Biology (2004)
... NaOH) as it enters the 1.5 hours after intake, the stomach is fully digesting the food as seen in the graph it needs 70 mL of NaOH to neutralise the stomach acid. Then as time moves on, the chyme moves from stomach into small intestine as evident in the sharp decrease of NaOH required levelling out ...
... NaOH) as it enters the 1.5 hours after intake, the stomach is fully digesting the food as seen in the graph it needs 70 mL of NaOH to neutralise the stomach acid. Then as time moves on, the chyme moves from stomach into small intestine as evident in the sharp decrease of NaOH required levelling out ...
Respiratory A & P
... O2 diffuses from alveoli to pulmonary capillaries CO2 diffuses from pulmonary capillaries to alveoli ...
... O2 diffuses from alveoli to pulmonary capillaries CO2 diffuses from pulmonary capillaries to alveoli ...
circulatory system
... Arteries are blood vessels that carry blood, rich in oxygen, from the heart to other parts of the body. The large arteries have thick walls of elastic-like tissue that enables them to withstand the blood pressure created by the heart’s beating. ...
... Arteries are blood vessels that carry blood, rich in oxygen, from the heart to other parts of the body. The large arteries have thick walls of elastic-like tissue that enables them to withstand the blood pressure created by the heart’s beating. ...
circulatory system - Livingstone High School
... Arteries are blood vessels that carry blood, rich in oxygen, from the heart to other parts of the body. The large arteries have thick walls of elastic-like tissue that enables them to withstand the blood pressure created by the heart’s beating. ...
... Arteries are blood vessels that carry blood, rich in oxygen, from the heart to other parts of the body. The large arteries have thick walls of elastic-like tissue that enables them to withstand the blood pressure created by the heart’s beating. ...
Lungs and External Exchanges of Gases (cont.)
... • It is the heme group of the hemoglobin in red blood cells that carries oxygen. • Hemoglobin acquires oxygen as the blood flows through the vessels surrounding the alveoli. • Several factors can trigger the release of oxygen from hemoglobin. – A decrease in the oxygen concentration in the tissues ...
... • It is the heme group of the hemoglobin in red blood cells that carries oxygen. • Hemoglobin acquires oxygen as the blood flows through the vessels surrounding the alveoli. • Several factors can trigger the release of oxygen from hemoglobin. – A decrease in the oxygen concentration in the tissues ...
Overview of Anatomy and Physiology
... Overwhelming the usual negative feedback mechanisms allows destructive positive feedback mechanisms to take over Homeostasis has survival value because it means an animal can adapt to a changing environment. It can deal with the temperature difference you face when you step your front door. The bo ...
... Overwhelming the usual negative feedback mechanisms allows destructive positive feedback mechanisms to take over Homeostasis has survival value because it means an animal can adapt to a changing environment. It can deal with the temperature difference you face when you step your front door. The bo ...
Endocrine Physiology - bushelman-hap
... decay, and are metabolized and excreted from the body through several routes. Shutting off secretion of a hormone that has a very short half-life causes circulating hormone concentration to plummet, but if a hormone's biological half-life is long, effective concentrations persist for some time after ...
... decay, and are metabolized and excreted from the body through several routes. Shutting off secretion of a hormone that has a very short half-life causes circulating hormone concentration to plummet, but if a hormone's biological half-life is long, effective concentrations persist for some time after ...
SBI 3U Final Examination Review
... How does the partial pressure of O2 and CO2 promote gas exchange and transport? How is oxygen transported in the blood? The three ways in which carbon dioxide is returned to the lungs for expiration Mechanisms that maintain gas levels in the blood Common characteristic of all respiratory disorders C ...
... How does the partial pressure of O2 and CO2 promote gas exchange and transport? How is oxygen transported in the blood? The three ways in which carbon dioxide is returned to the lungs for expiration Mechanisms that maintain gas levels in the blood Common characteristic of all respiratory disorders C ...
circulatory system
... solutes between the blood stream and the interstitial fluid. Because of their small size, the capillaries are sometimes called as “Microcirculation”. They are also called as exchange vessels, because they exchange water and solutes between the blood stream and the interstitial fluid takes place acro ...
... solutes between the blood stream and the interstitial fluid. Because of their small size, the capillaries are sometimes called as “Microcirculation”. They are also called as exchange vessels, because they exchange water and solutes between the blood stream and the interstitial fluid takes place acro ...
Lecture #11 – Animal Circulation and Gas Exchange Systems
... capillary beds in a single circuit Blood pressure drops as blood enters the capillaries (increase in cross-sectional area of vessels) Blood flow to systemic capillaries and back to the heart is very slow Flow is increased by swimming movements ...
... capillary beds in a single circuit Blood pressure drops as blood enters the capillaries (increase in cross-sectional area of vessels) Blood flow to systemic capillaries and back to the heart is very slow Flow is increased by swimming movements ...
12) ALVEOLI: In the lungs, clusters of ny, thin
... from entering the trachea 4) At the lower end of trachea, two short tubes called bronchi branch into smaller tubes 5) Smallest tubes are bronchioles, which end in clusters of alveoli. ...
... from entering the trachea 4) At the lower end of trachea, two short tubes called bronchi branch into smaller tubes 5) Smallest tubes are bronchioles, which end in clusters of alveoli. ...
Chapter Outline
... 6. Regulation requires a receptor that detects unacceptable levels and signals a regulator center that can direct an adaptive response; once normalcy is obtained, the receptor is no longer stimulated. B. Negative Feedback 1. A negative feedback mechanism involves a response in which a variable is ke ...
... 6. Regulation requires a receptor that detects unacceptable levels and signals a regulator center that can direct an adaptive response; once normalcy is obtained, the receptor is no longer stimulated. B. Negative Feedback 1. A negative feedback mechanism involves a response in which a variable is ke ...
Ch. 21 Outline
... A. Water normally enters the body only through the mouth, but it can be lost by a variety of routes including: 1. Urine (60% loss) 2. Feces (6% loss) 3. Sweat (sensible perspiration) (6% loss) 4. Evaporation from the skin (insensible perspiration) 5. The lungs during breathing 6. (Evaporation from t ...
... A. Water normally enters the body only through the mouth, but it can be lost by a variety of routes including: 1. Urine (60% loss) 2. Feces (6% loss) 3. Sweat (sensible perspiration) (6% loss) 4. Evaporation from the skin (insensible perspiration) 5. The lungs during breathing 6. (Evaporation from t ...
BIO132 Chapter 27 Fluid, Electrolyte and Acid Base Balance
... The ions cannot pass freely through cell membranes, but the water can by osmosis, and will move to equilibrium. Thus, solute/electrolyte concentrations of the fluid divisions will directly impact water distribution. The Four Rules of Regulation of Fluids and Electrolytes: 1) All homeostatic mechanis ...
... The ions cannot pass freely through cell membranes, but the water can by osmosis, and will move to equilibrium. Thus, solute/electrolyte concentrations of the fluid divisions will directly impact water distribution. The Four Rules of Regulation of Fluids and Electrolytes: 1) All homeostatic mechanis ...
Respiratory Failure
... Its classification into types I and II relates to the absence or presence of hypercapnia (raised PaCO2) ...
... Its classification into types I and II relates to the absence or presence of hypercapnia (raised PaCO2) ...
9. Cephalopod Anatomy
... As their name implies, members of the class Cephalopoda have modified “head-foot” which bears an array of prehensile tentacles and arms at the cranial end of the body. The visceral mass is located toward the caudal end. Only the nautilus possesses an external shell; the shell is completely lacking i ...
... As their name implies, members of the class Cephalopoda have modified “head-foot” which bears an array of prehensile tentacles and arms at the cranial end of the body. The visceral mass is located toward the caudal end. Only the nautilus possesses an external shell; the shell is completely lacking i ...
The Health Effects of Tobacco
... Lung Cancer and Cancers Lung Cancer occurs when abnormal cells in one or both lungs grow rapidly and form a mass of cells which is called a tumor. The growth usually happens in the cell that line the air passages. As tumors grow, they interfere with the lungs’ ability to transport oxygen to the b ...
... Lung Cancer and Cancers Lung Cancer occurs when abnormal cells in one or both lungs grow rapidly and form a mass of cells which is called a tumor. The growth usually happens in the cell that line the air passages. As tumors grow, they interfere with the lungs’ ability to transport oxygen to the b ...
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.