PBS Quiz 2.1.3-2.1.4

The outermost layer of the eye is called the

• retina.

• cochlea.

• cornea.

• oval window.

The bones found in the ears that transmit sound to the cochlea which converts the sound waves into nerve impulse (later sent to the brain) are called _____________.

A condition where the blood flows backwards (from the direction it is supposed to go) in the heart is called

• mitral valve regurgitation.

• emphysema.

• rhonchi.

• melanoma.

The device shown here which helps in examining inside the ear and in the nasal cavity is called

• otoscope.

• ophthalmoscope.

• sphygmomanometer.

• oximeter.

In the ABCDE of skin cancer self-examination, what does "E" stand for?

Listen to the audio.

A stethoscope is used to listen to the sound of a patient's heartbeat.

The patient most likely

• has a normal healthy heart.

• is having a heart attack.

• has hypertension.

• has a heart murmur.

Answer explanation

The whooshing sound most likely means a person has a heart murmur due to a flow of blood that is not smooth due to defects like a valve not working properly.

A snore-like sound heard when the airways are partially blocked or obstructed and caused by conditions such as pneumonia, bronchitis or cystic fibrosis is called

• wheezing.

• rhonchi.

• stridor.

• rale.

Which of the four components of blood carries oxygen and iron?

• leukocytes

• thrombocytes

• plasma

• erythrocytes

Answer explanation

Erythrocytes = red blood cells

Leukocytes = white blood cells

Thrombocytes = platelets

Using the figure shown, which letter represents the most commonly used blood vessel from which to draw blood?

• E

• G

• H

• A

Answer explanation

H - median cubital vein

A professional whose major duty is the draw blood from patients for lab analysis is called a(n)

• hematologist.

• phlebotomist.

• triage nurse.

• primary care physician.