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Structural Organisation in Animals Test - 31

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Structural Organisation in Animals Test - 31
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  • Question 1
    1 / -0
    The term tissue is coined by
    Solution
    The tissue is an ensemble of similar cells from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues. 
    Marie François Xavier Bichat was a French anatomist and physiologist, who is best remembered as the father of modern histology and descriptive anatomy. Despite working without a microscope, he was the first to introduce the notion of tissues as distinct entities, and maintained that diseases attacked tissues rather than whole organs or the entire body, causing a revolution in anatomical pathology. So, the correct answer is option A.
  • Question 2
    1 / -0
    The colour of haemolymph of cockroach is
    Solution
    Hemolymph is a fluid, analogous to the blood in vertebrates that circulates in the interior of the arthropod body remaining in direct contact with the animal's tissues. In cockroach, the hemolymph is colourless.
    Therefore, the correct answer is option D.
  • Question 3
    1 / -0
    Inner lining of blood vessel is composed of
    Solution
    Simple squamous epithelial cells are thin and flat cells having a large surface area that is exposed to the lumen on one side and to the basement membrane on the other side. The cells are scale-like in appearance. They tend to have larger, elliptically-shaped nuclei. As a simple type of epithelium, the simple squamous epithelium is one cell-layer thick and thus every cell of the tissue comes in direct contact with the basement membrane. The endothelium is a type of epithelium that lines the interior surface of blood vessels and lymphatic vessels. It is a thin layer of simple squamous cells called endothelial cells. 
    Hence the correct option is C.
  • Question 4
    1 / -0
    Term 'epithelium' was coined by 
    Solution
    Frederik Ruysch coined the term 'epithelium' in the third volume of his 'Thesaurus Anatomicus' in 1703. It performs several functions like secretion, selective absorption, protection, transcellular transport and detection of sensation. 
    So, the correct answer is option A.
  • Question 5
    1 / -0
    The inner lining of blood vessels and heart is called 'tessellated epithelium', which is actually
    Solution

    • Based on the number of layers, epithelia are mainly of three types, simple, stratified, and pseudostratified.
    • Based on the cell shape, epithelia are of three types, squamous, cuboidal and columnar.
    • Various combinations of the above mentioned six types of epithelia are found in various locations of the body, each serving some unique function.
    • Cells of squamous epithelium having wavy outlines comprise what is called the tessellated epithelium. For example, the epithelium lining the blood vessels.

    So the correct answer is 'Simple squamous with wavy appearance.'
  • Question 6
    1 / -0
    Compound squamous epithelium occurs in
    Solution
    Compound squamous epithelium occurs in the pharynx. The main function of this type of epithelium is the protection to underlying tissues against mechanical, chemical, thermal or osmotic stresses. Being multi-layered, it has little role in secretion and absorption
    So, the correct answer is 'Pharynx'
  • Question 7
    1 / -0
    Multicellular gland is composed of:
    Solution
    Epithelial cells often acquire additional specialization as gland cells, which can secrete substances at the epithelial surface. Sometimes a portion of the epithelial tissue folds inward, and a multicellular gland is formed. This is called the glandular epithelium.
    Hence, the correct option is B.
  • Question 8
    1 / -0
    An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like closely packed tiles, is found to be present in
    Solution
    Epithelial tissue is a sheet of cells that covers a body surface or lines a body cavity. An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like closely packed tiles is known as squamous epithelium. It covers moist surface which has minimum wear and tear by friction such as inner lining of cheeks, lining of blood vessels, alveoli, etc.
    So, the correct answer is option D.
  • Question 9
    1 / -0
    Who is father of microscopic anatomy?
    Solution
    Marcello Malpighi was an Italian physician and biologist regarded as the 'father of microscopical anatomy and histology'. Malpighi gave his name to several physiological features related to the biological excretory system, such as the Malpighian corpuscles, Malpighian pyramids of the kidneys and the Malpighian tubule system of insects. 
    So, the correct answer is option C.
  • Question 10
    1 / -0
    The ends of two long bones are connected by:
    Solution
    • The ends of two long bones are connected by ligaments.
    • A ligament is a fibrous connective tissue, that connects bones to other bones. 
    • Cartilage is a non-vascular type of supporting connective tissue that is found throughout the body, while tendons connect bones and muscles.
    So, the correct answer is option C.
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