Which vessel is the main supply of blood to the lower limb?

A. Seminal duct: There is no structure specifically called the "seminal duct" in male anatomy.

B. Epididymis: The epididymis is the tube where sperm mature, and it connects to the ductus deferens, not the urethra.

C. Prostatic duct: Prostatic ducts release prostatic fluid into the urethra, but they do not connect the ductus deferens to the urethra.

D. Ejaculatory duct: The ejaculatory duct connects the ductus deferens to the urethra, allowing sperm to enter the urethra for ejaculation.

A. Pancreas: pancreas secretes enzymes such as amylase (for carbohydrate digestion), lipase (for fat digestion), and proteases (such as trypsin and chymotrypsin for protein digestion). These enzymes are secreted into the small intestine to aid in the digestion of chyme.

B. Stomach: Chyme is a semi-fluid mixture of partially digested food and digestive juices formed in the stomach. The stomach’s muscular contractions mix food with gastric secretions, resulting in this thick paste that is then gradually released into the small intestine for further digestion.

C. Small Intestine: While the small intestine further processes chyme through digestion and absorption, it does not produce it.

D. Large Intestine: The large intestine primarily absorbs water and electrolytes from indigestible food matter and forms waste, but it does not produce chyme.