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NEET MDS Quiz - Practice Test

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anatomy - 3 Questions

1
Anatomy

Which of the following muscles has two separate functions in mandibular movement

1) Masseter
2) Geniohyoid
3) External(lateral)pterygoid
4) Buccinator

📝 Explanation:

The external (lateral) pterygoid muscle has two primary functions: it assists in depressing the mandible (opening the mouth) and in moving the mandible forward (protrusion). This dual function distinguishes it from other muscles of mastication, which primarily elevate the mandible.

2
Anatomy
The first bone to Ossify in the body is 1. Mandible 2 Maxilla 3. Clavicle 4. Calvarium

📝 Explanation:

Clavicle is the first bone to Ossify in the body

3
Anatomy
The most common site for CSF rhinorrhea

1. frontal bone
2. ethmoid bone
3. tegmen tympani
4. none

📝 Explanation:

Cerebrospinal fluid (CSF) rhinorrhea occurs when there is a leak of CSF through the nasal cavity, often due to a defect in the skull base. The ethmoid bone is the most common site for such leaks because of its thin structure and proximity to the nasal cavity.

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