Organ Function: Quiz 2

Front 1

Which organ controls the "fight or flight" response?

Back 1

Adrenal gland:

The adrenal glands produce hormones that trigger the "fight or flight" response. These hormones -- adrenaline and noradrenaline -- increase blood pressure, heart rate and oxygen intake and prepare the body for action.

Front 2

Which sensory organ contains three semicircular canals that assist with balance by detecting movement of the head?

Back 2

Ears:

The fluid-filled semicircular canals are located in the inner ear and contain hair cells that are activated by movement of fluid within each canal.

Front 3

The organ that regulates metabolism, growth and maturation of the human body is called what?

Back 3

Thyroid gland:

The thyroid gland regulates metabolism, growth and maturation of the human body.

Front 4

What is the term for being born with only one kidney?

Back 4

Renal agenesis:

Renal agenesis is a condition in which a person is missing a kidney at birth. Most people with renal agenesis experience no symptoms or complications.

Front 5

Which sensory system contains an organ called the cochlea?

Back 5

Ear:

The cochlea is a fluid-filled organ that translates sound into nerve impulses which are sent to the brain. Humans have two cochlea. They are snail-shaped caverns in the mastoid bones behind each ear.

Front 6

Which lung is larger?

Back 6

Right:

The right lung is larger and heavier than the left. The left lung is smaller because of the position of the heart.

Front 7

Which muscular female organ can stretch to the size of a watermelon?

Back 7

Uterus:

The uterus is a muscular female organ located in the pelvis. It has a pre-pregnancy size of a pear, but during pregnancy it can stretch to the size of a watermelon.

Front 8

Rod and cone cells are a crucial part of which sensory organ?

Back 8

Eyes:

Rod and cone cells are the two photoreceptors of the human eye. Rods are most sensitive to light and dark, shapes and movement. Cones are sensitive to color and fine detail.

Front 9

TRUE OR FALSE: The human small intestine is the longest part of the digestive system.

Back 9

True:

At a length of approximately 22 feet, the small intestine is indeed the longest part of the digestive system.

Front 10

Which organ stores liquid waste in the human body?

Back 10

Bladder:

The bladder is a muscular organ that stores urine before expelling it through the urethra.

Front 11

The trachea, bronchi and alveoli are parts of which human organ system?

Back 11

Respiratory:

The trachea, bronchi and alveoli are all parts of the respiratory system.

Front 12

What is the smallest organ in the human body?

Back 12

Pineal gland:

The pineal gland is the smallest human organ and it is located near the center of the brain. The pineal gland produces a hormone called melatonin, which affects how humans sleep.

Front 13

What is the largest organ of the human body?

Back 13

Skin:

The skin is classified as an organ and is the largest organ of the human body. The skin of an average person weighs about 10 pounds (4.536KG) and has a surface area of roughly 20 square feet.

Front 14

A group of tissues that perform a specific function or set of functions is called?

Back 14

Organ:

An organ is defined as a group of tissues that perform a specific function or group of functions.

Front 15

Which bean-shaped organ is located between the esophagus and small intestine?

Back 15

Stomach:

The stomach is a bean-shaped organ about the size of a fist. Food is swallowed through the esophagus and churned by the stomach before passing on to the small intestine.

Front 16

Which organ stores bile until it is needed for digestion?

Back 16

Gall bladder:

The gall bladder is located under the right lobe of the liver and stores bile for digestion. Bile is a yellow-brown fluid that is excreted into the small intestine to break down fatty foods.

Front 17

Kidneys are part of which organ system?

Back 17

Urinary:

As part of the urinary system, kidneys filter blood, balance electrolytes and produce urine.

Front 18

Which organ system sends chemical messages through the bloodstream to target specific organs?

Back 18

Endocrine:

The endocrine system is made up of glands and secretes hormones to regulate a number of body functions.

Front 19

TRUE OR FALSE: Oxygen and carbon monoxide gas exchange takes place in the lungs.

Back 19

False:

Carbon dioxide (not monoxide) and oxygen are exchanged in the lungs. Oxygen is inhaled into the lungs and carbon dioxide is exhaled.

Front 20

Which organ is responsible for secreting insulin into the bloodstream?

Back 20

Pancreas:

The pancreas creates and releases insulin into the bloodstream.