Final answer:
The innervation and blood supply to the bladder begin with sympathetic contributions from the hypogastric nerve (T10-L2) and parasympathetic from the pelvic splanchnic nerves (S2-S4). The blood supply is mainly from the superior and inferior vesical arteries, branches of the internal iliac artery.
Step-by-step explanation:
The innervation and blood supply to the bladder originate from different sources. The sympathetic innervation comes from the hypogastric nerve and originates from the T10 to L2 spinal levels, while the parasympathetic innervation comes from the pelvic splanchnic nerves (S2-S4). Blood supply to the bladder comes from the internal iliac artery, specifically from the superior and inferior vesical arteries. Regarding the options provided for the question:
The most accurate answer would be C) L2 and L3 for the sympathetic innervation part of the question, as these levels indeed contribute to the innervation of the lower abdominal region including the bladder. However, in terms of parasympathetic innervation, the sacral spinal levels are primarily involved.