Senses

‏Where are receptors for touch and pressure located?

• ‏ • A. In the epidermis

• ‏ • B. In the dermis and subcutaneous tissues

• ‏ • C. In the blood vessels

• ‏ • D. In the nails

‏What are the five types of taste receptors?

• ‏ • A. Sweet, sour, salty, bitter, and umami

• ‏ • B. Soft, hard, smooth, rough, and dry

• ‏ • C. Spicy, tangy, acidic, and metallic

• ‏ • D. Hot, cold, sweet, and sour

‏Which nerves transmit taste signals to the brain?

• ‏ • A. The facial, glossopharyngeal, and vagus nerves

• ‏ • B. The optic nerve

• ‏ • C. The auditory nerve

• ‏ • D. The spinal cord

‏How many odors can the human brain distinguish?

• ‏ • A. 1,000

• ‏ • B. 5,000

• ‏ • C. 10,000

• ‏ • D. 20,000

‏ What is the function of the lacrimal glands?

• ‏ • A. To secrete tears that clean and protect the eye

• ‏ • B. To focus on objects

• ‏ • C. To detect light waves

• ‏ • D. To maintain eye shape

‏What is the optic disc?

• ‏ • A. The point where the optic nerve exits the eye

• ‏ • B. The area of sharp vision

• ‏ • C. The lens of the eye

• ‏ • D. The part that focuses light

‏How do sound vibrations travel from the outer ear to the inner ear?

• ‏ • A. Through the auditory nerve

• ‏ • B. Via the ossicles in the middle ear

• ‏ • C. Through the cochlea directly

• ‏ • D. Using the semicircular canals

‏What is the function of the Eustachian tube?

• ‏ • A. To equalize pressure in the middle ear

• ‏ • B. To amplify sound vibrations

• ‏ • C. To detect balance

• ‏ • D. To produce earwax

‏What do the semicircular canals do?

• ‏ • A. Detect balance

• ‏ • B. Detect sound vibrations

• ‏ • C. Transfer sound to the cochlea

• ‏ • D. Amplify sound waves

‏What is the function of earwax?

• ‏ • A. To trap foreign objects and repel insects

• ‏ • B. To lubricate the eardrum

• ‏ • C. To amplify sound

• ‏ • D. To clean the cochlea