The skin cells with sensory role are

Correct Answer: B

Rationale: Tactile cells (Merkel cells) in the skin detect touch and pressure. 'Tactile cells,' is correct, linked to sensory nerve endings, per histology (e.g., Ross & Pawlina). 'Dendritic cells,' are immune-related. 'Keratinocytes,' form the skin barrier, not sensory. 'Melanocytes,' produce pigment. Tactile cells' mechanoreceptor role makes B the accurate answer.

Correct Answer: C

Rationale: The anterior pituitary secretes trophic hormones regulating growth and glands, but oxytocin comes from the posterior pituitary. 'Oxytocin,' is correct as the exception, per endocrinology references like Costanzo's Physiology. 'Growth hormone,' stimulates growth. 'Prolactin,' promotes lactation. 'Adrenocorticotrophic hormone,' targets adrenals. Oxytocin, stored and released by the posterior pituitary after hypothalamic synthesis, aids labor and lactation, making C the precise answer, distinct from anterior pituitary functions.

Correct Answer: D

Rationale: The suspensory ligament of the ovary (infundibulopelvic ligament) anchors it to the pelvic wall, carrying vessels. 'Suspensory ligament,' is correct, per anatomy texts like Moore, distinct from other supports. 'Broad ligament,' encloses tubes and ovaries, not a direct anchor. 'Ovarian ligament,' connects ovary to uterus. 'Round ligament,' supports the uterus. The suspensory ligament's pelvic attachment makes D the accurate answer.

Correct Answer: D

Rationale: The kidney excretes nitrogenous wastes from protein metabolism. 'Carbon dioxide,' is correct as the exception, expelled by lungs, per physiology (e.g., Guyton). 'Urea,' 'Uric acid,' and 'Creatinine,' are renal excretions from amino acid and muscle breakdown. CO2's respiratory elimination contrasts with the kidney's nitrogenous waste role, making D the accurate answer.

Correct Answer: D

Rationale: The respiratory system conducts air for gas exchange. 'Gall bladder,' is correct as the exception, a digestive organ, per anatomy (e.g., Moore). 'Pharynx,' channels air and food. 'Trachea,' is the windpipe. 'Bronchi,' branch into lungs. Gall bladder's irrelevance to respiration makes D the precise answer.