Minggu, 16 Desember 2012

reproductive systems in Men and Women

rinary and reproductive systems in Men and Women
The term-term Needs to Know

    
Cranial = head, ventral = stomach, back = dorsal, caudal = tail.
    
Hereinafter called the area anterior cranial (front), caudal called the posterior (rear).
    
If from cranial to caudal midline is made, it can be differentiated medial region (middle) and lateral (side, the further away from the center).
    
Distal point far away from the body and proximal point closer to the body.


SYSTEM urinal

    
Forming part of the urine, which both kidneys
    
Parts supplier: renal tract, bladder and bladder.
    
Children are not classified as renal excretion tool.


KIDNEY

    
Composed of two pieces, shaped like a bean, located on the rear wall of the abdominal cavity height segments upper lumbar spine.
    
Left kidney is higher than the right kidney.
    
Urine formed in the renal pelvis collects filtering, which is a cavity located in the center of the kidney.


Ureters

    
The ureter crosses the pelvic (pelvic inlet) in front bifucartio iliaca communis, then headed to the caudal and dorsal ventral a. iliaca interna, until the area spina ischiadika, ureter turned into ventral and medial to lead to urinary vesicles at the lateral angle.
    
Place the mouth of the ureter into the urinary form of gallbladder wall slash (oblique) along approximately 1.9 cm, working as a valve.

Organizer stimulate growth

Organizer stimulate growth. Also called iductor, because of its growth induces a variety of tools and networks. Organizer or inductor is essentially pad mesoderm-derived tissues.
Exogastrulasi
With this exogastrulasi still growing notochord mesoderm, Somi and other derivatives .. whereas ectoderm could differentiate to form the neural tube. Endoderm could differentiate to form the stomach, intestines, liver, pancreas and other derivatives lainn seed layer.
Dentition
Teeth grow from the ectoderm and mesoderm. Ameloblast cells are derived from the ectoderm, growing enamel. Odontoblast are cells derived from the mesoderm (dermis layer of the mouth), grow a layer of dentin, pulp, cement, and periodontium.
Growth Matamata grew well in the presence of the inductor, we're not mesoderm, but the neural tube (ectoderm derivative). Eyepiece that rise from ectoderm, called the lens placode. But placode is not going to grow so the lens if the protrusion of the brain called the optic vesicle placode not come into contact with it.
Growth sarf and testis
For the neurulasi, forming the neural tube, it needs the presence of ectoderm mesoderm under the inductor. Differentiation sarf tube so that the forebrain, midbrain, hindbrain and spinal cord stem, also need the presence of mesoderm tissue around the tube section is concerned. Organogenesis Smell

Genital ridge containing

Genital ridge containing cells to develop gonads. Germ stem cells (primordium germ cells) come into the yolk sac of to become gametes. Nephrotome grow into kidney dam-line channel.
Hypomere
Somati mesoderm and splanchnic mesoderm will develop:

    
Pouch gill (branchial pouches) in the foregut pharynx. Gill sacs were paired, trained by endoderm inner, outer ectoderm and mesoderm in the middle.
    
Selaptu body cavity and binding equipment in: pericardium.pleura, peritoneum, mesentery. All membranes composed of flattened epithelial cells called mesothelium and connective tissue.


Differentiation
Mekanism differentiation-derivatives of all three germ layers influenced factors:
1. Core2. Cytoplasm3. Microenvironment4. physical5. Hormone

Organizer

Brain and spinal backs

Brain and spinal backs
    
Peripheral nerve brain spine dn
    
Sensory innervation parts, such as eyes, nose and touch
    
Chromatophore skin and organs are berpigment.

Bumbung mesoderm

      
Growing a wide variety of tools:

    
Connective tissue and supporting
    
Muscle: striated, plain and janutung
    
Masenkim which can differentiate into various kinds of cells and tissues. (There is also a bit of tube masenkim ectoderm epidermis)
    
Gonads, ducts and lymph-glands.
    
Kidney and urethral
    
layers of muscle and connective tissue (tunica muscularis, tunica adventitia, tunica muscularis mucosa and serosa) various channels in the body, such as digestion, sex, trachea, bronchi, and blood vessels.
    
Body cavity and the lining membranes of various tools: pleura, pericardium, peritoneum danmesenterium.
    
Connective tissue in tools such as the liver, pancreas, clogged gland.
    
Layer of dentin, cementum, and dental periodontium, together pulpanya.


At the beginning of happen oraganogenesis tube mesoderm differentiation following:
Epimere
Part sclerotome of somites form breakaway group of mesenchymal cells, moving to surround the notochord and the median dorsal neural tube surrounds,. Somites then re menyususn themselves into tube consists of 2 parts:
1. Dermatome, outer2. Myotome, next to the
Myocoel compartment called secondaryDermatome produce mesenchyme that will move downward to form the epidermis layer of the epidermis.
Mesomore

Organogenesis in the tube-tube

Organogenesis in the tube-tube
Bumbung epidermis
       
Growing:

    
Epidermal layer of skin, the derivatives are air-texture (susuna chemistry), horn: scales. Feathers, nails, horns, horns, spurs
    
Gland-skin glands: oil glands bulu.kelenjar sweat, salivary glands, mucous glands, tear glands
    
Lens of the eye, ear devices, senses smell and touch senses
    
Stomodeum grow up, with its derivatives such as enamel (email), teeth, salivary glands and taste senses.
    
Proctodeum, foster mutual anal glands that produce a pungent odor
    
Lapaisan tooth enamel.



 
Tube endoderm (metenteron)
      
Growing:

    
Selururh epithelial lining the digestive tract from the pharynx to the rectum
    
Kelenjer - digestive gland liver, pancreas, and mucous glands containing enzymes in the esophagus, gastric and intetinum.
    
Pulmonary epithelial layer or gills
    
Cloaca who finished third estuarine channel: discharge (ureters), the food (rectum), and sex (genital duct)
    
Vaginal epithelial layer, urethera, gallbladder and lymph-glands,

Organogenesis Smell

Organogenesis Smell - Organogenesis called morphogenesis. Primitp embryo grows into a definitive shape, and has the appearance of spesifek for families in a single animal species. Organogenesis combined two periods: between growth and final growth.

In pertumbuhsn ataua transition occurs between transformation and differentiation of the parts of the embryo daari primitive forms that become definitive form. While on embryo limits the growth period between the end of the tadpoles in animals, such as found in Evertebrata, Pisces Amphibians, pertumhuhan period between tingkta called tadpoles.

Transformation and Differentiation
Transformation and differentiation of the parts of the embryo the primitive form:

    
Extension and tube-tube growth that forms on tubulasi
    
Evaginasi and invagination certain areas sriap tube
    
Uneven growth in the various regions of guide
    
Transfer of cells from one tube to another tube or between the tube kerongga
    
Growth tool consists of various tissues, which come from various tube
    
Perorganisasi tools into systems: digestive system, blood peredarann, urogenitalia systems, and so on.
    
Completion of the outer shape (morphology, romance) embryos in detail, delicate and individual.

Natural vegetative reproduction

Natural vegetative reproduction
Reproduction of this type do not involve a mixture of human hands. Natural vegetative reproduction include the formation of buds, sugarcane, cassava stems, leaves cocor duck, laos

b. Artificial Vegetative Reproduction
Raproduksi human kind is intentionally done to obtain new plants bersifatnya same parent. The new plants taken from mother plants that have grown large, so that the new plant will quickly result in the same properties as the parent. The following describes examples of artificial vegetative growth.

2. Generative reproduction
Generative is that plant breeding is to breed in abundance, namely the convergence of male cells found in the stamens and female cells contained in the pistil. Meets 2 cells would eventually bear fruit with the seed in 2 that dikotil. Plants that were bred in this way usually have a genetic trait that is different from the parent plant and usually decline. The process of sexual reproduction requires a male and female gametes. The process of seed plants marriages preceded by pollination and continued with the process of fertilization. Reproduction In Plants