Physiology Lab Exam 1

Front 1

interpolate

Back 1

estimate values b/t measured values (line graph)

Front 2

extrapolate

Back 2

extending graph beyond plotted points (line graph)

Front 3

baseline

Back 3

initial collection of data that serves as a basis for comparison with the experimental data

Front 4

blind study

Back 4

experimental design in which the subjects do not know whether they are in the experimental or control group

Front 5

control

Back 5

standard of comparison; the control group recieves identical treatment to the experimental group with the omission of the actual experimental treatment

Front 6

controlled variable

Back 6

variable that is kept constant by the investigator

Front 7

crossover study

Back 7

experimental design in which the subjects serve as their own controls; subjects are assigned to both the experimental and control groups in a randomized order

Front 8

data notebook

Back 8

organizational tool for documenting each aspect of the experiment in detail

Front 9

dependent variable

Back 9

variable that is observed or measured by the investigator

Front 10

double-blind study

Back 10

experimental design in which the subjects and the investigators are unaware as to whether the subjects are in the experimental or control group

Front 11

experimental group

Back 11

group receiving the experimental treatment

Front 12

hypothesis

Back 12

logical prediction of the experimental results that can be tested

Front 13

independent variable

Back 13

variable that is manipulated by the investigator

Front 14

placebo

Back 14

medication with no active ingredient or procedure without any medical benefit; type of control

Front 15

population

Back 15

specific groiup being tested

Front 16

research question

Back 16

focused and testable question

Front 17

sample

Back 17

representative portion of the larger population

Front 18

scientific method

Back 18

process by which scientific knowledge is generated

Front 19

stressor

Back 19

stress causing agent

Front 20

general adaptation syndrome

Back 20

adrenal hypertrophy (enlargement), atropy of thymus, gastric ulcers in response to stress - 3 phases, alarm reaction, resistance, exhaustion

Front 21

trend

Back 21

best fit line (scatter plot)

Front 22

alarm reaction

Back 22

mobilize resources; SNS - 2 synapses: CNS --> ACh (nicotinic receptor) in autonomic ganglion --> Norepi (adrenergic receptor) at target tissue

Front 23

resistance phase

Back 23

adapt to stressor and try to sustain energy; HPA axis: hypothalamus releases CRH --> ant pituitary releases ACTH --> adrenal cort. releases cortisol (mobilizes energy stores)

Front 24

exhaustion phase

Back 24

energy stores depleted

Front 25

TSST (Trier Social Stress Test)

Back 25

public speaking and mental arithmetic

Front 26

Percent change

Back 26

(new-old)/old*100

Front 27

directional hypothesis

Back 27

proposes increase/decrease in dependent variable

Front 28

non-directional hypothesis

Back 28

proposes a change, but relationship unknown

Front 29

bar graphs

Back 29

categorical data

Front 30

line graphs

Back 30

x axis (independent variable) is continuous

Front 31

scatterplot

Back 31

relationship b/t 2 variables