Nokea
The ophthalmic division of the trigeminal nerve
- A. Enters the face via the inferior orbital fissure
- B. Supplies sympathetic fibres to constrictor papillae muscles
- C. Supplies sensation to the forehead and upper eyelid, excluding the orbit
- D. Gives five branches, two of which contain sympathetic as well as sensory fibres
Correct Answer: D
Rationale: The ophthalmic division (V1) of the trigeminal nerve gives five branches, including the lacrimal and frontal nerves, which supply sensation to the forehead and upper eyelid. It does not control eye movement.
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Nerve impulses are carried to another part of the body by a neuron's (nerve cell):
- A. dendrites
- B. axon
- C. neuron cell body
- D. synapse
Correct Answer: B
Rationale: The axon is the part of a neuron responsible for carrying nerve impulses away from the cell body to other neurons, muscles, or glands. It is a long, slender projection that conducts electrical signals, known as action potentials, to the axon terminals. At the terminals, the signal triggers the release of neurotransmitters into the synapse, facilitating communication with the next neuron or target cell. The axon is essential for transmitting information across the nervous system.
The foremost observation to make when providing care to a patient in status epilepticus is
- A. hydration
- B. patency of airway
- C. temperature elevation
- D. response to environmental stimuli
Correct Answer: B
Rationale: Maintaining airway patency is critical in status epilepticus to ensure adequate oxygenation.
Which of the following statement is correct about Cerebellum?
- A. It regulates the muscular movement for locomotion.
- B. It is a part of brain.
- C. Both A and B
- D. Neither A nor B
Correct Answer: C
Rationale: The cerebellum is a part of the brain located above and behind the medulla. It plays a crucial role in coordinating voluntary movements, maintaining balance, and ensuring smooth muscular activity for locomotion. Therefore, both statements A and B are correct.
What is a disadvantage of open reduction and internal fixation of a fracture compared to closed reduction?
- A. Infection
- B. Skin irritation
- C. Nerve impairment
- D. Complications of immobility
Correct Answer: A
Rationale: Open reduction involves surgery, which increases the risk of infection.
What is a normal finding when assessing the sensory function of a patient?
- A. The patient should be able to identify light touch, pain, and temperature accurately.
- B. The patient should have a decreased sense of touch.
- C. The patient should report numbness or tingling.
- D. The patient should have difficulty identifying sensations.
Correct Answer: A
Rationale: Normal sensory function includes the ability to accurately identify light touch, pain, and temperature. Decreased sensation, numbness, or difficulty identifying sensations are abnormal findings.