Biology, 29.01.2020 11:02 nakeytrag

How would defective elastic fibers impair the functions of the organs and tissues?

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Elastic fibers are specialized type of fibers that are found in the blood vessels. They exhibit proteins named as elastin, fibrin and microfibrils that provides structural and mechanical support to the blood vessels and provides elasticity and resilience to the tissues. The elasticity of the blood vessels tissue is important because the pressure inside the blood vessel may vary according to the speed of flow of the blood. The high blood pressure may exert force on the walls of the blood vessel, this may lead to rupture of blood pressure and can lead to cardiac arrest.

Therefore, defective elastic fibers may exhibit lack of elasticity which may lead to rupture of the blood vessels, hence may affect the function of the heart, kidney, lung or any other vital parts of the body.

Answer from: Quest

Where are the following

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interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle

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