lab 4 answers to lab questions Flashcards
is there a noiticeable difference between lying down and sitting for blood pressure?
yes, it is lower when lying down because postural changes affects blood pressure
what happened to blood pressure immediately after standing?
it raises because of postural change and gravity, blood works harder to be pumps because of the sudden change in orientation
how does blood pressure differ when standing for 3 minutes vs jogging for 5
blood pressure increases a lot when jogging vs standing, since moving the body more increases blood pressure
how does blood pressure change when subjects arm is dropped in cold water for a while
Bp will rise because of cold temperature, the vasoconstriction occurs which prioritizes blood flow to visceral organs
valves and unidirectional flow, did vein refill when drained by using proximal finger?
no bc veins are only one way valves
did the vein refill when you removed the distal finger
yes, it allowed capillary blood flow
what can u say about direction of blood flow in veins of hand
blood flows from distal to proximal
how did pulse rate change between resting and head in water
the pulse rate decreases due to diving bradycardia
how does BP change between. resting and head in water
BP raises due to peripheral vasoconstriction
how ddi pulse rate change over the 4 minute interval from when subject left the water
pulse rate raises back to normal, it took a dive down so now it goes back up because she is not in the water
how to calculate index of physical fitness
index= duration of exercise in seconds times 100 over 2 times sum of 3 pulse recovery counts
interpert a score from index of physical fitness- does it indicate good average or poor fitness condition
below 55: poor
55-64: low average
65-79: high average
80-90: good
above 90: excellent
