To discuss:
Anatomy of the pineal gland, its involution, hormone, and function.
Introduction:
Hormones are chemical messengers secreted by the endocrine glands or neurosecretory cells into the extracellular fluids. The secreted hormones reach the target cells through the bloodstream, and they stimulate response of other tissues or cells. Hormones bind only to specific cells based on their corresponding receptors present on cells. Hormones act through chemical signals. They regulate growth, development, blood pressure,
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- On the histological section of one of the endocrine glands visible rounded structures of various sizes, the wall of which is formed by a single layer of epithelial cells on the basement membrane, inside these structures contain a homogeneous noncellular mass. What is this gland? Pancreatic gland O back pituitary gland Thyroid gland Adrenal gland, cortical substance anterior part of the pituitary glandarrow_forwardInterior pituitary hormones undersecreation and oversecreation.arrow_forwardHow the negative feedback mechanism controls hormonal activity and yet allows hypo- and hypersecretion disorders to occur (for example, hypothyrodism and hyperthyrodism).arrow_forward
- Similarities, differences, and interactionsbetween the nervous and endocrine systemsarrow_forwardWhich hormones require second messengersto activate a target cell; how second messengers work, especially cAMP, DAG, and IP3arrow_forwardone hormone from the anterior pituitary and map out its regulatory cascade from pituitaryto any intermediate endocrine glands to target tissue and include any positive or negative feedbackloops.arrow_forward
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