Head — Flashcards

Flashcard 131: Cochlear duct is connected to the _____ by ductus reuniens.

Answer: saccule

Flashcard 132: The sclera is the thinnest _____ to the insertion of the rectus muscles.

Answer: posterior

Flashcard 133: The optic _____ is formed by the two roots of the lesser wing of the sphenoid.

Answer: foramen

Flashcard 134: The lateral surface of the tympanic membrane is _____ and the most depressed part of its concavity is called the umbo

Answer: concave

Flashcard 135: Relations of parotid gland:Superficial surface is related to the skin, superficial fascia, _____ nerve, parotid lymph nodes, and platysma.

Answer: greater auricular

Flashcard 136: Lateral semicircular canal, also called the _____ canal, lies in the horizontal plane

Answer: horizontal

Flashcard 137: The main muscles that open the jaw (depress the mandible) are the _____, digastric, and geniohyoid

Answer: lateral pterygoid

Extra: The lateral pterygoid is the primary muscle of mastication for jaw opening (mandibular depression). The suprahyoid muscles (digastric, geniohyoid, and mylohyoid) assist in depression when the hyoid bone is fixed by the infrahyoid muscles.

Flashcard 138: _____tympanum contains Head of the malleus, Incudomalleolar joint and Short process and body of incus

Answer: Epi

Flashcard 139: Dangerous area of the nose is bounded: - Laterally by the _____ turbinate - Medially by the corresponding part of the septum - Above by the cribriform plate of ethmoid

Answer: superior

Flashcard 140: The _____ of the orbit is formed by zygomatic and maxilla bone

Answer: floor