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1 lesson_16.1
1 lesson_16.1

... Blood delivers oxygen, hormones, and nutrients to the cells and carries away wastes that the cells produce. About 55 percent of total blood volume consists of plasma, 40 percent of blood is red blood cells, and the remaining 5 percent of blood is white blood cells and platelets. Plasma is the fluid ...
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... High energy requirement Birds and mammals able to invade colder areas ...
Elekanglvoda
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ch_44 water balance - Valhalla High School
ch_44 water balance - Valhalla High School

... conform to the external environment  allow internal conditions to fluctuate along with external changes ...
Chapter 07
Chapter 07

... b. Coronary arteries supply the heart with blood. c. Carotid arteries supply the brain and head with blood. d. Femoral arteries supply the groin and legs with blood. e. Dorsalis pedis arteries extend into the feet. f. Posterior tibial arteries travel from the calf to the feet. g. Brachial arteries a ...
Dissection Guide – Male Section A: Mouth structures 1. To expose
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... Locate and label each of the following organs below. 1. Diaphragm. This muscle divides the thoracic and abdominal cavity and is located near the ribcage. 2. Liver. This structure is lobed and is the largest organ in the body. 3. Gall bladder. This greenish organ is located underneath the liver; the ...
Anatomy And Physiology - AZ Branch AALAS Homepage
Anatomy And Physiology - AZ Branch AALAS Homepage

... Myocardium (heart muscle) Epicardium (covers outer surface of myocardium) Endocardium (delicate layer of tissue lining the inside of the heart’s chambers) ...
Annelid Worksheet
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... _____ 10. The earthworm intestine is called a setae. _____ 11. Leeches secrete a substance to keep blood from clotting. Use each of the terms below just once to complete the passage. Annelida Parapodia ...
PHS_204_ASSIGNMENT_1
PHS_204_ASSIGNMENT_1

... Considered from this viewpoint, the process of coitus with the subsequent climax may be profitably studied in both sexes in human which throw light on human processes of conception. The following are physiological criteria for orgasm: (1) Changes in blood pressure, respiratory pattern and heart rate ...
ch_42 gas exchange - Valhalla High School
ch_42 gas exchange - Valhalla High School

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PHS_204_ASSIGNMENTT_1

... Considered from this viewpoint, the process of coitus with the subsequent climax may be profitably studied in both sexes in human which throw light on human processes of conception. The following are physiological criteria for orgasm: (1) Changes in blood pressure, respiratory pattern and heart rate ...
Chapter 44: Regulating the Internal Environment
Chapter 44: Regulating the Internal Environment

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... and some digestive enzymes to begin the breakdown of food. The CARDIAC STOMACH is closest to the mouth. The PYLORIC STOMACH connects to the INTESTINE. The PYLORIC CAECA are group of fingerlike projections located at the junction of the PYLORIC STOMACH and the DUODENUM (lst part of INTESTINE). VILLI ...
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... However, the levels in the hair tissue vary tremendously, usually offering much more information about them and the metabolic state of the body. The only one we do not measure in the hair is chlorine. It is less important than the others and harder to measure accurately in the hair tissue. Let us lo ...
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... This measurement yields the effective renal blood flow. It assumes that indicator concentrations in whole blood are given. If the more usual plasma concentrations are used, then equation (4) will yield renal plasma flow (RPF). RPF is approximately 600-700 cc/min. in the normal adult. Equation (4) is ...
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... such as a faulty pulmonary or aortic valve will disturb the mechanical action of the heart, but not the electrical activity that shows up on an EKG. ...
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Circulation and cardiovascular systems
Circulation and cardiovascular systems

Cardiovascular Physiology MCQ`s
Cardiovascular Physiology MCQ`s

... b. Changes in venous pressure causes a similar change in intracranial pressure c. The Kety method is uses inhaled nitrous oxide to measure cerebral blood flow d. Hydralazine and ACEI’s reduce the arterial pressure range over which autoregulation occurs ...
Quantitative Fluid Analysis
Quantitative Fluid Analysis

... Test result: Saliva resistiviy high and urine resistivity high Evaluation: At first glance it would appear that the kidney is not concentrating the urine to the degree that is needed. However, when comparing this finding with the finding in the saliva we find that the saliva is not overly congested ...
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... – Each heme contains an ______ atom which binds with _______ – Oxyhemoglobin-hemoglobin that is bound to ...
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... produced during anaerobic respiration of muscles, it takes some time for the rate and the depth of breathing to return to normal after exercise. Go To … Practical 13.6 Study of the effect of exercise on breathing using a breath volume kit (Student’s Book 2 p.143; Activity Book 2 p.97) Practical 13.7 ...
acid base balance - Website Staff UI
acid base balance - Website Staff UI

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Homeostasis



Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, an effector mechanism that can vary that condition, and a negative feedback connection between the two.
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