Question

Veins are thin walled and have valves ​

Answer 1

Answer:

Veins are thin walled and have valves. They mainly carry the deoxygenated blood. They are also deep seated inside our body.

Answer 2

Answer:

• ꜱᴏʟᴜᴛɪᴏɴ :

ᴠᴇɪɴꜱ ʜᴀᴠᴇ ᴛʜɪɴ ᴡᴀʟʟꜱ ʙᴇᴄᴀᴜꜱᴇ ᴛʜᴇ ʙʟᴏᴏᴅ ᴛʜᴇʀᴇ ɪꜱ ɴᴏ ʟᴏɴɢᴇʀ ᴜɴᴅᴇʀ ᴘʀᴇꜱꜱᴜʀᴇ ᴀɴᴅ ᴛʜᴇʏ ʜᴀᴠᴇ ᴠᴀʟᴠᴇꜱ ᴛᴏ ᴇɴꜱᴜʀᴇ ʙʟᴏᴏᴅ ꜰʟᴏᴡ ɪɴ ᴏɴᴇ ᴅɪʀᴇᴄᴛɪᴏɴ.

• ᴇxᴘʟᴀɪɴɪɴɢ :

ᴛʜᴇ ʙʟᴏᴏᴅ ꜰʟᴏᴡ ɪɴ ᴛʜᴇ ᴠᴇɪɴꜱ ɪꜱ ᴘᴀꜱꜱɪᴠᴇ ɪ.ᴇ ᴅᴏᴡɴ ᴀ ᴘʀᴇꜱꜱᴜʀᴇ ɢʀᴀᴅɪᴇɴᴛ ɪɴ ᴄᴏɴᴛʀᴀꜱᴛ ᴛᴏ ᴀʀᴛᴇʀɪᴀʟ ꜰʟᴏᴡ ᴡʜɪᴄʜ ᴏᴄᴄᴜʀꜱ ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ᴘʀᴇꜱꜱᴜʀᴇ ɢᴇɴᴇʀᴀᴛᴇᴅ ᴛᴏ ᴛʜᴇ ᴘᴜᴍᴘɪɴɢ ᴀᴄᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ʜᴇᴀʀᴛ ᴀɴᴅ ᴄᴀɴ ꜰʟᴏᴡ ᴀɢᴀɪɴꜱᴛ ᴀ ɢʀᴀᴅɪᴇɴᴛ. ꜱɪɴᴄᴇ ᴛʜᴇ ꜰʟᴏᴡ ɪꜱ ᴘᴀꜱꜱɪᴠᴇ ɪɴ ᴠᴇɪɴꜱ ᴛʜᴇ ᴘʀᴇꜱꜱᴜʀᴇ ᴡɪᴛʜɪɴ ᴛʜᴇ ᴠᴇɴᴏᴜꜱ ꜱʏꜱᴛᴇᴍ ɪꜱ ʟᴏᴡ ᴀɴᴅ ᴄᴏɴꜱᴇQᴜᴇɴᴛʟʏ ᴛʜᴇ ᴡᴀʟʟ ꜱᴛʀᴇꜱꜱ ɪɴ ᴛʜᴇ ᴠᴇɪɴꜱ ɪꜱ ʟᴇꜱꜱ .ᴛʜᴇʏ ᴀʀᴇ ᴛʜᴇʀᴇꜰᴏʀᴇ ᴛʜɪɴ ᴡᴀʟʟᴇᴅ.ᴡʜᴇɴ ᴛʜᴇʀᴇ ɪꜱ ᴀ ʟᴏᴡ ᴘʀᴇꜱꜱᴜʀᴇ ᴘᴀꜱꜱɪᴠᴇ ꜰʟᴏᴡ ꜰʀᴏᴍ ᴛʜᴇ ʟᴏᴡᴇʀ ᴘᴀʀᴛꜱ ᴏꜰ ᴛʜᴇ ʙᴏᴅʏ ɢʀᴀᴠɪᴛʏ ᴡᴏʀᴋꜱ ᴀɢᴀɪɴꜱᴛ ɪᴛ . ᴛʜᴇʀᴇꜰᴏʀᴇ ᴛᴏ ᴘʀᴇᴠᴇɴᴛ ᴛʜᴇ ʙʟᴏᴏᴅ ꜰʀᴏᴍ ꜰʟᴏᴡɪɴɢ ʙᴀᴄᴋᴡᴀʀᴅꜱ ᴠᴇɪɴꜱ ʜᴀᴠᴇ ᴠᴀʟᴠᴇꜱ ᴡʜɪᴄʜ ᴇɴꜱᴜʀᴇ ᴛʜᴀᴛ ᴛʜᴇ ʙʟᴏᴏᴅ ᴏɴʟʏ ꜰʟᴏᴡꜱ ꜰᴏʀᴡᴀʀᴅ.