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 D
Explanation
A. Ureters are fibrotic tubes connecting the kidneys to the urinary bladder: Ureters are not fibrotic; they are muscular tubes that propel urine from the kidneys to the urinary bladder through peristaltic contractions. The walls of the ureters are composed of smooth muscle, not fibrous tissue.
B. Ureters are covered by an outer layer of epithelial tissue: The ureters are lined internally by a transitional epithelium, but their outermost layer is not epithelial tissue. Instead, the outer layer of the ureters consists of connective tissue, which provides structure and protection.
C. Ureters are connected inside the urinary bladder by a two-way valve: The ureters enter the urinary bladder at an oblique angle, which forms a functional one-way valve, preventing the backflow of urine from the bladder into the ureters. This valve is not a true anatomical valve but rather a flap-like mechanism.
D. Ureters are extraperitoneal tubular structures: The ureters are indeed extraperitoneal, meaning they are located outside the peritoneal cavity. This positioning provides protection and ensures that the ureters are less likely to be involved in peritoneal infections or injuries. This statement accurately describes the anatomical location of the ureters.
Correct Answer is A
Explanation
A. Larynx: The larynx, also known as the voice box, contains the vocal cords (or vocal folds. . It is responsible for producing sound when air passes over the vocal cords, causing them to vibrate. The larynx also plays a role in protecting the airway during swallowing.
B. Pharynx: The pharynx is a muscular tube that connects the nasal and oral cavities to the esophagus and larynx. It is involved in the passage of air and food but does not contain the vocal cords.
C. Epiglottis: The epiglottis is a cartilage flap that covers the trachea during swallowing to prevent food from entering the airway. It does not contain the vocal cords.
D. Trachea: The trachea is the windpipe that conducts air to and from the lungs. It does not contain the vocal cords; rather, it is located below the larynx where the vocal cords are housed.
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