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!
Muscle and Movements
Earlier you have read about amoeboid movement, ciliary and flagellar movement. In this section you will learn how muscles are involved in the movement. Muscle cells are found in almost all the phyla of the animal kingdom except the phylum protozoa. Contraction and relaxation of these muscles brings about movement in the organisms. In vertebrates there are three types of muscles: skeletal muscles, cardiac muscles and smooth muscles. Skeletal muscles are attached to the bones in the arms, legs and the spinal cord and produce activities such as walking, movement of head, hands etc. Cardiac muscles are the muscles of the heart. These are specialised for continuous contractions of the heart, needed in pumping of the blood.
Smooth muscles are present in the walls of internal organs such as the large and small intestine, the gall bladder and large blood vessels. Contraction and relaxation of smooth muscles control the diameter of blood vessels and also propel food along the gastro-intestinal tract. Under the microscope the skeletal muscles and the cardiac muscles exhibit transverse light and dark bands alternating with each other. Therefore, the skeletal muscles and the cardiac muscles are also called striated muscles. The smooth muscles do not have striations.
Is a gene a triplet of consecutive DNA nucleotides? A gene is not a triplet of DNA nucleotides with their respective nitrogen-containing bases, like AAG or CGT. The nucleotide
You may have heard in the news currently that a new species of frog was discovered within a rainforest. You objective are to isolate genomic DNA and construct an expression libr
Determine the prevention of Cholera Prevention: Following recommendations are there to prevent cholera outbreak: Drink only water that you have boiled or treated with
How is digestion performed in protozoans? Digestion in protozoans is intracellular digestion: organic material is internalized and degraded inside the cell. Protozoans get
Q. Is the neural impulse generated by the stimulus that triggers the arch reflex restricted within the neurons of this circuit? This is obvious since the person that received t
What is Demographic Transition? The whole process of change with regard to population size and characteristics is called demographic transition. In order to understand this ter
The stabilization energy of a bond or interatomic interaction is the change in energy upon breakage of a bond between two atoms (i.e., the change in energy when the atoms are moved
Define Health Effects related to Probiotics? Several lines of evidence support the conclusion that normal gut microflora are involved in resistance to disease, especially gastr
Chemical Composition and Nutritive Values The nutritional quality of an oil meal protein will be affected by the processing conditions to which it is been exposed. Three major
D i a g no s i s Diagnosis, the key for successful management of the disease problem, refers to identification of the cause of a disease. The process of diagnosis requir
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