the diagram given below represents a section of the human heart. answer the questions that follow : - blood circulatory system
the diagram given below represents a section of the human heart. answer the questions that follow : (i) which parts of heart are in the diastolic phase? give a reason to support your answer.(ii) label the parts numbered 1 and 2 in the diagram. what type of blood flows through them?(iii) what causes the heart sounds ‘lubb’ and ‘dup’?(iv) name the blood vessels that supply oxygenated blood to the heart muscles.(v) draw neat labelled diagrams of a cross section of an artery and a vein.
(i) ventricles are in diastolic phase. the arrows indicate blood entering the ventricles. during a ventricular diastole, the valves between atria and ventricles open which allow the entry of blood into the ventricles.(ii) 1 – pulmonary artery, 2 – pulmonary veins(iii) closing of the bicuspid and tricuspid valves causes the ‘lubb’ sound, and the closing of semilunar valves causes the ‘dup’ sound.(iv) coronary artery supplies oxygenated blood to the heart muscles. (v) cross-section of an artery and a vein:
10/12 circulation – process of pressure driven bulk flow of blood to all parts of the body  pressure relies on cardiovascular components  heart o four chambered pump  blood vessels o tubes heart pumps fluid in to o arteries, arterioles, capillaries, venules, and veins structure of the heart  right atrium o receives deoxygenated blood from body  right ventricle o pumps deoxygenated blood to lungs  left atrium o receives oxygenated blood from the lungs  left ventricle o pumps oxygenated blood from the body  fibrous skeleton o separates atria from ventricles  so atria work as one unit and ventricles work as separate unit o forms t Sensory input from barorecepors in the carotid and aortic sinuses.  
Sensory input from the chemoreceptors in the carotid and aortic bodies.  
Cranial nerves IX and V relaying impulses to the cardiovascular center.  
The balance of sympathetic and parasympathetic impulses from the cardiovascular center. an abnormal sound heard due to blood flow turbulence in your carotid artery. this sound can be attributed to a carotid artery aneurysm, dissection or partial blockage, or the same diagnoses in the aortic artery further upstream. please see a vascular surgeon or cardiologist for proper diagnosis and treatment. thanks for trusting in healthtap. see more... hi there!we are asked to determine the process corresponding to the increase in entropy labeled 1 and 2.we can use the heating curve to answer the given questions. recall that entropy is the degree of chaos or disorder of a system. for a given process, entropy (δs) will either increase or decrease. also, phase changes lead to a change in entropy:• we know that the phase at the highest temperature is gas• the plot has 2 process with drastic increase in entropy.• increase in entropy accompanying phase change is from solid → liquid → gas• therefore, the phases in the graph must have been:• phase change from solid to liquid is called fusion or melting• phase change from liquid to gas is called vaporizationprocess 1 represents melting (fusion), and 2 represents vaporization. brief answer: hi, what is the reason for getting the investigations? detailed answer: hi, thanks for posting the query, may i know which investigations were done to give the xxxxxxx score for your heart? do you have any previous illness like diabetes and hypertension? do you take any medicines?... the crocodile is the reptile that is characterized by the presence of a four-chambered heart.   reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. instead of possessing gills like fish or amphibians, reptiles have lungs for breathing. reptiles are four-legged vertebrate animals. the skin of reptiles is covered with scales their metabolism depends on the temperature of their environment. reptiles are oviparous (egg laying) reptiles have several bones in the lower jaw, only one of which, the dentary, bears teeth. almost all reptiles and amphibians have three-chambered heart, except crocodile. brief answer: its probably the heart detailed answer: hello and welcome in hcm i can understand your concern according to the history you explain its not osteoporosis causing this pain. there are three organs that you have to control . first the heart with the following tests: repeat ecg, and the... lily<br><br>thank you for visiting health24.com.<br><br>i recommend that you make an appointment with a cardiologist, to rule ischemic heart disease. you should also have a chest x-ray, a mammogram and an ultrasound of your breast done, to exclude any underlying causes.<br><br>kind regards<br><br><br><br><br>dr anrich burger dear student,
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regards heart evaluations need to be discussed with your
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