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 i am seven months pregnant and i am feeling this breathlessness and fast palpitation almost everyday in the?
morning especially after eating something my doc said its normal my BP is always normal and so is my sugar level i cant stand while in that condition ,and now i feeling some swelling on my face and ...


 Even while the heart's chambers are relaxing, there is still residual pressure in the arteries, how come?
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 should I avoid the hot tub while taking warfarin?
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 can constrictive pericardium's symptoms return after having operation to strip?
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 list 10 reasons why pulse rate changes?
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 How does shiitake decrease cholesterol levels? deatailed answer please.?
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 Are drugs placed on the market too quickly?
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 Bachelor of Science in Nursing Question?
So, I want to become a doctor. Here is what I want to know. I want to know if yo u can still take all the prerequisite courses for medical school while doing a bachelor of Science in Nursing (i.e ...


 which medicines can be used in high altitude?
I frequently go to the mountains and I would like to know which medicines could be helpful to take with me....


 list 10 reasons why pulse rate changes?
...


 How does shiitake decrease cholesterol levels? deatailed answer please.?
...


 My husbands Blood Pressure is 129/51?
So, the systolic is fine? But the diastolic is low? What does this mean? OK, now it is 133/48!! This seems strange to me. His resting heart rate is 55bpm. He is fit. How do I interpret this? PS. He ...


 what is the major artery called to the heart?
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 my blood pressure is 157/89 and getting out of breath to quick is this anything to worry about?
sorry im 42 and ive been to the doctors thats how i found out about my blood pressure but he wants more tests first before he does anything about ...


 Question about the heart!!?
Throughout the day, I feel my heart palputate. I've heard that this is ok but there are sometimes it feels like someone is giving it a gentle squeeze. Is this normal or would some attention be ...


 My heart rate dropped to 40 beats per minute the other day. How low can your heart beat drop?
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 Panic attacks while driving.?
Ok, I'm 23 years old and I've always had anxiety. For about the past year, I've started having major panic attacks while I'm driving, especially at night time. I absolutely refuse ...


 Triple heart bypass for my mother?
Hi my mum who is 52 is having bypass surgery on her heart in 2 weeks time she has asked me to care for her when she comes out of hospital which is not a problem at all.. I just wondered how much care ...


 My blood pressure reading is 136/88, is that normal?
I am a 22 year old asian weighing about 74kg, im not sure if my blood pressure is high or still within the normal range....


 Stress test?
I have been ordered to take a stress test, the proper name for it is, "Thallium myocardial perfusion scan", they inject radioactive compound into your veins, then scan your heart, then get ...



pat68
Why are skeletal and cardiac muscles referred to as "striated?"?
Is the fact that the filaments in cardiac and skeletal muscle cells form regular patterns the reason that they are have striations? Whereas with smooth muscle, the filaments are irregularly arranged -> therefore no striations? If not what causes the striations in skeletal and cardiac muscles?
                     




medcenman
look into the A band and I band and all those stuff. what you see under microscope indicates the name striation. Smooth mucsles don't don't have those since there is not much ATP is used in'em.


biff.1145
Striated muscle Definition noun, plural: striated muscles A muscle that is made up of long fibers characterized by transverse or oblique striations, or alternating light and dark bands under the microscope. Supplement This characteristic appearance under a microscope is due to a number of sarcomeres or an array of overlapping thick (myosin) and thin (actin) filaments within each muscle cell. Its function is concerned with the movement of skeletal structures. This kind of muscle is exemplified by the voluntary (skeletal) muscles of vertebrates. Word origin: striated: L striātus furrowed, fluted; muscle: L. musculus "a muscle," lit. "little mouse," dim. of mus "mouse". Compare: smooth muscle. See also: skeletal muscle, cardiac muscle, slow muscle. Smooth muscle smooth muscle (Science: anatomy, pathology, physiology) muscle tissue in vertebrates made up from long tapering cells that may be anything from 20-500m long. smooth muscle is generally involuntary and differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length. Smooth muscle cells are found particularly in blood vessel walls, surrounding the intestine (particularly the gizzard in birds) and in the uterus. The contractile system and its control resemble those of motile tissue cells (e.g. Fibroblasts, leucocytes) and antibodies against smooth muscle myosin will cross react with myosin from tissue cells, whereas antibodies against skeletal muscle myosin will not. See: dense bodies. A muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart).Muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets.A muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart).Another term for involuntary muscle, see [[involuntary muscle]


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