Question

How are growth factors typically released in the body?

a. Through direct secretion into the bloodstream
b. Exclusively by endocrine glands
c. By diffusion from non-endocrine organs
d. Via nervous system signaling

What is a key characteristic of growth hormones regarding their release into the bloodstream?
a. Released exclusively by endocrine glands
b. Released through diffusion from non-endocrine organs
c. Released in response to nervous system signals
d. Released directly into the bloodstream

Apart from endocrine glands, where can growth factors be released from?
a. Only from the nervous system
b. Exclusively from exocrine glands
c. Non-endocrine organs
d. Only from the circulatory system

How do growth factors and growth hormones differ in terms of their mode of action?
a. Both act exclusively on distant target tissues
b. Growth factors act on nearby cells, while growth hormones act systemically
c. Growth hormones act on nearby cells, while growth factors act systemically
d. Both act exclusively on nearby cells

What is a characteristic feature of growth factors regarding their local effects?
a. They have a systemic impact on the entire body
b. They primarily affect distant organs and tissues
c. They exert localized effects on nearby cells
d. They are exclusively released by endocrine glands

In terms of specificity, how do growth factors and growth hormones differ?
a. Growth factors are more specific in their actions
b. Growth hormones are more specific in their actions
c. Both exhibit similar levels of specificity
d. Neither growth factors nor growth hormones are specific in their actions

Answer 1

Growth factors are typically released through diffusion from non-endocrine organs and have localized effects on nearby cells.

Step-by-step explanation:

Growth factors are typically released in the body through diffusion from non-endocrine organs. Unlike hormones, which are released by endocrine glands into the bloodstream, growth factors are released locally and act on nearby cells. Growth factors have localized effects on nearby cells and do not have a systemic impact on the entire body. While growth hormones act systemically, growth factors primarily affect nearby cells.