Which of the Following Are Extensors of the Thumb at the Carpometacarpal

question 99

Multiple Choice

Which of the following are extensors of the thumb at the carpometacarpal and metacarpophalangeal joints?

• A)flexor pollicis brevis,flexor pollicis longus
• B)extensor pollicis longus,extensor pollicis brevis
• C)flexor pollicis longus,abductor pollicis longus
• D)flexor pollicis longus,extensor digitorum

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Definitions:

Malleus

A small bone in the middle ear that transmits sound vibrations from the eardrum to the inner ear.

Presbycusis

Age-related hearing loss, gradually occurring as individuals get older.

External Acoustic Meatus

The external passage of the ear leading to the tympanic membrane, or eardrum.

Auditory Canal

The tube that runs from the outer ear to the middle ear, transmitting sound waves collected by the ear's auricle (outer part) to the tympanic membrane.