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Animal Physiology: Endocrinology Practical

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Animal Physiology: Endocrinology Practical

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Questions and Answers

What is the function of hormones in the body?

Hormones are involved in maintaining homeostasis.

What are ductless glands?

Ductless glands are organs that produce secretions.

How do hormones travel throughout the body?

Hormones are transported by the vascular system, i.e., the blood.

Why do hormones only affect specific target organs?

Hormones only affect specific target organs because these organs have receptors that specifically bind to each particular hormone. Signup and view all the answers

Provide an example of a hormone that acts on specific target organs.

Follicle stimulating hormone (FSH) acts only on the follicle cells of the ovaries. Signup and view all the answers

What is the main difference between endocrine and exocrine glands?

Endocrine glands release hormones directly into the blood stream, while exocrine glands discharge their secretions through ducts to various parts of the body or to the outside of the body. Signup and view all the answers

Give an example of a mixed gland and state its actions.

The pancreas is a mixed gland with both endocrine and exocrine actions. It produces and releases insulin into the body as well as other enzymes or substances. Signup and view all the answers

How is the endocrine system regulated?

The endocrine system is regulated by feedback, where a signal is sent from the hypothalamus to the pituitary gland in the form of a 'releasing hormone,' which stimulates the pituitary to secrete a 'stimulating hormone' into the circulation. Signup and view all the answers

What does the anterior pituitary (adenohypophysis) secrete, and what is its function?

The anterior pituitary secretes a group of hormones known as the tropic hormones, which control other glands or act on other tissues. Signup and view all the answers

Where is the pituitary gland located, and what are the two lobes called?

The pituitary gland is located at the base of the brain and has an anterior lobe (adenohypophysis) and a posterior lobe (neurohypophysis). Signup and view all the answers