THE FACIAL PART OF THE HEAD OPERATIONS ON THE HEAD The border between the head and neck is the line which is drawn along the inferior margin of the mandible‚ apex of the mastoid process‚ superior nuchal line to the external occipital protuberance and passes on to another side. The facial part is composed of the following regions: the orbital region‚ the oral cavity region (the region of the mouth)‚ nose region (region of the nose)‚ the lateral region and deep region of the face. You studied
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The Cardiovascular System The cardiovascular system consists of a heart and an enclosed system of blood vessels categories into arteries‚ capillaries and veins. The heart is a muscle about the size of the fist; its wall is made up of a muscle known as the Cardiac Muscle‚ and is located between the two lungs and lies left of the middle of the chest (cliff notes). A fibrous covering known as the pericardium which surrounds around the whole heart holds the heart in place but allows it to move as
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Abstract This paper will review and critique Hess’s quantitative study of vascular access improvement in pediatric population by using a vein viewing device. The author utilized a prospective‚ non-randomized study at a tertiary care center. The sample of the study included 150 procedures in the control group and 91 procedures in the experimental group from the ages 0 to 17 years. The primary aim of the study was to increase the first-attempt success rate of venipuncture and decrease procedure
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Venous Ulcer A venous ulcer is a shallow sore on your lower leg caused by poor circulation of the veins. This condition used to be called a stasis ulcer. Veins have valves that help blood return to the heart. If these valves do not work properly‚ blood flows backward and backs up into the veins near the skin. This causes the blood to pool in your lower legs. The blood can then can leak out of your veins and irritate your skin. This may cause a break in your skin and lead to stasis venous ulcer. A
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through narrow arteries and enters the capillaries‚ which are the narrowest blood vessels. Many substances and some blood cells pass into and out of the blood by moving through the thin porous capillary walls. The blood is then carried through the veins‚ which return the blood to the heart. The passage of blood through the ves- ’" sels in a part of the body is called perfusion of that part. Some materials that are carried away from a region of the body do not pass into the blood but are collected
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a nurse who has had specialty training or a doctor. Both of these people must use a machine called an ultrasound to find the veins in the upper arm. Just like any other line‚ the vein‚ when found‚ must be cleaned and covered with a sterile cloth so that infection can be prevented. Before the administration of the PICC line‚ the area where they are going to access the vein at is
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1) The mechanical and chemical receptors that control digestive activity are located in the walls of the GI tract organ. (854) 2) The chemical and mechanical processes of food breakdown are called digestion. (852-853) 3) The function of the hepatic portal circulation is to collect absorbed nutrients for metabolic processing and storage. (881) 4) When we ingest large molecules such as lipids‚ carbohydrates‚ and proteins‚ they must undergo catabolic reactions whereby enzymes split these
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and some dicots have features of monocots‚ meaning there’s a "fuzzy" border between these classes. Leaves and Stems The leaves of monocot plants tend to be elongated‚ with leaf veins running parallel along the leaf length. Dicot leaves tend to be more rounded with a network of auxiliary veins between the main veins. The vascular tissue in plant stems occurs in long strands called vascular bundles. In monocot plants‚ a cross section of the stem shows vascular bundles randomly scattered in the stem
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Name ____________________________ BIO 107 Chapter 13 – The Cardiovascular System 1) Where is the heart located? Within the mediastinum‚ bordered laterally by the lungs‚ posterio0rly by the vertebral column‚ anteriorly by the sternum. 2) Distinguish between the visceral pericardium and the parietal pericardium. Visceral is a membrane that covers the surface of the heart. Parietal is a membrane that forms the outter wall of the peritoneal cavity 3) Describe the layers of the heart wall.
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the systolic pressure in the forearm and calf using the same methods as Exercise 3. In Exercise 5‚ we measured systolic pressure while the volunteer was standing and lying down. In Exercise 6‚ we measured the distance between the heart and where the veins in the hands collapse to determine venous pressure. In Exercise 7‚ we measured the forearm circumference as the volunteer held their arm above their head with increasing cuff pressure. Results: The average systolic and diastolic pressures for the
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