'Usually, this 5-inch body part is open to allow passage of air to & from the lungs'
the pharynx
THE PH FACTOR: Usually, this 5-inch body part is open to allow passage of air to & from the lungs
Usually, this 5-inch body part is open to allow passage of air to & from the lungs
Usually, this 5-inch body part is open to allow passage of air to & from the lungs
THE "PH" FACTOR
the pharynx
THE "PH" FACTOR