Semester 2 /Neuro, Week 2 - Orbit, Face, Skull
9 Questions
| Total Attempts: 56
Questions and Answers
- 1.A 50-year old man present with complaint of double vision. While testing the patient's right eye movement during a cranial nerve test, the physician noted that the patient cannot elevate the adducted eye. Which of the following muscles is involved?
- A.
Superior rectus
- B.
Inferior rectus
- C.
Lateral rectus
- D.
Superior oblique
- E.
Inferior oblique
- 2.A patient is found to be unable to dilate his pupil and has drooping left eyelid ptosis). Ptosis disappears when he looks up. What structure is damaged?
- A.
Vagus nerve
- B.
Oculomotor nerve
- C.
Superior cervical ganglion
- D.
Optic nerve
- E.
Superior rectus muscle
- 3.In a blow-out fracture of the orbit, the floor of the orbit is fractured. Which of the following movements of the eyeball is lost?
- A.
Lateral
- B.
Upward
- C.
Medial
- D.
Downward
- E.
Downward and lateral
- 4.A 16-year-old teenager presents with complaint of double vision. The chief resident asked you to assess the functions of the extrinsic eye muscles. While testing the patient's left eye movement, you noted that the patient cannot depress the adducted eye. Which of the following muscles is involved?
- A.
Superior rectus
- B.
Superior oblique
- C.
Inferior rectus
- D.
Lateral rectus
- E.
Inferior oblique
- 5.A 20-year old man presents with double vision after a car accident. The ER resident tests the eye muscle functions and finds that the patient is unable to elevate the adducted right eye. Which muscle is not functioning properly?
- A.
Inferior rectus
- B.
Superior oblique
- C.
Superior rectus
- D.
Lateral rectus
- E.
Inferior oblique
- 6.Which of the following layers of the scalp constitute the "danger" layer?
- A.
Loose areolar tissue layer
- B.
Skin
- C.
Pericranium
- D.
Subcutaneous layer
- E.
Epicranial aponeurosis
- 7.At Pterion, which of the following bones does not articulate?
- A.
Parietal
- B.
Frontal
- C.
Zygomatic
- D.
Temporal
- E.
Sphenoid
- 8.An elderly patient developed fever and worsening headache a few days after sustaining a scalp laceration and subsequent infection due to a car accident. At the hospital the case was diagnosed as meningitis and superior sagittal sinus thrombosis. The attending physician suggested that infection to the sinus initially spread through one of the scalp layers. The scalp layer involved is:
- A.
Connective tissue (dense)
- B.
Areolar tissue
- C.
Epicranial aponeurosis
- D.
Periosteum
- E.
Skin
- 9.A 25-year-old woman sustains a head injury. A radiograph of the skull shows a fracture of the foramen ovale. Which of the following nerves would most likely be damaged by this event?
- A.
Ophthalmic nerve
- B.
Maxillary nerve
- C.
Optic nerve
- D.
Mandibular nerve
- E.
Trochlear nerve
.
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