Can you check 1 & 2 for me, and help me with 3? The questions are on the picture

Question

Can you check 1 & 2 for me, and help me with 3? The questions are on the picture. UNIT 4 REVIEW Date Check Your Understanding Critical Thinking and Application Questions 1 The condition Marfan syndrome results from the production of abnormal elastin, the main protein component of elastic fibers. Predict the potential consequences of defective elastic fibers. (Hint: Consider the organs and tissues in which elastic fibers are found. How would defective elastic fibers impair the functions of these organs and tissues?) Coneuences of deschve elasnc kin looking foose elashe capabilithes 2 Collagen vascular diseases affect the protein collagen, the main component of collagen fibers. Predict the possible consequences of defective collagen fibers on specific organs and tissues. one consequenca oe defechve Collagen Aoers wouid mean Zi is caused oua mutatcd gene How would the effects of a collagen vascular disease that affected only the collagen in reticular fibers dffer from the effects seen with question 2? Why? 3 The formation of fibrocartilage is a common response to injury of hyaline cartilage. Do you think fibrocartilage would

Explanation / Answer

1. As elastic fiber has an important role in an artery to control the pressure as to have a normal blood flow and to prevent from regurgitation of a blood and is abundantely found in large amount in aorta, a potential consequences in this case would be arteriosclerosis which happens due to loss of elasticity of the walls of the arteries.

2. Collagen is the vital protein in extracellular space in different connective tissues. It is found in heart in the form of cardiac skeletal. One of the possible consequences related to defective collagen fibres are ventricular fibrillation because without the support of collagen atrial fibrillation can lead to ventricular fibrillation.

3. Reticuler fiber or reticulin fiber is one of the fiber in connective tissue produced by reticuler cells, they crosslink and make a network which supports mesh in soft tissues e.g., liver, bone marrow, Lymphatic organs and tissues related to it. As in question no. in cardiac skeletal collagen 1 is responsible whereas, in reticuler fibres collgen 3 is responsible although collagen 3 is also can be found alongside collagen 1.

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