Science Olympiad Miscellaneous Worksheet-1
Fill in the Blanks.
Bronchi are _______ in number.
Human heart is divided into _______ chambers.
There are total _______ premolars in an adult human being.
An average human adult has _______ teeth.
A healthy human adult has _______ number of bones.
_______ is the opening in the body through which feces are excreted.
Blood is distributed to various parts of the body through blood vessels known as _______.
Heart lies on the left side of the _______ cavity.
Complex food particles are broken into simple food particles through the process of _______.
_______ are called the organs of hearing.
Food descends from the mouth to the stomach through a muscular tube known as _______.
Kidneys are the main _______ organs.
_______ is also known as 'voice box'.
_______ are the main respiratory organs.
_______ is called the organ of smell.
Salivary glands secrete a fluid known as _______ which helps in digestion as well as in swallowing of food.
Oral cavity remains moist due to presence of a fluid known as _______.
_______ is a muscular leaf-like structure which is helpful in swallowing of food and speaking.
_______ is a tubular structure through which urine is excreted out of the body.
_______ is a sac-like structure which stores urine.
Blood is returned to the heart from various body parts through blood vessels known as _____.
Answer Key:
2
4
8
32
206
Anus
Arteries
Chest
Digestion
Ears
Esophagus
Excretory
Larynx
Lungs
Nose
Saliva
Saliva
Tongue
Urethra
Urinary bladder
Veins
