Question

Pulmonary artery differs from pulmonary vein in having
(1) Thick wall
(2) Thin wall
(3) Valves
(4) Both (2) and (3)

Answer 1

hello

here's your answer

thin wall

I think but I m not sure

Answer 2

Answer:

ᴘᴜʟᴍᴏɴᴀʀʏ ᴀʀᴛᴇʀʏ ᴅɪғғᴇʀs ғʀᴏᴍ ᴘᴜʟᴍᴏɴᴀʀʏ ᴠᴇɪɴ ɪɴ ʜᴀᴠɪɴɢ

⬇

(2) ᴛʜɪɴ ᴡᴀʟʟ