Which of the following is involved in mechanical digestion of food?

A. Uterus: The uterus is an internal reproductive organ (the womb) and does not include the labia.
B. Fallopian tube: Fallopian (uterine) tubes are internal conduits for the oocyte; they are not the labia.
C. Vulva:The vulva is the external female genitalia and includes the labia majora and labia minora .
D. Ovary: The ovaries are internal gonads that produce oocytes and hormones; they are not the labia.

A. Stimulating thirst sensation: Incorrect (secondary/indirect).Thirst is primarily driven by hypothalamic osmoreceptors and angiotensin II; ADH primarily acts on kidneys to conserve water (though osmoregulation pathways are linked).
B. Increasing blood pressure: Partially true but not primary.ADH can raise blood pressure indirectly by increasing blood volume via water retention, but its primary renal effect is on water reabsorption.
C. Increasing water reabsorption:ADH (vasopressin) increases water permeability of the late distal tubule and collecting duct by inserting aquaporin channels, concentrating urine and conserving body water.
D. Promoting sodium reabsorption: Sodium reabsorption is primarily stimulated by aldosterone; ADH’s main action is water reabsorption (though water retention can secondarily affect sodium concentration).