If pollen is transferred from one flower to the flower of another plant of the same species, it is known as ....................... . One male gamete fuses with the egg cell to form ....................... . The second male g ...
Expression of axial and sonic hedgehog in wildtype and midline
... The complex organization of the vertebrate body is established during embryogenesis by a series of embryonic inductions (for review see Slack, 1991). One of the best characterized examples of such a process is the induction of floor plate differentiation in the ventral neural tube by the underlying ...
... The complex organization of the vertebrate body is established during embryogenesis by a series of embryonic inductions (for review see Slack, 1991). One of the best characterized examples of such a process is the induction of floor plate differentiation in the ventral neural tube by the underlying ...
Ear Embryology - Juniper Publishers
... Exposure to excess retinoic acid or derivatives commonly results in anomalies of the external ear (Figure 26). ...
... Exposure to excess retinoic acid or derivatives commonly results in anomalies of the external ear (Figure 26). ...
Behavioral Objectives
... grow older, it may be that more cells age and die. Also, some cell lines may die before that maximum number of cell divisions has been reached. In addition, offspring of long-lived people also tend to be long-lived. Some people may have genes that code for efficient enzymes that remove free radicals ...
... grow older, it may be that more cells age and die. Also, some cell lines may die before that maximum number of cell divisions has been reached. In addition, offspring of long-lived people also tend to be long-lived. Some people may have genes that code for efficient enzymes that remove free radicals ...
An Introduction to Tissues
... • 4-4 Compare the structures and functions of the various types of connective tissues. • 4-5 Describe how cartilage and bone function as a supporting connective tissue. • 4-6 Explain how epithelial and connective tissues combine to form four types of tissue membranes, and specify the functions of ea ...
... • 4-4 Compare the structures and functions of the various types of connective tissues. • 4-5 Describe how cartilage and bone function as a supporting connective tissue. • 4-6 Explain how epithelial and connective tissues combine to form four types of tissue membranes, and specify the functions of ea ...
Embryonic stem cell
Embryonic stem cells (ES cells) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage preimplantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization, at which time they consist of 50–150 cells. Isolating the embryoblast or inner cell mass (ICM) results in destruction of the blastocyst, which raises ethical issues, including whether or not embryos at the pre-implantation stage should be considered to have the same moral or legal status as more developed human beings.Human ES cells measure approximately 14 μm while mouse ES cells are closer to 8 μm.