Nokea
Which of the following diets will provide the greatest symptomatic relief for Mr. Sands?
- A. Clear liquid diet
- B. Soft diet with frequent meals
- C. Regular diet
- D. High-residue diet
Correct Answer: B
Rationale: A soft diet with frequent meals reduces strain on the esophagus and stomach.
You may also like to solve these questions
What is the consequence for the ability of motor neurons to find their correct targets, if a section of the spinal cord is rotated, so that the antero-posterior axis is reversed?
- A. Anterior motor neurons enter the limb in a bundle in the posterior instead of the anterior, but then take novel pathways to find the correct anterior muscles to innervate.
- B. Anterior motor neurons enter the limb in a bundle in the posterior instead of the anterior, and follow pathways intended for posterior neurons to make contacts with posterior muscles.
- C. Anterior motor neurons change their course to enter the limb in the anterior, but take their usual pathways to find the correct anterior muscles.
- D. The motor neurons grow over to the other side of the spinal cord and resume their normal pathways into muscles on their normal side of the body.
Correct Answer: B
Rationale: When the antero-posterior axis of the spinal cord is reversed, motor neurons follow their intrinsic programming and enter the limb in the reversed position. They then innervate muscles based on their new position, leading to incorrect connections. This demonstrates the importance of spatial cues in guiding motor neurons to their correct targets.
Which of the following is an incorrect pairing?
- A. norepinephrine dilates the pupil
- B. epinephrine increases blood pressure
- C. acetylcholine decreases digestion
- D. norepinephrine increases heart rate
Correct Answer: C
Rationale: The correct answer is C because acetylcholine actually increases digestion by stimulating the release of digestive enzymes and promoting peristalsis. A is incorrect because norepinephrine dilates the pupil, B is incorrect because epinephrine does increase blood pressure, and D is incorrect because norepinephrine does increase heart rate. Remember, acetylcholine is primarily responsible for parasympathetic responses, which include rest and digest functions.
In humans, transmission of nerve impulses across a synaptic cleft is carried out by ________.
- A. sodium ions
- B. potassium ions
- C. neurotransmitter molecules
- D. the nodes of Ranvier
Correct Answer: C
Rationale: Transmission of nerve impulses across a synaptic cleft is mediated by neurotransmitter molecules. When an action potential reaches the axon terminal, it triggers the release of neurotransmitters into the synaptic cleft. These chemicals bind to receptors on the postsynaptic neuron, initiating a new electrical signal. Neurotransmitters are essential for communication between neurons and play a key role in neural signaling.
Which is the largest branch of the internal carotid artery?
- A. ophthalmic artery
- B. anterior cerebral artery
- C. middle cerebral artery
- D. striate artery
Correct Answer: C
Rationale: The middle cerebral artery is the largest branch of the internal carotid artery and supplies a significant portion of the cerebral cortex, including areas responsible for motor and sensory functions.
What is a normal response when testing cranial nerve IX (Glossopharyngeal nerve) and X (Vagus nerve)?
- A. The uvula should remain midline when the patient says "ah."
- B. The patient should be able to smell different scents.
- C. The patient should have normal hearing.
- D. The patient should exhibit symmetrical facial expressions.
Correct Answer: A
Rationale: Cranial nerves IX and X are tested by observing the uvula's position when the patient says "ah." A midline uvula indicates normal function. Smell, hearing, and facial expressions are assessed by other cranial nerves.