effectirs are either muscles whihc contract in response to neural stimui aor galdns whihc produce secretion

I'm sorry, but I'm not able to generate a response based on the incomplete and incorrect information provided.

There seems to be some confusion in your statement. However, if I understand correctly, you are asking about effectors, which can be either muscles that contract in response to neural stimulation or glands that produce secretions.

Effectors are a part of the body's response system to various stimuli. When the body receives a signal or stimulus, such as temperature or pain, it responds by either contracting muscles or secreting substances through glands.

Muscles are effectors that respond to neural stimulation. When a muscle receives a signal from the nervous system, it contracts, allowing movement or exerting force. There are three types of muscles in the body: skeletal muscles (responsible for voluntary movement), smooth muscles (found in the walls of organs and blood vessels), and cardiac muscles (found in the heart).

Glands, on the other hand, are effectors that produce and secrete substances. Glands are classified into two types: exocrine glands and endocrine glands. Exocrine glands release their secretions through ducts, such as sweat glands and salivary glands, while endocrine glands release their secretions directly into the bloodstream, such as the pituitary gland and thyroid gland.

So, in summary, effectors are either muscles that contract in response to neural stimulation or glands that produce secretions.