A & P quiz #1

An organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture, and circulates blood throughout the body

What are the primary functions of the Skeletal system

Any substance that contains free ions that behaves as an electrically conductive medium (conducts electricity).

All higher forms of life cannot exist without

An atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge

An atom that gains electrons and has a net negative charge and is known as an

Ions with a negative charge

A neutral atom that loses one or more electrons and has a net positive charge is known as a

Ions with a positive charge

Substances that release ions in water.
When dissolved in water, the neg. & pos. ends of water molecules cause ions to separate; resulting in electrically charged particles

The measure of acidity or alkalinety of a solution

If a pH scale ranges from 0 to 14 what does a midpoint scale 7 mean:

What is the pH scale of water

Measurents of less than 7 pH are considered

Measurements of more than 7 pH are considered

The normal pH of blood:

An abnormal physiologic state caused by blood pH that is lower than 7.35

Results from blood pH that is higher than 7.45

If pH rises above 7.8 it generally causes

If pH falls below 7 what may occur

A substance that increases the concentration of hydrogen ions in a water solution.

Electrolytes that release ions in water

A substance that decreases the concentration of hydrogen ions

Electrolytes that realease ions that bond with hydrogen ions

Cacium ions are used in:

Chlorine ions assists in:

Potassium ions are needed for:

Magnesium ions are important for:

Sodium ions are needed for:

Movement of gas from an area of higher concentration to an area of lower concentration

Any number of transport methods used to move components across a cell membrane to create or maintain an imbalance of charges, usually against a concentration gradient and requiring the expenditure of energy

Movement of a solvent through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane

Process whereby a carrier molecule moves substances in or out of cells from areas of higher to lower concentration

Examples of pH values of acids

Examples of pH values of bases

The uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants

Excessive sweating, dehydration, vomiting or diarrhea can cause a loss of _____________ and can severely impact the healthy
functioning of the body

Common electrolytes found in the body include:

Responsible for the ability of plant roots to draw water from the soil

When potato slices are added to a high concentration of salt solution.
The water from inside the potato moves to the salt solution, causing the potato
to shrink and to lose its 'turgor pressure'.

Movement of a solvent from an area of low concentration to an area of higher concentration is known as
A. diffusion
B. active transport.
C. osmosis

What is the maintenance of a stable internal physiologic environment known as?

The study of the structure and make up of the organism

The study of the processes and functions of the body

The "powerhouse" of cells
Have double membranes that produce energy (ATP)
Liver, Kidneys, & Muscles have a large amount

The joints that are the most complex, which allow free movement and are surrounded by an outer layer of ligaments forming a capsule

The kidneys are found in which body cavity

The neurotransmitter that stimulates skeletal muscle to contract is called:

The portion of the brain that is responsible for emotions, temperature control, and interface with the endocrine system is called:

The occipital lobe of the brain is responsible for the