the part near the source or beginning called.. Proximal

the part near the source or beginning called:

• a- Distal
• b- Proximal
• c- Anterior
• d- Posterior
• e- Inferior

The part near the source or beginning is called: b. Proximal

Here's a breakdown of the options and why "proximal" is the correct answer:

- Proximal:

This refers to the part that is closer to the point of origin or attachment. In most cases, it's the part that's closer to the center of the body or the trunk.

- Distal:

This is the opposite of proximal and refers to the part that is further away from the point of origin or attachment. It's typically the part that's further away from the center of the body or the trunk. 

- Anterior:

This refers to the front or ventral side of the body or a structure. It's the opposite of posterior.

- Posterior:

This refers to the back or dorsal side of the body or a structure. It's the opposite of anterior.

- Inferior:

This refers to the lower or bottom part of the body or a structure. It's the opposite of superior.

Therefore, "proximal" is the most accurate term to describe the part near the source or beginning, as it emphasizes the relative position based on the point of origin.

Here are some examples of how "proximal" is used:

• The proximal end of the humerus (upper arm bone) is the part that connects to the shoulder joint.
• The proximal portion of the small intestine is the duodenum, which is closest to the stomach.
• The proximal tubules of the kidneys are the parts closest to the glomeruli, where filtration occurs.