Which of the following glands produces oil that lubricates hair follicles?
Eccrine
Ceruminous.
Sebaceous
Apocrine
The Correct Answer is C
A. Eccrine:
Eccrine glands are sweat glands that are widely distributed across the body and primarily function in regulating body temperature through sweat production. They do not produce oil for hair follicle lubrication.
B. Ceruminous:
Ceruminous glands are specialized sweat glands located in the external ear canal. They produce earwax (cerumen. rather than oil for lubricating hair follicles.
C. Sebaceous:
Sebaceous glands produce an oily substance called sebum, which lubricates and moisturizes hair follicles and the skin. This oil helps prevent hair and skin from becoming too dry.
D. Apocrine:
Apocrine glands are sweat glands found mainly in the axillary and groin regions. They secrete a thicker sweat that is associated with body odor and does not produce oil for hair follicle lubrication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Left phrenic artery: The left phrenic artery is not a direct branch of the ascending aorta. Instead, it typically arises from the abdominal aorta or a branch of the thoracic aorta and supplies the diaphragm.
B. Left coronary artery: The left coronary artery emerges from the ascending aorta. It supplies blood to the left side of the heart, including the left atrium, left ventricle, and parts of the interventricular septum.
C. Left subclavian artery: The left subclavian artery originates from the arch of the aorta, not from the ascending aorta. It supplies blood to the left arm and parts of the thorax and neck.
D. Left intercostal artery: The left intercostal arteries typically arise from the thoracic aorta, not the ascending aorta. They supply blood to the intercostal muscles and the chest wall.
Correct Answer is D
Explanation
A. III, V, and VI: While cranial nerves III (Oculomotor. and VI (Abducens. are involved in extraocular muscle movement, cranial nerve V (Trigeminal. is primarily responsible for facial sensation and mastication, not eye movement.
B. III, VII, and VIII: Cranial nerve III (Oculomotor. is involved in eye movement, but cranial nerve VII (Facial. controls facial expressions and cranial nerve VIII (Vestibulocochlear. is involved in hearing and balance, neither of which are related to extraocular muscle movement.
C. III, IV, and VII: Cranial nerves III (Oculomotor. and IV (Trochlear. are indeed involved in eye movement, but cranial nerve VII (Facial. is not. It is responsible for facial expressions and taste sensation on the anterior two-thirds of the tongue.
D. III, IV, and VI: This is the correct combination. Cranial nerve III (Oculomotor. controls most of the eye's movements, cranial nerve IV (Trochlear. controls the superior oblique muscle, and cranial nerve VI (Abducens. controls the lateral rectus muscle. All three are directly involved in the movement of the extraocular muscles.
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