Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

17 Cards in this Set

  • Front
  • Back
Common unit of measurement for human cell
1 micrometer (um)=10^-6m
1 nanometer (nm)=10^-9m
Common unit of measurement for body weight
1 kilogram=2.2lbs
normal weight=60-70kg or 130-150lbs
"typical molecule" size= 1 thousandth of length of bacterium
new science- generally defined as study and manufacture of structures and devices with dimensions of about size of molecule
Normal size range for human cells
(diameter) 7-20um
Exceptions to size for human cells
human egg= 200um
neuron=10um to 1 m
muscle cell= 10-100um
liver cell= 100um
group of cells that possess similar structures, shapes, and functions
large groups of cells consisting of 1 or more tissues organized into a unit which carry out a specific function
composed of several organs which have common function or functions
Tissue (example)
epithelial, shape=rectangular or circular, functions= protection,secretion, absorption, locations= skin, linings of body cavities, arteries, veins and other tubular structures
Organ (example)
liver consists of epithelial tissue
System (example)
digestive= stomach, intestines, liver, pancreas
function= digest and absorb
maintenance of the internal environment
Physiological functions of skeletal system
protection of organs, site of synthesis and maturation of erythrocytes, leukocytes, and platelets, storage site for calcium
Bone Salt
primarily calcium carbonate
Bone matrix
primarily collagen
Intercellular matrix of bone
contains osteoblasts, osteocytes, and osteoclasts