Exam 1 Flashcards
Anatomical position
a standard position of the body: standing erect, facing directly forward, feet pointed forward and slightly apart, and arms hanging down at the sides with palms facing forward. This position is used as a reference to describe sites or motions of various parts of the body.
Abdominal cavity
the cavity containing the major viscera; in mammals it is separated from the thorax by the diaphragm.
Anatomy
the science of the structure of living organisms.
Anion
Ion carrying a negative charge
Anterior
In front
Atom
the smallest particle of an element with all the properties of the element; it consists of a positively charged nucleus (made up of protons and neutrons) and negatively charged electrons, which move in orbits about the nucleus.
Atomic numbers
Number of protons in each type of atom
ATP
Adenosine triphosphate; an adenosine-derived nucleotide that supplies large amounts of energy to cells for various biochemical processes, including muscle contraction and sugar metabolism, through its hydrolysis to ADP.
Blood pH
the hydrogen ion concentration of the blood, a measure of blood acidity or alkalinity. The normal pH values for arterial whole blood are 7.35 to 7.454; for venous whole blood, 7.36 to 7.41; for venous serum or plasma, 7.35 to 7.45.
Buffers
Mixture of an acid and a base that reduces any changes in pH that would otherwise occur in a solution when acid or base is added to the solution.
Cardiovascular system
the organs and tissues involved in circulating blood and lymph through the body ( circulatory system)
Carbohydrates
Compounds, such as cellulose, sugar, and starch, that contain only carbon, hydrogen, and oxygen, and are a major part of the diets of people and other animals.
Catabolism
All of the decomposition reactions that occur in the body. RELEASES ENERGY.
Cation
Ions carrying a positive charge.
Cephalic
Pertaining to the head.