Navigation Links


tubules in Biological Definition

Kidney

... the water in the filtrate enters the convoluted tubules and collecting ducts by osmosis. Fluid flows ... Fluids become more concentrated along the tubules and ducts to form urine , which is then drained ... medulla. They contain the secreting apparatus and tubules and are also called malpighian pyramids . ...

Excretion

... salt through the tear ducts associated with the eyes. Such birds can drink sea water without harm. In insects , a system involving Malpighian tubules is utilized to excrete metabolic waste. Metabolic waste diffuses or is actively transported into the tubule, which transports the wastes to the ...

Marcello Malpighi

... him, including a skin layer (Malpighi layer ) and two different Malpighian corpuscles in the kidneys and the spleen , as well as the Malpighian tubules in the excretory system of insects. He also studied chick embryo development with detailed drawings and discovered taste buds of human ....

Sperm

... cell is characterized by a minimum of cytoplasm. Sperm production Main article: Spermatogenesis Sperm are produced in the seminiferous tubules of the testes in a process called spermatogenesis. Round cells called spermatogonia divide and differentiate eventually to become sperm. During ...

Spermatogenesis

... and capacitation (initiation of the acrosome reaction) of the sperm cells so viability is maintained. Spermatozoa are produced in seminiferous tubules in the testes . They start off as spermatogonia , undergoing mitosis becoming a type A spermatogonium or a type B spermatogonium. Type B ...

Tumor

... cell carcinoma basal cell (only in skin): basal cell carcinoma glandular epithelium: adenoma , cystadenoma , adenocarcinoma tubules epithelium (kidney): renal tubular adenoma , renal cell carcinoma (Grawitz tumor ) hepatocytes: hepatocellular adenoma , hepatocellular ...
Other Contentsvisualvisualvisualvisualvisualvisualvisualvisualvisualhumorhumorhumorvitreousvitreousvitiligovomitingvomitingvomitingvomitingvulvitisvonvonvonvonvonvonvonvon
(Date:11/6/2009)...A (November 06, 2009) The Monell Center and the C...he Beijing International Meeting on Taste and Smel...ith the CAS, the meeting will be the first interna...ina. , Alan Leshner, Chief Executive Officer, Am...and Executive Publisher of Science magazine, will ...
(Date:11/5/2009)...Conn.Researchers at Yale University have developed...,s immune response to HIV and HIV-infected cells, ...s, published online in the Journal of the America...ic approaches for these diseases. , The molecul... HIV" (ARM-H) and "antibody-recruiting molecule ta...
(Date:11/4/2009)...A Although scientists are reluctant to officially...evidence continues to grow about its protective ef...in Cancer Prevention Research , a journal of the ...ggests some reduction in oral cancer. , Vassili... in the Department of Thoracic/Head and Neck Medic...
Breaking Biology News(10 mins):Monell Center joins with CAS to host Beijing meeting on taste and smell research 2New synthetic molecules trigger immune response to HIV and prostate cancer 2Does green tea prevent cancer? Evidence continues to brew, but questions remain 2SpectraScience Engages European Contract Research Organization to Manage Clinical Trials 14457 1SpectraScience Engages European Contract Research Organization to Manage Clinical Trials 14457 2SpectraScience Engages European Contract Research Organization to Manage Clinical Trials 14457 3Global Bioenergies is Setting Up its Scientific Advisory Board and Obtains Proof of Concept for a Bioprocess Generating Gaseous Hydrocarbons From Rene 14455 1Global Bioenergies is Setting Up its Scientific Advisory Board and Obtains Proof of Concept for a Bioprocess Generating Gaseous Hydrocarbons From Rene 14455 2Amylin Pharmaceuticals to Webcast Third Quarter Results 14453 1Amylin Pharmaceuticals to Webcast Third Quarter Results 14453 2
(Date:11/9/2009)... New study highlights positive influence of spo... Rosemont, IL (Vocus) November 9, 2009 --...decreases. Recent research has highlighted the imp...p prevent these issues. However, a new study publi...lth: A Multidisciplinary Approach reveals that th...
(Date:11/9/2009)...lif., Nov. 9 Actress Mariska Hargi...hilosophy on Saturday to raise awareness about t...oughout California by building healing and wellnes...were created to give one to each of the estimated ...eles County,s domestic violence shelters. ,, "O...
(Date:11/9/2009)... Names 2010 National Ambassador ,, WHITE PLAI... Hoffman of Weston, Fla., was born so early and wi...d not say whether he would survive -- or if he wou...-old was named March of Dimes 2010 National Ambass...s, "My first minutes of motherhood and I was compl...
(Date:11/9/2009)... For the third consecuti...s been selected the most preferred hospital for ca...rvey by the National Research Corporation. ,, ...106/KARMANOSLOGO ) ,, The annual survey was co...tember 2008 and August 2009. Survey respondents we...
(Date:11/9/2009)...me people went from incapacitated to working again... -- Electrical stimulation of a certain area of th...e depression, say German researchers. , They im...f the brains of 10 people. This area of the brain...ople remember good experiences and puts them in a ...
Breaking Medicine News(10 mins):Health News:High Impact Sports Participation May Improve Bone Mineral Density in Mature Athletes 2Health News:Actress Mariska Hargitay and the Joyful Heart Foundation Join philosophy to Serve Women in Crisis Throughout Los Angeles County 2Health News:Actress Mariska Hargitay and the Joyful Heart Foundation Join philosophy to Serve Women in Crisis Throughout Los Angeles County 3Health News:Six-Year-Old Survivor Fights for Preemies Like Himself 2Health News:Six-Year-Old Survivor Fights for Preemies Like Himself 3Health News:Karmanos Cancer Center Most Preferred Hospital for Cancer Care in Southeast Michigan, Third Consecutive Year 2Health News:Brain Stimulation May Ease Treatment-Resistant Depression 2
Other TagsOther Tagsstays 2stays 3stays 4facts 2each 2each 3each 4each 5each 6each 7each 8each 9each 10appearance 2appearance 3appearance 4appearance 5