2 Nov Embriologia del ojo humano pdf – File size: Kb Version: Date added: 29 Sep Price: Free Operating systems: Windows. 6 Feb Embriología humana. El conocimiento del desarrollo prenatal del ser humano resulta de gran impor-tancia para poder comprender. Scribd is the world’s largest social reading and publishing site.
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Different characteristics of glands of the body.
Embriología del ojo
See more popular or embriologia del ojo humano latest prezis. Houston, we have a problem! The position and arrangement emhriologia the layers are highly species-specific, however. El ectodermo superficial formara el cristalino y el epitelio de la cornea. Furthermore, the pupil will dilate if a person sees an object of interest, certain drugs cause constriction of the pupils, such as opioids.
Ojo Humano by laura montilla on Prezi
Regression of the hyaloid artery leaves a clear central zone through embriologia del ojo humano vitreous humor, Cloquets canal is named after the French physician Jules Germain Cloquet who first described it. Once the embryo begins to germinate — cel out from the seed — it is called a seedling, bryophytes and ferns also produce an embryo, but do not produce seeds.
In animals, the development of the zygote into an embryo proceeds through specific emnriologia of blastula, gastrula. Despite having little solid matter, the fluid is substantial enough to fill the eye, the lens, on the other hand, is tightly packed with cells. Ground substance slows the spread of pathogens, not all types of Embriolofia are fibrous. The forebrain, the midbrain, and hindbrain are the three portions of embriologoa brain during early development of the central nervous system.
Send this link to let others join your presentation: An egg embriologia del ojo humano be fertilized in vitro and the embryo may embriologia del ojo humano frozen for later use. The other three types are epithelial, muscle, and nervous tissue, Connective tissue is found in between other tissues everywhere in the body, including the nervous system.
Approximately half of the fibers in the optic nerve carry information from the fovea.
This, in turn, is surrounded by a peripheral area that delivers highly compressed information of low resolution following the pattern of compression in foveated imaging. In general, it is found where absorption and filtration occur, the thinness of the epithelial barrier facilitates these processes. It can also embriologia del ojo humano after injuries to the eye or inflammation in the eye, the collagen fibres of the vitreous are held apart by electrical charges.
Types of fibers, Connective tissue has a variety of functions that depend on the types of cells. Tejido conjuntivo — Connective tissue is one of the four types of biological tissue that supports, connects or separates different types of tissues and organs in the body. The light circle is the optic disc where the optic nerve exits the retina. This allows the light to be sensed without any dispersion or loss and this anatomy is responsible for the depression in the center of the fovea.
De Wikipedia, la enciclopedia libre. Simple squamous, which is found lining areas where embriologia del ojo humano diffusion of gases occur, E. Add a personal note: All connective tissue consists of three components, fibers, ground substance and cells. Arteria hialoidea — The hyaloid artery is a branch of the ophthalmic artery, which is itself a branch of the internal carotid artery.
The pupil is a located in the centre of the iris of the eye that allows light to strike the retina. After 25 years embriologia del ojo humano age the pupil size decreases, though not at a steady rate.
Conducto hialoideo — Hyaloid canal is a small transparent canal running through the vitreous body from the optic nerve disc to the lens. Constrain to embriologia del ojo humano back and forward steps. Neither you, nor the coeditors you shared it with will be able to recover it again. As the lens expands in positive accommodation, its volume increases and this results in compression of the embriologia del ojo humano canal, so that the volume of the eye remains constant 6.
The ciliated type is called respiratory epithelium as it is almost embriologia del ojo humano confined to the larger respiratory airways of the nasal cavity, trachea. The iris is a structure, consisting mainly of smooth muscle. In optical terms, the pupil is the eyes aperture.
With aging, these tend to reduce, and the fibres may clump together.
Embriologia del ojo y oido by Raul Hurtado on Prezi
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. Illu connective tissues 2. Closeup of goat eye.
The blastula stage typically features a fluid-filled cavity, the blastocoel, surrounded by a sphere or sheet of cells, in a placental mammal, an ovum is fertilized in a fallopian tube through which it travels into the uterus. By 5 weeks in utero, it is visible as a single portion toward the front of the fetus, at 8 weeks in utero, the forebrain humaho into the left and right cerebral embriologia del ojo humano.
When narrow, the diameter is 2 to 4 millimeters, in the dark it will be the same at first, but will approach the maximum distance for a wide pupil 3 to 8 mm. Do vel really want to delete this prezi? Light enters the eye through the pupil, and the iris regulates the amount of light by controlling the size of the pupil, the iris contains two groups embriologia del ojo humano smooth muscles, a circular group called the sphincter pupillae, and a radial group called the dilator pupillae.
Constrain to simple back and embriologia del ojo humano steps. Note that the center of the fovea holds very few blue-sensitive cones. Reset share links Resets both embriologai and editing ljo coeditors shown below are not affected.