U8 Med Term 2 ears and eyes test review

The malleus, incus, and stapes are also called the:

• ossicles

• bony labyrinth

• semicircular canals

• cochlea

Answer explanation

The malleus, incus, and stapes are collectively known as the ossicles, which are the three small bones in the middle ear that play a crucial role in hearing.

The eye sits in a protective bony socket called the:

• orbit

• mastoid process

• lacrimal apparatus

• choroid

Answer explanation

The eye is housed in a protective bony socket known as the orbit. This structure provides support and protection for the eye, distinguishing it from other options like the mastoid process or lacrimal apparatus.

What part of the eye changes shape to adjust the size of the pupil?

• cornea

• iris

• retina

• choroid

Answer explanation

The iris is the part of the eye that changes shape to control the size of the pupil, regulating the amount of light that enters the eye. The cornea, retina, and choroid have different functions and do not adjust the pupil size.

What structure can be found in the inner ear?

• ceruminous glands

• stapes

• tympanic membrane

• cochlea

Answer explanation

The cochlea is a spiral-shaped structure in the inner ear responsible for converting sound vibrations into neural signals. The stapes is a bone in the middle ear, the tympanic membrane is the eardrum, and ceruminous glands produce earwax.

Which two terms describe the same structure?

• auricle and pinna

• eardrum and oval window

• eustachian tube and external auditory canal

• incus and stapes

Answer explanation

The terms 'auricle' and 'pinna' both refer to the outer ear structure that collects sound waves. They are interchangeable, while the other pairs describe different structures in the ear.

If someone has ptosis, what is drooping?

• upper eyelid

• iris

• lacrimal gland

• retina

Answer explanation

Ptosis refers to the drooping of the upper eyelid. This condition can affect vision and is often caused by muscle weakness or nerve damage, making 'upper eyelid' the correct answer.

What term describes the eye’s ability to adjust from near to distance vision?

• accommodation

• refraction

• visualization

• compensation

Answer explanation

The term 'accommodation' refers to the eye's ability to change its focus from near to far objects by adjusting the lens shape. This process is essential for clear vision at varying distances.

Keir has pain, redness, and light sensitivity after being poked in the eye. What’s likely?

• dacryoadenitis

• corneal ulcer

• corneal abrasion

• chalazion

Answer explanation

Keir's symptoms of pain, redness, and light sensitivity after an eye injury suggest a corneal abrasion, which is a scratch on the cornea. This condition commonly occurs from trauma, such as being poked in the eye.

The primary sign of glaucoma is:

• increased intraocular pressure

• items floating across the field of vision

• involuntary repetitive eye movements

• night blindness

Answer explanation

The primary sign of glaucoma is increased intraocular pressure, which can damage the optic nerve. Other options like floating items, eye movements, and night blindness are not primary indicators of glaucoma.

What is the medical term for ringing in the ears?

• tinnitus

• dystocia

• vertigo

• otalgia

Answer explanation

The medical term for ringing in the ears is 'tinnitus'. It is a common condition that can be caused by various factors, including exposure to loud noises, ear infections, or age-related hearing loss.