In each testis of the human male reproductive system, there are about how many compartments called testicular lobules?

Introduction / Context:

The male reproductive organs include a pair of testes that produce sperm and hormones. Each testis is organised internally into compartments called testicular lobules, which contain seminiferous tubules where sperm cells develop. Knowing the approximate number of these lobules helps in understanding the structure and capacity of the testes. This question asks about the typical number of testicular lobules in each testis in human males.

Given Data / Assumptions:

• The organ in focus is a single testis in the human male.
• We are counting structural compartments known as testicular lobules.
• Options provide numeric values: 150, 200, 250, 300, and 100.
• We assume standard anatomy as described in human reproductive system chapters.

Concept / Approach:

Anatomy textbooks describe each human testis as being divided into around 250 testicular lobules. Each lobule contains one to three seminiferous tubules, which are the sites of spermatogenesis. The total number can vary slightly between individuals, but 250 is the commonly cited approximate value used for exam purposes. Other numbers like 150 or 300 are less typical and do not match the standard reference. Therefore, when asked about how many compartments called testicular lobules there are in each testis, the best answer is about 250.

Step-by-Step Solution:

Step 1: Recall from diagrams and descriptions that testes are not solid masses but are divided internally into lobules. Step 2: Remember that the number most often given for human testicular lobules is around 250 per testis. Step 3: Compare this figure with the options provided in the question. Step 4: Identify 250 as the option that matches the standard anatomical description. Step 5: Select 250 as the correct answer.

Verification / Alternative check:

Reproductive system sections in biology textbooks state that each testis is divided into about 250 compartments called testicular lobules. Diagrams illustrating testis structure label these lobules and show seminiferous tubules inside them. Question banks and exam guides that discuss spermatogenesis also repeat the same number. This consistent presentation across sources confirms that 250 is the appropriate approximate count.

Why Other Options Are Wrong:

Option A, 150, is lower than the commonly cited value and is not usually mentioned in standard references. Option B, 200, is closer but still not the typical textbook number. Option D, 300, and Option E, 100, deviate more strongly from the accepted approximate figure. While the exact number can vary between individuals, exam oriented materials consistently use about 250, so the other choices are considered incorrect in this context.

Common Pitfalls:

Students may remember that the number is in the hundreds but forget the exact value and guess one of the nearby options. Others might confuse the number of lobules with the number of seminiferous tubules or with sperm counts, which are much larger. To avoid confusion, learners should link the phrase about 250 lobules per testis with structural diagrams and remember that each lobule contains seminiferous tubules where sperms form.

Final Answer:

Each human testis has about 250 compartments called testicular lobules.