Heart in fishes, Biology

Assignment Help:

Fishes -

  1. Heart is 2 chambered 1 auricle & 1 ventricle present. Sinus venosus, truncus or conus arteriusus present.
  2. Only impure blood come in heart so heart is venous heart or brachial heart.
  3. Single circulation present i.e. blood comes in heart only once in one complete circulation.
  4. An advantage of single ciruclation is that entire body receives pure blood. A disadvantage is that the narrow gill capillaries slow down the flow of blood and body receives blood at the low pressure.

Note :- In lung fishes heart is 3 chambered.

772_Fish heart.png


Related Discussions:- Heart in fishes

Historical example for scaling from individual to ecosystems, Define Histor...

Define Historical example for scaling from individual to ecosystems? Biological oceanographers have long utilized physiologically based models like the Droop model, which reduc

Why is it advantageous to have weak hydrogen bonds, Why is it advantageous ...

Why is it advantageous to have weak hydrogen bonds among complementary bases and strong covalent bonds among phosphate and Deoxyribose groups in a DNA molecule? The hydrogen bo

What is the absolute pressure at the bottom of the container, A container i...

A container is filled to a depth of 20.0 cm with water. On top of the water floats a 30.0-cm-thick layer of oil with specific gravity 0.700. What is the absolute pressure at the bo

Explain factors influencing lipid oxidation, Factors Influencing Lipid Oxid...

Factors Influencing Lipid Oxidation  Food lipids contain a variety of fatty acids that differ in chemical and physical properties and also in their susceptibility to oxidation.

Destinations of the organic material fabricate by producers, Q. What are th...

Q. What are the destinations of the organic material fabricated by the producers? The Part of the organic material synthesized by the producers is consumed as energy source for

Define tips that should be followed before an event start, Define Tips that...

Define Tips that should be followed before an event Start? Before the event, following tips should be followed:   As the glycogen stores may be used up during night, a h

Define advantages of using the plate counts method, Define Advantages of Us...

Define Advantages of Using the Plate Counts Method? 1. It is simple and sensitive method. 2. It provides viable count as only live cells will grow and produce the colony.

Define fraction in which calcium in plasma is present, Define Fraction in w...

Define Fraction in which Calcium in plasma is Present? Calcium in plasma is present in three major fractions: Ionized calcium Protein bound calcium Complexed c

Simple precautions to prevent injuries, When resheathing needles, simple pr...

When resheathing needles, simple precautions to prevent injuries are to: 1. use only one hand to scoop the cap 2. hold the sheath with a hemostat (suggested but will require

BLOOD CELLS, What is the function of platelets?

What is the function of platelets?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd