extra stuff

Question 1

proximal vs distal in terms of flow

Answer 1

upstream vs downstream
eg: capillaries distal to arteries, proximal to veins

Question 2

sign vs symptom

Answer 2

objective vs subjective
eg: dent in skull (sign), headache (symptom)
sign - if they were dead you could still identify it

Question 3

arm and leg refer to

Answer 3

arm: upper arm (lower is forearm)
leg: lower leg (upper is thigh)

Question 4

stenosis

Answer 4

narrowing