PC Medical Terminology & Anatomy 3 — Questions and Answers
Question 1: The term 'onychomycosis' refers to a fungal infection of which structure?
- Skin between the toes
- Nail (Correct answer)
- Bursa
- Periosteum
Correct answer: Nail
Onychomycosis combines 'onycho-' (nail), 'myco-' (fungus), and '-osis' (condition), meaning fungal disease of the nail.
Question 2: Which bone forms the posterior prominence of the heel?
- Talus
- Navicular
- Calcaneus (Correct answer)
- Cuboid
Correct answer: Calcaneus
The calcaneus (heel bone) forms the posterior projection of the foot and serves as the attachment site for the Achilles tendon.
Question 3: What does the prefix 'sub-' indicate in the term 'subungual'?
- Above
- Below or beneath (Correct answer)
- Beside
- Within
Correct answer: Below or beneath
Sub- means below or beneath; subungual therefore means beneath the nail plate.
Question 4: The peroneus longus muscle is also correctly named the:
- Fibularis longus (Correct answer)
- Tibialis posterior
- Extensor hallucis longus
- Flexor hallucis brevis
Correct answer: Fibularis longus
Modern anatomical nomenclature renames peroneus longus to fibularis longus, reflecting its origin along the fibula.
Question 5: Which term describes pain in the ball of the foot (metatarsal head region)?
- Tarsalgia
- Metatarsalgia (Correct answer)
- Calcanodynia
- Phalangalgia
Correct answer: Metatarsalgia
Metatarsalgia is pain localized to the metatarsal head region, derived from 'metatarsal' and '-algia' (pain).
Question 6: The sinus tarsi is a canal located between which two bones?
- Calcaneus and cuboid
- Talus and calcaneus (Correct answer)
- Navicular and medial cuneiform
- Talus and navicular
Correct answer: Talus and calcaneus
The sinus tarsi is the tunnel-like space between the talus superiorly and the calcaneus inferiorly, running obliquely from anterolateral to posteromedial.
Question 7: Which term describes a congenital absence of a toe?
- Polydactyly
- Syndactyly
- Adactyly (Correct answer)
- Brachydactyly
Correct answer: Adactyly
Adactyly (a- meaning without, dactyly meaning digit) refers to congenital absence of one or more digits.
PC Medical Terminology & Anatomy 3
The term 'onychomycosis' refers to a fungal infection of which structure?