A & P quiz #1

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readyreg29
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242659
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A & P quiz #1
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2013-11-15 12:55:17
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MEDIC 2013
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  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
    The muscular system
  2. What are the primary functions of the Skeletal system
    • Structural support
    • Protection (body's organs)
    • Movement
    • Blood cell production(red,white,platelets)
    • Storage (minerals: calcium & phosphorus)
  3. Any substance that contains free ions that behaves as an electrically conductive medium (conducts electricity).

    All higher forms of life cannot exist without
    Electrolyte
  4. 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
    Ion
  5. An atom that gains electrons and has a net negative charge and is known as an

    Ions with a negative charge
    Anion
  6. A neutral atom that loses one or more electrons and has a net positive charge is known as a

    Ions with a positive charge
    Cation
  7. 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
    Electrolytes
  8. The measure of acidity or alkalinety of a solution
    pH
  9. If a pH scale ranges from 0 to 14 what does a midpoint scale 7 mean:
    It has a equal number of hydrogen and hydroxide ions
  10. What is the pH scale of water
    • 7 (neutral)
    • Neither acidic nor alkalinic
  11. Measurents of less than 7 pH are considered
    • Acidic
    • meaning there are more hydrogen ions than hydroxide ions
  12. Measurements of more than 7 pH are considered
    • Alkaline
    • meaning there are more hydroxide ions than hydrogen ions
  13. The normal pH of blood:
    7.35 to 7.45
  14. An abnormal physiologic state caused by blood pH that is lower than 7.35
    Acidosis
  15. Results from blood pH that is higher than 7.45
    • Alkalosis
    • (al·ka·lo·sis)
  16. If pH rises above 7.8 it generally causes
    Uncontrollable and sustained skeletal muscle contractions
  17. If pH falls below 7 what may occur
    Coma
  18. A substance that increases the concentration of hydrogen ions in a water solution.

    Electrolytes that release ions in water
    Acid
  19. A substance that decreases the concentration of hydrogen ions

    Electrolytes that realease ions that bond with hydrogen ions
    Bases
  20. Cacium ions are used in:
    Bone development, muscle contraction, and blood clotting

    Ca+2
  21. Chlorine ions assists in:
    Maintaining water balance

    Cl-
  22. Potassium ions are needed for:
    Cell membrane polarization

    K+
  23. Magnesium ions are important for:
    Formation of bone tissue and certain metabolic processes

    Mg+2
  24. Sodium ions are needed for:
    Cell membrane polarization and to maintain water balance

    Na+
  25. Movement of gas from an area of higher concentration to an area of lower concentration
    Diffusion
  26. 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
    Active transport
  27. 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
    Osmosis
  28. Process whereby a carrier molecule moves substances in or out of cells from areas of higher to lower concentration
    Facilitated diffusion
  29. Examples of pH values of acids
    • Saliva 6
    • Black coffee 5
    • Lemon juice 2
    • Conentrated hydrochloric acid 0
  30. Examples of pH values of bases
    • Ocean water 8
    • Bleach 9.5
    • Oven cleaner 13
    • Concentrated sodium hydroxide 14
  31. The uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants
    Active transport
  32. Excessive sweating, dehydration, vomiting or diarrhea can cause a loss of _____________ and can severely impact the healthy
    functioning of the body
    Electrolytes
  33. Common electrolytes found in the body include:
    • Calcium
    • Chlorine
    • Magnesium
    • Phosphate
    • Potassium
    • Sodium
  34. 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'.
    Osmosis
  35. 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
    C.osmosis
    (this multiple choice question has been scrambled)
  36. What is the maintenance of a stable internal physiologic environment known as?
    Homeostasis
  37. The study of the structure and make up of the organism
    Anatomy
  38. The study of the processes and functions of the body
    • Physiology
    • (fiz-e-al-o-g)
  39. The "powerhouse" of cells
    Have double membranes that produce energy (ATP)
    Liver, Kidneys, & Muscles have a large amount
    Mitochondria
  40. The joints that are the most complex, which allow free movement and are surrounded by an outer layer of ligaments forming a capsule
    Synovial joints
  41. The kidneys are found in which body cavity
    Retroperitoneal
  42. The neurotransmitter that stimulates skeletal muscle to contract is called:
    Acetylcholine
  43. The portion of the brain that is responsible for emotions, temperature control, and interface with the endocrine system is called:
    • Diencephalon
    • (Hypothalamus)
  44. The occipital lobe of the brain is responsible for the
    Vision and storage of visual memories

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