Which of the following would the nurse most likely expect to find when assessing a client diagnosed with a frontal lobe contusion (in the Broca's Area) following a motor vehicle accident?
Blurred vision
Difficulty speaking
Loss of tactile sensation
inability to hear high-pitched sounds
The Correct Answer is B
A. Blurred vision is generally associated with visual system issues, which involve the occipital lobe or the visual pathways rather than the frontal lobe. Broca’s area, located in the frontal lobe, is involved in speech production and not in vision processing.
B. Difficulty speaking is a key symptom associated with damage to Broca’s area, which is located in the frontal lobe and responsible for speech production. A contusion in this area can lead to expressive aphasia, where the individual has trouble forming grammatically correct sentences and articulating words, while comprehension remains relatively intact.
C. Loss of tactile sensation would generally be associated with damage to the parietal lobe, where the primary somatosensory cortex is located. The parietal lobe processes sensory information such as touch, temperature, and pain. Since Broca’s area is located in the frontal lobe and primarily deals with language production, loss of tactile sensation is not typically expected from a frontal lobe contusion affecting Broca's area.
D. Inability to hear high-pitched sounds relates to issues with the auditory pathways or structures involved in hearing, such as the temporal lobe or the auditory cortex, not the frontal lobe. The frontal lobe and Broca’s area do not directly control auditory perception.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The sternoclavicular joint is where the sternum (breastbone) meets the clavicle (collarbone). It plays a role in the movement of the shoulder girdle but does not involve the jaw. Issues with this joint would typically present as shoulder or chest discomfort rather than problems with the jaw.
B. The temporomandibular joint is the joint where the mandible (lower jaw) meets the temporal bone of the skull, just in front of the ear. It is crucial for jaw movement, including opening, closing, and chewing. If a client feels that their jaws are "stuck," it is likely related to a problem with the TMJ. Common issues include TMJ disorders, which can cause pain, limited movement, or a sensation of the jaw being stuck.
C. The subtalar joint is located in the ankle, between the talus and calcaneus bones. It is involved in the movement of the foot, particularly in inversion and eversion. This joint is unrelated to jaw function, so problems here would affect the foot rather than the jaw.
D. The radioulnar joints are located in the forearm and involve the radius and ulna bones. These joints are responsible for the rotation of the forearm, such as turning the palm up or down. They do not relate to jaw movement or problems, so issues with these joints would affect the forearm or wrist rather than the jaw.
Correct Answer is B
Explanation
A. The glossopharyngeal nerve is involved in several functions, including taste sensation on the posterior third of the tongue, salivation, and the sensation of the pharynx. It also plays a role in swallowing and gag reflex. However, it is not responsible for the movement of the jaw or clenching of the jaw.
B. The trigeminal nerve is responsible for sensation in the face and also controls the muscles of mastication (chewing). It has both sensory and motor functions. The motor branches of the trigeminal nerve, specifically the mandibular division, innervate the muscles that allow for jaw movement, including clenching.
C. The vagus nerve has a broad range of functions, including regulating heart rate, digestive tract motility, and some aspects of speech and swallowing. It does not control jaw movement or clenching, so it is not relevant to this observation.
D. The facial nerve controls the muscles of facial expression, including movements like smiling, frowning, and closing the eyes. It is not involved in the motor control of the jaw or clenching actions.
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