Biology : Human Organ Systems III

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_______ is a muscular leaf-like structure helpful in swallowing of food and speaking.

Urinary bladder

Blood is distributed to various parts of the body through blood vessels known as _______.

arteries

_______ is a tubular structure through which urine is excreted out of the body.

saliva

Oral cavity remains moist due to presence of a fluid known as _______.

Tongue

_______ is a sac-like structure which stores urine.

Urethra