A nurse is teaching a client about internal structures of the breast. The should understand that the internal breast consists what structures?
A blend of fibrous, glandular, and adipose tissues
Primarily milk ducts which function a milk reservoirs
Primarily muscle with small amounts of fibrous tissue
Glandular tissue to attach the breast to the chest wall
The Correct Answer is A
A) A blend of fibrous, glandular, and adipose tissues: The internal structure of the breast is composed of a mixture of fibrous, glandular, and adipose tissues. The glandular tissue is responsible for producing milk, the fibrous tissue provides structural support, and the adipose tissue stores fat. This combination of tissues gives the breast its shape and functional capabilities, making it a complex and dynamic organ.
B) Primarily milk ducts which function as milk reservoirs: While the breast does contain milk ducts that transport milk from the glandular tissue to the nipple, it is not primarily composed of these ducts. The milk ducts are an important component, but they do not make up the majority of the breast's internal structure. The blend of different tissues is what defines the breast’s anatomy.
C) Primarily muscle with small amounts of fibrous tissue: The breast itself does not contain significant muscle tissue. The primary muscles related to the breast are the pectoral muscles, which lie beneath the breast tissue but are not part of the internal breast structure. The internal breast primarily consists of fibrous, glandular, and adipose tissues, not muscle.
D) Glandular tissue to attach the breast to the chest wall: The glandular tissue is crucial for milk production, but it does not function to attach the breast to the chest wall. The attachment of the breast to the chest wall is facilitated by the Cooper's ligaments, which are fibrous bands that help maintain structural integrity. Glandular tissue primarily serves the function of milk production.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Fifth intercostal space, midaxillary line:
This is incorrect. The fifth intercostal space at the midaxillary line is a location that can be assessed for tactile fremitus, but it is not typically where fremitus is felt most intensely. Fremitus tends to be stronger near the midline structures, such as over the trachea, rather than at this lateral position, which is more peripheral.
B) Between the scapulae:
This is the correct answer. Tactile fremitus is usually most intense over the area between the scapulae and near the sternum. This is because the bronchi and trachea are located close to the chest wall in these regions, creating more intense vibrations that can be palpated during assessment. The fremitus is transmitted through the airways and is easiest to feel when the lung tissue is close to the chest wall, as in the area between the scapulae.
C) Third intercostal space, midaxillary line:
This is incorrect. The third intercostal space at the midaxillary line is not typically the site where tactile fremitus is most prominent. This area is more peripheral, and fremitus tends to be weaker here compared to regions closer to the sternum or between the scapulae where the lungs are nearer to the chest wall.
D) Over the lobes, posterior side:
This is incorrect. While tactile fremitus can be assessed over the posterior lobes of the lungs, it is not generally felt most intensely here. Fremitus is usually stronger near the midline of the chest (sternum) or between the scapulae, and tends to be weaker as you move laterally or toward the lower lobes of the lungs.
Correct Answer is B
Explanation
A) The eye focuses the image in the center of the pupil:
This option describes the accommodation reflex, not the pupillary light reflex. The accommodation reflex involves the focusing of the eye to bring an image to the center of the retina, but it does not relate to the constriction of the pupils in response to light. Therefore, it is not the correct answer for describing the pupillary light reflex.
B) Constriction of both pupils occurs in response to bright light:
This is the correct description of the pupillary light reflex. When light is shined into one eye, the normal response is for both pupils (direct and consensual response) to constrict. The pupillary light reflex tests the integrity of the optic nerve (cranial nerve II) and the oculomotor nerve (cranial nerve III), which control the constriction of the pupil in response to light. A normal pupillary light reflex is characterized by the constriction of both pupils when exposed to light.
C) The eye focuses the light on the sclera:
This statement is inaccurate. The sclera is the white part of the eye, and light is focused on the retina (specifically the fovea) for proper vision. This does not relate to the pupillary light reflex, which specifically refers to the constriction of the pupils in response to light.
D) Dilation of both pupils occurs in response to bright light:
This is incorrect. Dilation of the pupils occurs in low light conditions as part of the pupillary dilation reflex (also called the "dark reflex") to allow more light into the eye. However, in response to bright light, the pupils constrict, not dilate. The constriction of the pupils in bright light is the primary characteristic of a normal pupillary light reflex.
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