LH acts on following cells except
**Core Concept**
The **luteinizing hormone (LH)** plays a crucial role in the regulation of the reproductive system, acting on specific cells to stimulate steroid hormone production. LH is a key hormone in the **hypothalamic-pituitary-gonadal axis**. Its primary targets include the Leydig cells in males and the theca cells in females.
**Why the Correct Answer is Right**
LH acts on **Leydig cells** in the testes to stimulate the production of **testosterone**, and on **theca cells** in the ovaries to produce **androgens**, which are then converted to **estrogens**. However, the correct answer choice is not provided, but typically, LH does not act directly on **germ cells** or **Sertoli cells** in males, or on **granulosa cells** in females, as these cells are primarily influenced by **follicle-stimulating hormone (FSH)**.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option text, it's challenging to provide a detailed explanation.
**Option B:** Similarly, without the option details, a precise explanation cannot be given.
**Option C:** Assuming this option might relate to cells not directly influenced by LH, such as **Sertoli cells** or **granulosa cells**, these cells are more directly affected by **FSH**.
**Option D:** This option might pertain to cells that are indeed targets of LH, such as **Leydig cells** or **theca cells**, which are directly stimulated by LH.
**Clinical Pearl / High-Yield Fact**
Remember, LH primarily targets **Leydig cells** in males and **theca cells** in females, playing a crucial role in **steroidogenesis**. Understanding the specific cell types influenced by LH is vital for comprehending reproductive endocrinology.
**Correct Answer:** Correct Answer: D. Granulosa cells