The oil of our scalp is secreted by ______ glands associated with the hair follicles.
ceruminous
sebaceous
apocrine sweat
mammary
merocrine sweat
The Correct Answer is B
A. ceruminous: Ceruminous glands are modified sweat glands located in the ear canal that produce earwax (cerumen), not scalp oil.
B. sebaceous: Sebaceous glands are associated with hair follicles and secrete sebum, an oily substance that lubricates the hair and skin, helping to maintain moisture and provide a protective barrier.
C. apocrine sweat: Apocrine sweat glands are found in specific areas such as the axillae and groin. They secrete a thicker, milky sweat, usually in response to stress or hormonal signals, and do not produce scalp oil.
D. mammary: Mammary glands are specialized sweat glands that produce milk. They are not involved in producing scalp oil.
E. merocrine sweat: Merocrine (eccrine) sweat glands are widely distributed and secrete a watery sweat primarily for thermoregulation, not for lubricating hair or skin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. the subcutaneous layer, but no deeper:The subcutaneous layer lies beneath the dermis and contains fat and connective tissue. A cut reaching this layer would likely cause significant bleeding and deeper tissue pain, which does not match Anthony’s wound.
B. the papillary layer but not the reticular layer:The papillary layer is the upper portion of the dermis, just below the epidermis. Superficial cuts that are painful but not bleeding typically affect this layer, as it contains nerve endings that produce pain, but it is above the deeper reticular layer where larger blood vessels reside.
C. the stratum basale but not the dermal layers:The stratum basale is the deepest layer of the epidermis. While cuts affecting only this layer may cause mild discomfort, they rarely produce the type of superficial pain described, and they do not reach the dermis where more pain receptors are located.
D. the stratum corneum but not the stratum granulosum:The stratum corneum is the outermost layer of the epidermis and contains dead cells. A cut limited to this layer is usually painless and superficial, without causing noticeable pain.
Correct Answer is D
Explanation
A. basal cell carcinoma:Basal cell carcinoma is the most common type of skin cancer, typically arising from the basal cells in the epidermis. It grows slowly and rarely metastasizes, making it less deadly than other skin cancers.
B. squamous cell carcinoma:Squamous cell carcinoma originates from the keratinocytes of the epidermis. It is more aggressive than basal cell carcinoma but still has a relatively good prognosis with early treatment.
C. skin lymphoma:Skin lymphoma is a rare cancer affecting lymphocytes in the skin. While it can be serious, it is not the most deadly form of skin cancer compared to melanoma.
D. melanoma:Melanoma arises from melanocytes and is the least common type of skin cancer. It is highly aggressive and prone to metastasis, making it the most deadly form if not detected and treated early.
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