I. ANATOMY AND PHYSIOLOGY OF THE HEART I. LOCATION OF THE HEART The heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist‚ and its weight is about 250-300 g. Its center is located about 1.5 cm to the left of the midsagittal plane. Located above the heart are the great vessels: the superior and inferior vena cava‚ the pulmonary artery and vein‚ as well as the aorta. The aortic arch lies
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the fractured femur and a biopsy of the bone tissue indicated that the composition of the osteoid was normal. Healing of the fractured femur is proceeding slowly. 1. What organ(s) is(are) involved? The organ that is involved would be the skeletal system. 2. What primary tissue type is involved? The primary tissue involved is bone tissue. 3. What specific type of tissue is affected? The specific tissue that is affected is the connective tissue. 4. What specific types of cells produce the
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CHAPTER 1: AN INTRODUCTION TO HUMAN ANATOMY & PHYSIOLOGY OBJECTIVES 1. Define the terms anatomy and physiology‚ and explain their relationship using an example of a human structure with its corresponding function. 2. List‚ in order from least to most complex‚ the levels of structural organization‚ discuss the relationship between the levels‚ and name an example at each level. 3. List the 11 organ systems of the human organism‚ name the major organs within each‚ and give a general
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Fissure- in the front‚ deeper Posterior Median Sulcus- in the back‚ shallow ▪Two Enlargements for Limbs: (up and down below) 1. Cervical Enlargement- in the inferior cervical region‚ the spinal cord gives rise to the nerves of the upper limbs‚ up 2. Lumbar Enlargement- in the lumbosacral region there are nerves to the pelvic region and lower limbs arise‚ below Medullary Cone- the spinal cord becomes more tapered ▪Meninges- the spinal cord and brain are enclosed in three fibrous membranes‚ specialized
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HOW TO GAIN MUSCLES. Introduction. The assignment topic touches on a very important part of the human body a muscle. This is a soft tissue found on most animals and is made of cells that contain protein filaments of actin and myosin that slide past one another‚ producing a contraction that changes both the length and the shape of the cell. It function to produce force there location on the body or according to the functions and roles they play. They are the cardiac muscles (muscles covering the
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Your muscle and strength workout routine requires hard work and excellent technique to build strength and muscle fast with no injuries. Get ready to sweat and struggle- If your serious about muscle and strength gaining then get ready for some straining with heavy weights. No more than 5 reps- If you are doing more than 5 reps in each set than you are not using enough weight. Allow 2 to 3 minutes between sets- Proper rest is a must when strength and muscle training. Over exercise will just slow
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1. Describe the main muscle groups of the body and their function There are three main categories that the muscles in the human body fall into: • Skeletal Muscle Skeletal muscle is the foremost area of concern for a sports masseuse. The main functions of this muscle group is to move the body in a voluntary manner‚ for example‚ if you want to kick a ball you will voluntarily have to send a signal through your brain to inform the muscles in your legs to contract/flex/extend and execute the skill
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Muscle Contraction & Excitation Muscle excitation takes place when there is a synaptic transmission and induction of an impulse. There are six steps that take place during muscle excitation. (1)The action potential travels down the somatic motor neuron axon reaching the synaptic bulb causing calcium ions to flow into the synaptic bulb. (2)The increase of calcium in the synaptic bulb causes the synaptic vesicles to undergo exocytosis. (Exocytosis a process that allows large molecule to leave
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A Reading of Updike’s “Ex-Basketball Player” The purpose of this essay is to inform the reader about a poem by John Updike‚ called “Ex-Basketball player”. The speaker in the poem talks about a man named Flick Webb and his apathetic life. He informs the reader about Flick Webb’s exceptional talent as a basketball player in high school. Towards the end of the poem the realization is that Flick Webb’s exceptional basketball talent had been berried under his reality of life. In the eyes of the
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Vigorous and unfamiliar exercise‚ particularly which involves eccentric muscle actions can cause muscle damage and lead to delayed-onset muscle soreness (DOMS)‚ which may impair performance. This is due to the high force features of eccentric contraction (Starbuck & Eston‚ 2011). It can also cause muscle shortening‚ swelling and loss of strength in the muscles. Injuries commonly occur during eccentric loading of the muscle; that is‚ when the muscle is contracting while it is lengthening. (LaStayo
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