no
The ear canal.
the birth canal
sponges let the water enter through the canal and circulates all over the body.
C1-8. These nerves enter from the eight cervical or neck vertebrae.
plasma
Ear canal
Through the mouth
that's easy it goes through the sieve plate, to the stone canal, then into the ring canal , to the radial canal and out the tube feet which are also used for respiration :)
because the sound waves enter your canal and passes it to to the nerve which shoots the message to your brain.
The ureters allow urine to pass into the bladder, the urethra allows urine to pass into the urinary canal.
The Pacific side. If you enter the canal on the Pacific side you travel northwest to reach the Caribbean.
allows blood flow to pass and sperms to enter