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What is Energy Used For?
What is Energy Used For?

MEASUREMENTS OF GLUCOSE, CHOLESTEROL, AND PROTEIN
MEASUREMENTS OF GLUCOSE, CHOLESTEROL, AND PROTEIN

... monomers are then moved across the wall of the small intestine into the blood of the ...
SACE2 Biology Textbook Sample Pages
SACE2 Biology Textbook Sample Pages

... Lung function is impaired if a person is suffering from asthma because the bronchioles may be constricted, thereby restricting the volume and rate of breathing. A person suffering from emphysema has a reduced area of alveolar membranes which also limits diffusion rate, such people often need to brea ...
Try It:
Try It:

Notes GAS EXCHANGE AND CIRCULATION Purpose Cellular
Notes GAS EXCHANGE AND CIRCULATION Purpose Cellular

1.2.2 - The cardiovascular system during exercise
1.2.2 - The cardiovascular system during exercise

... Two readings are taken, the systolic pressure when the heart contracts and the diastolic pressure when the heart relaxes. This is given as a number. 120/80 is the average reading for a young adult. Blood pressure can be used as an indicator of general health. Constant high blood pressure is known as ...
organs and organ systems: introdaction
organs and organ systems: introdaction

... function. Examples of organs include the heart, the brain, the pancreas, blood vessels, bones, and skin. Groups of multiple organs working together to carry out a major bodily function are called organ systems. Any animal more complex than the cnidarians and ctenophores (jellyfish and comb jellies) ...
tunica adventitia
tunica adventitia

... smaller as they branch, and whose function is to carry the blood, with nutrients and oxygen, to the tissues. 3- The capillaries, the smallest blood vessels, constituting a complex network of thin tubules that anastomose profusely and through whose walls the interchange between blood and tissues take ...
Fetal Pig Cardiovascular
Fetal Pig Cardiovascular

... Two exceptions – one is? Symbolized with red Veins: carry blood to reference point Heart; contain valves; why? Usually deoxygenated Two exceptions – one is? Symbolized with blue Capillaries: form an intricate network throughout the body for the interchange of various substances, between blood and ti ...
Chapter 21: Blood Vessels and Circulation
Chapter 21: Blood Vessels and Circulation

... reabsorbed into them; the excess is taken up by the lymphatic system and ultimately returned to the veins. However, if there is an imbalance between filtration, reabsorption, and lymphatic uptake, fluid may accumulate in the interstitial fluid surrounding the capillaries – a condition known as edema ...
Respiratory System
Respiratory System

... • The epiglottis is up so air enters the Trachea and passes the larynx (voice box) • The trachea then forks to form two bronchi ...
8.31Indentify The Parts of The Respiratory System
8.31Indentify The Parts of The Respiratory System

... 2. ________________ are the most important organs in the respiratory system. 3. Lungs connect your body with _________ ...
The Human body
The Human body

... Muscles are very important. They help you do almost everything — from pumping blood throughout your body to lifting your heavy backpack. You control some of your muscles and others, like your heart, do their jobs without you thinking about them at all. ...
Study Guide
Study Guide

... Throughout a person’s life, osteoclasts breakdown bone tissue, thereby releasing the minerals calcium and phosphate to be reused in new cells. Osteoblasts build new cells, and will become and osteocyte later on. An epithelial plate is where bone development occurs. spongy bone – a network of connect ...
Osmoregulation File
Osmoregulation File

... tubules connected to external openings •  The smallest branches of the network are capped by a cellular unit called a flame bulb •  These tubules excrete a dilute fluid and function ...
Answers Multi-cellular Organisms Year 8 Science Chapter 3
Answers Multi-cellular Organisms Year 8 Science Chapter 3

... Birds have lungs and from seven to nine air sacs. Humans have lungs but no air sacs. Birds need two breathe-in and breathe-out cycles to move air through their respiratory system. Humans need one breathe-in and breathe-out cycle. 13 What is common to insect, bird, and human respiratory systems? The ...
Nervous and endocrine systems
Nervous and endocrine systems

... relatively stable state despite changes in either the external or internal environment. A stable internal environment is important because organisms function more efficiently when they are under optimum conditions. • The external environment of a cell can vary greatly. The internal environment is ge ...
Chapter 11 - Bringoldville
Chapter 11 - Bringoldville

... • Vein-carry blood from all parts of body to the heart • Pulmonary circulation- carries blood from the heart, through the lungs, and back to the heart • Systemic circulation- sends oxygen- rich blood to body • Plasma- yellowish fluid, watery portion of blood • Blood pressure- force of blood pushing ...
IV. Cardiovascular physiology
IV. Cardiovascular physiology

... iv. Pressure drops from 100 to 97 torr (mmHg) (i.e., resistance less than 1 torr per liter per min) b. Arterioles (approx 7micron dia, 3mm long) - flow and pressure control i. Muscular walls, diameter can be actively varied ii. Contain a small fraction of total blood volume iii. Chief site of resist ...
Oxygen and Carbon Dioxide Dissociation Curves
Oxygen and Carbon Dioxide Dissociation Curves

... When hydrogen ion concentration deviates too far from normal, these molecular effects show up clinically as abnormalities of organ function. Luckily, two buffer systems play dominant roles in buffering changes in hydrogen ion concentration in the body. Hydrogen ion combines reversibly with bicarbona ...
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... E) new cells produced at rate of ~2 mil/sec, live ~120 days 1) controlled by erythropoietin ...
2.3 Page 1 - csfcbiology
2.3 Page 1 - csfcbiology

... have a large total surface area and relatively narrow bore causing substantial reduction from aortic pressure. Their pressure depends on whether they are dilated or contracted. 16. There is an even greater resistance in the capillaries with a larger crosssectional area. 17. The velocity of blood of ...
Endocrine Notes
Endocrine Notes

...  Pituitary gland – the master gland; pea-sized, found in brain; controls all other glands  Adrenal glands – produce adrenaline; increased body activity during emergencies; 2 glands located on the top of the kidneys; (“fight or flight”)  Thyroid gland – controls metabolism; rate at which food is u ...
Largest phylum on earth Examples: spiders, ticks
Largest phylum on earth Examples: spiders, ticks

... -Small Intestine – Absorbs nutrients and sends undigested food to LI -Fat Bodies-Fat source for frog during hibernation -Kidney –Produces and excretes Urine -Spleen—Stores and purifies blood -Heart- pumps blood throughout the body -Lungs- Takes in Oxygen and distributes to blood ...
Circulatory_System_Notes_SBOF_July_2005
Circulatory_System_Notes_SBOF_July_2005

... v. Carries CO2 and waste (exception: pulmonary vein) vi. Valves: keep blood flowing in one direction c. _______________ i. Flexible due to high pressure ii. Thick walls protect against high pressure iii. Get smaller as they move away from the heart d. ___________ i. Connect arteries to veins ii. Car ...
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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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