LABS 1-6 Flashcards
What are the reasons to wear gloves?
There are two.
To protect yourself and others from harmful materials.
To prevent contamination of the chemicals.
When will you remove your gloves in the lab?
When you need to take notes, turn pages, or use the computer.
What are the rules to maintain personal safety?
Wear your PPE.
Shoes must cover the whole foot (closed-toe and covered-heels).
Long hair must be put up.
Baggy clothes and dangling accessories must be secured.
No food nor drink.
How must the laboratory be left after you leave?
The same or cleaner.
What must you do before placing your own materials?
Disinfect your bench.
What must you do after putting away materials after your expirament?
Clean and disinfect your bench.
What is the proper way to handle your laboratory aprons?
Disinfect them before and after use.
What is the last thing you do before leaving the lab?
Wash your hands so that you do not bring contaminants outside.
Name the waste containers.
There are 4. Glass waste. Specimen waste. Sharp object waste. Chemical waste (non-hazardous).
Explain why only metric units are used in scientific research?
All scientists use the same units to ensure consistency of collected data.
What are the basic units of the metric system?
There are 4. Grams(g) for weight. Meters(m) for length. Liters(l) for volume. Degrees Celsius for temperature. (Cells-See-uS)
What does “to tare a scale” mean?
Set the scale to zero before weighing an object.
At what degrees Celsius will water freeze?
0*C
At what degrees Celsius will water boil?
100*C
When using a glass thermometer, when do you take the measurement?
Wait for the mercury to come to a stop before recording the reading.
What is a meniscus?
The curved appearance at the surface of a liquid being measured. (Readings are taken from the bottom of the curve).
Where do you need to place your eyes to record an accurate reading of volume?
Exactly parallel to the meniscus.
Why is volume displacement used to calculate the volume of some objects?
Because it can be difficult to accurately measure oddly shaped objects.
What activities are you allowed to perform in the laboratory?
Only those authorized by your instructor.
What types of activities are prohibited in the laboratory?
No horseplay, practical jokes, or pranks.
Do not apply cosmetics.
Do not eat, drink, chew gum or tobacco.
What areas or rooms are students not permitted to go without specific permission given by the instructor?
There are two.
Science storage rooms
Preparation areas
What must you know about the safety equipment?
Location and how they work.
Name some of the safety equipment.
We are given 5. Eyewash station Safety shower Fire extinguishers spill kits Safety Data Sheets
What are the steps of the scientific method?
There are six. Make observations. Gather information. Propose a hypothesis. Test the hypothesis. Present and analyze results. Conclusion.
Describe the step of make observations.
Observe an environment, condition, or situation.
Describe the step of gather information.
Gather an analyze information about topics that are directly related to your observations.
Describe the step of propose a hypothesis
Create an “educated guess” of a possible explanation of your observations.
Describe the step of test the hypothesis.
Perform an experiment and collect data to test the hypothesis.
Describe the step of present and analyze results.
Analyze results and the collected data. Results can be examined in many formats such as tables, figures, and graphs.
Describe the step of conclusion.
Determine how the data supports or rejects the hypothesis.
What are the sections of a lab report?
There are five. Introduction. Materials and Methods. Results. Discussion. Conclusion.
Describe the Introduction section.
The topics of the experiment are presented answering these four questions.
What were the topics of the laboratory?
What was the experimenter trying to discover in the laboratory?
What was the hypothesis?
What is currently known about the topic?
Describe the Materials and Methods section.
The materials that were used in the experiment are presented.
The procedure described in detail so that someone could repeat the experiment.
Describe the Results section.
The data is presented. This section can include additional visual representations of the data.
Describe the Discussion section.
Interpretations of the analysis are discussed including the hypothesis and expectations based on what is already known.
This section also includes inconsistencies and possible sources of areas.
Why are significant figures important?
The significant figures in a number describe the precision and uncertainty of a measurement.
How does significant figures work in addition and subtraction?
the answer should be rounded so that the answer has the same number of decimal places as the quantity in the calculation with the smallest number of decimal places
How does significant figures work in multiplication and division?
the answer should be rounded so that the answer has the same number of significant figures as the quantity in the calculation with the smallest number of significant figures
What are the characteristics of the anatomical position?
There are five.
Standing upright in front of the observer.
Head level and eyes forward.
Legs straight, feet flat, and pointed forward.
Arms at sides, straight, palms facing forward, and thumbs to the side.
Right and left refers to the subject, not the observer.
Define superior
Above
Define cranial
Towards the head or superior region
Also cephalic
Define cephalic
Towards the head or superior region
Also cranial
Define inferior
Below
Define anterior
Closer to the front of the body
Also ventral
Define ventral
Closer to the front of the body
Also anterior
Define posterior
Closer to the back of the body
Also dorsal
Define dorsal
Closer to the back of the body
Also posterior
Define midline
a line down the center of the body dividing it into halves
Define medial
Closer to the midline
Define lateral
Further from the midline
Define proximal
closer to where the limb attaches to the body (only used to describe parts of a limb)
Define distal
further from where the limb attaches to the body (only used to describe parts of a limb)
Define superficial
Towards the surface of the body.
Define deep
Towards the interior of the body.
Define ipsilateral
On the same side of the body.
Define contralateral
On opposite sides of the body.
Define afferent
To carry forward (such as with blood vessels and nerves)
AFF-ER-ENT
A-E-E
Define efferent
To carry away (such as with blood vessels and nerves)
EFF-ER-ENT
E-E-E
Describe the sagittal plane
Cuts into right and left halves
Describe a midsagittal plane
Cuts into equal right and left halves
Describe parasagittal plane
Cuts into unequal right and left portions
