Its main functions are nutrients ingestion and protection against digestion by host enzymes.
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Integument of echinoderms consists of thin usually ciliated epidermis and underlying connective tissue dermis containing calcium carbonate. Below cuticle is layer of ciliated epithelium which extends over spines, pedicellarue, tube feet and gills. Epidermis composed of ordinary flagellated or ciliated columnar cells, neuro sensory cells mucous gland cells or goblet cells with finely granular contents uniform gland cells filled with spherules and pigment granules which give colouration to the animal.
Around the body of Molluscs is fleshy mantle which secretes a calcareous hell. The shell is usually external, though it may be internal, reduced or absent. Shell may be one piece or involve or two parts and known as bivalve. Post a Comment. Powered by Blogger. Zoology 0 comments.
Integumentary System - Skin Is In!
Newer Post Older Post Home. Subscribe to: Post Comments Atom. How small intestine and large intestine is main si Structure and function of oral cavity, pharynx, es Evolution of Caeca, Pancreas, intestine, liver and Diversity in vertebrate tongue, salivary glands es Intracellular digestion, extra cellular digestion Macronutrients and Micronutrients What is evolution in digestive structures in inver What are antigens, antibodies, humoral and cell me Respiratory system of Human What is vertebrate respiratory system What is Immunity and define immune system and immu Endocrine system of Birds and Mammals Write detailed note on hormones of Neurophyophysis Describe hormone, its effect on target cell, chemi Organs of Smell and Taste Lateral line system, electrical sensing and mechan Give structure of spinal cord, peripheral nerves, Give evolution of invertebrate and vertebrate nerv What is vision?
Describe vision in Tetrapods. The structure and function of human Ear Details of vertebrate Brain Describe Hygroreceptors, phonoreceptor, Tactilerec What is Baroreceptors chemoreceptors and statocyst Describe nerve impulse, resting membrane potential What is Neuron, its structure and function Muscular system in vertebrates locomotion in invertebrates skeletal system of Invertebrates and vertebrates The skin of Mammals is Complex than other vertebra The gametes are always pure for a particular chara Explain Law of independent assortment by Experimen How Mendel succeeded in formulating in his laws of Define Monohybrid and Dihybrid cross.
Explain inhe Describe Law of independence of Mendel or second l Describe the brief life history of Mendel. State h Short note on Functions of Nucleus, Endoplasmic Re Describe Aneuploidy and Euploidy in relation to ch What are lipids What is cell cycle Describe in detail physiochemical nature of plasma Describe inversions and translocations in the stru Describe deficiency and Duplications in the struct Describe ultra structure and morphology of chromos Describe Mitotic cell division or Mitosis or Somat What are Nucleic acids Describe reduction division in plants also its sig Describe Proteins and Amino compounds present in p Define Carbohydrates present in plant cell Describe Physio chemical nature of the cytoplasm o Describe physiochemical nature of plasma membrane Interacting with Other Systems How does the integumentary system work with other systems?
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We already spoke about your skin as one of the first defense mechanisms in your immune system. Your skin has tiny glands that secrete sweat and oil. Those glands are termed exocrine glands and are not like the glands of your endocrine system. While it may feel a bit slimy, those fluids decrease the pH on the surface of your skin and kill microorganisms. There are even enzymes in your sweat that can digest bacteria.
Topic: Integumentary System | CosmoLearning Biology
The integumentary system also works closely with the circulatory system and the surface capillaries through your body. Capillaries near the surface of the skin open when your body needs to cool off and close when you need to conserve heat.
We can't leave out the important sense of touch. Your nervous system depends on neurons embedded in your skin to sense the outside world. Problems with the Skin Can things go wrong with the system? There can be genetic diseases that result in super-thick skin. There is a disease called psoriasis where the cells of the epidermis are created at a speedier rate.
The result is thick and callously skin on elbows and knees. Medicines can help relieve the condition. In recent years, skin cancer has become a greater problem for people. It's not that we are more vulnerable to cancer; people just seem to be spending more time in the sun without protection. You should always use sunscreen, hats, and sunglasses when you are outside.
That sunscreen and protection decreases the effect of ultraviolet radiation on the cells of your dermis and subcutaneous cells. The ultraviolet radiation is the cause of many different types of skin cancer.