Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Protonephridia - Excretion
Protonephridia are more primitive and occur mainly in acoelomate and pseudocoelomates animals. An animal may have two or more extensively branched protonephridia, each internally terminating in several bulb-like structures called flame cells or flame bulbs. In the lumen of each flame cell is found a tuft of cilia.
Figure: Excretory system of planarian
Flame cells are common in flatworms and nemertines. In some of the coelomate worms that have protonephridia (e.g., polychaetes), the flame bulbs are Excretory pore replaced by a solenocytes. The solenocytes have a single flagellum projecting into the lumen instead of the ciliary tuft as found in the flame cells. It has been suggested that the undulating movements of the ciliary tuft or flagellum generate sufficient negative pressure for filtration and the force required to propel the fluid through the tubules. Flame cell system functions in animals without a circulatory system and pick up substances only from the tissue fluids.
How VIBRIO PARAHAEMOLYTICUS spread in humans Associated foods:- Vehicle foods for outbreak are raw, improperly cooked, or cooked recontaminated seafoods, such as, oysters, s
Q. How is the circulatory system of reptiles characterized? What is the basic difference between the amphibian and the reptile heart? The circulatory system of beings of the cl
Explain the Steps for Injecting Insulin Injection It is important to teach patient to take injections at regular times, 30 to 60 minutes before meals. Take insulin everyday, ev
Define Stripping Perforation - Types of Root Perforation It is latral perforation caused by over instrumentation through a thin wall of the root. Most common on the in
Preparation on the Morning of Surgery Morning care Hygiene Bowel and bladder emptying. Oral hygiene, remove dentures if any, no lipstick. Comb and make th
A mother has brought her 2-week-old infant to the emergency department due to the baby's persistent and increasing jaundice. Blood testing reveals that the infant's unconjugated bi
#what is LH#
Explain the Solubility in Water of dietary fibre? Fibres that dissolve in hot water are soluble and those that do not, are insoluble. Several structural features affect solubil
Define the Integrity of gut or colon? Dietary fibre especially fermentable fibres play an important role in maintaining the integrity of gut. SCFAs generated during fermentatio
What is the meaning of Body composition? It refers primarily to the distribution of muscle, fat, bone and other tissues in the body, and its measurement is often considered as
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd