science test

Question 1

What are the two main organs in the nervous system?

Answer 1

Brain and spinal cord

Question 2

Name two systems the nervous system is made up of.

Answer 2

Central and peripheral

Question 3

What is the central nervous system made up of?

Answer 3

The brain and spinal cord

Question 4

What are neurons?

Answer 4

A nerve cell

Question 5

define the sensory neurons

Answer 5

the nerve cells that are activated by sensory input from the environment.

Question 6

define the motor neurons

Answer 6

Motor neurons - the cell that allows us to move and speak.

Question 7

What are neurotransmitters?

Answer 7

Chemical messengers that your body cannot function without.

Question 8

What is the function of the nervous system?

Answer 8

Transmits signals between the brain and the rest of the body.

Question 9

What is the main organ in the respiratory system?

Answer 9

Lungs

Question 10

How many lobes does the right lung have?

Answer 10

3

Question 11

How many lobes does the left lung have?

Answer 11

2

Question 12

What is the name of the gas we inhale?

Answer 12

Oxygen

Question 13

What is name of the gas we exhale?

Answer 13

Carbon dioxide

Question 14

What is another name for the larynyx?

Answer 14

Voice box

Question 15

Where does gas exchange take place?

Answer 15

Lungs

Question 16

Explain the pathway of inhalation.

Answer 16

Air travels down pharynyx, passes to larynx and into trachea.

Question 17

Explain the pathway of exhalation.

Answer 17

Carbon dioxide goes from capillaries around aveoli then up bronchioles to bronchi then to the trachea

Question 18

What is the function of the respiratory system?

Answer 18

Allows us to breathe

Question 19

What is the main organ in the circulatory system?

Answer 19

Heart

Question 20

How many chambers does the heart have?

Answer 20

Two upper and two lower.

Question 21

Name the chambers

Answer 21

Top two are called the right atrium and left atrium, bottom two are right and left ventricles.

Question 22

What is the aorta?

Answer 22

The largest artery of the body.

Question 23

hat is the function of the aorta?

Answer 23

Carries blood from the heart to the circulatory system

Question 24

Explain how oxygen is circulated into our cells.

Answer 24

Hemoglobin molecules inside red blood cells pick up and carry oxygen.

Question 25

Explain how carbon dioxide is circulated out of our body.

Answer 25

Through exhalation.

Question 26

hat is the function of the circulatory system?

Answer 26

Carries oxygen and nutrients and hormones to cells and removes waste products.

Question 27

What are the organs in the digestive tract?

Answer 27

Mouth, esophagus, stomach, small and large intestines and anus.

Question 28

Where does digestion begin?

Answer 28

Mouth

Question 29

What does the mouth produce?

Answer 29

Saliva

Question 30

What does saliva produce?

Answer 30

Amylase and lipase

Question 31

What does the stomach produce?

Answer 31

Enzymes and acids

Question 32

Where does digestion complete?

Answer 32

small intestine

Question 33

What is peristalsis?

Answer 33

A series of wave-like muscle contractions that moves food through the digestive tract

Question 34

What is feces?

Answer 34

Waste discharged from bowels

Question 35

Where is feces produced?

Answer 35

The large intestines

Question 36

What are the three organs that aid in digestion?

Answer 36

Liver, gallbladder, pancreas

Question 37

What does the liver produce?

Answer 37

Bile

Question 38

What does the pancreas produce?

Answer 38

Enzymes

Question 39

What are the main organs of the urinary system?

Answer 39

Kidneys, renal pelvis, ureters, bladder, and urethra

Question 40

What are the main organs of the urinary system?

Answer 40

Kidneys, renal pelvis, ureters, bladder, and urethra

Question 41

How is urine excreted through the body?

Answer 41

Out of the kidneys through the ureters to be stored in bladder and then through the urethra

Question 42

What does the urinary system produce?

Answer 42

Urine

Question 43

What is urine?

Answer 43

A watery yellowish fluid that’s stored in the bladder

Question 44

Where does the urinary collect in the urinary system?

Answer 44

Bladder

Question 45

What is the function of the urinary system?

Answer 45

To filter blood and create urine

Question 46

here does the cleansed blood return to?

Answer 46

The heart

Question 47

Where does the waste from the blood enter?

Answer 47

Kidney and urinary system

Question 48

The renal artery circulates unfiltered blood to

Answer 48

the kidneys.

Question 49

The renal artery circulates unfiltered blood to

Answer 49

the kidneys.

Question 50

The renal vein returns the filtered blood to

Answer 50

the heart.

Question 51

What is the function of the endocrine system?

Answer 51

Releases hormones into the bloodstream

Question 52

What are glands?

Answer 52

An organ that makes hormones, digestive juices, etc.

Question 53

What are hormones?

Answer 53

Your body’s chemical messengers.

Question 54

What is adrenaline?

Answer 54

A hormone secreted by the adrenal glands.

Question 55

What gland is the master gland?

Answer 55

The pituitary gland.

Question 56

s the function of the thyroid?

Answer 56

Metabolism, growth, and development of the human body.

Question 57

What is the name of the hormone the thyroid produces?

Answer 57

Triiodothyronine and thyroxine

Question 58

What is the function of the pancreas?

Answer 58

Creates enzymes to break down food.

Question 59

What is the male hormone?

Answer 59

Testosterone

Question 60

What is the female hormone?

Answer 60

Estrogen

Question 61

What is the name of the female organ that produces egg cells?

Answer 61

Ovary

Question 62

What is the name of the male organ that produces sperm?

Answer 62

Testes

Question 63

List the two organ systems that send messages throughout the body? Name the chemical produces by each system that sends the messages throughout the body.

Answer 63

Nervous system - neurotransmitters. Endocrine system - hormones

Question 64

List the three organ systems that produce waste in our body. Name the waste produced in each system.

Answer 64

Large intestine - feces, liver - bile, and lungs - carbon dioxide

Question 65

Food enters the small intestine to complete digestion, solid waste is removed from the body through the ____ in the form of feces.

Answer 65

large intestine

Question 66

Liquid waste is removed from the body through the ___system in the form of ___.

Answer 66

renal + urine