ENDOCRINE SYSTEM OVERVIEW (LECTURE) Flashcards
The two body systems responsible for sending and receiving sensory information and coordinating responses
Nervous system
Endocrine system
The Nervous system and Endocrine system is also known as
Neuroendocrine system
this regulates body activities by releasing hormones
endocrine system
These are chemical messengers into the bloodstream where they are carried throughout the entire body
Hormones
What are hormone functions?
Regulate chemical composition and the volume of the internal environment
Metabolism and energy balance
Contraction of the smooth and cardiac muscle and secretion by glands
Maintain homeostasis despite the disruption
Growth and development
Contribute to the basic processes of reproduction
Activities of the immune system
What are the two kinds of glands?
Exocrine glands
Endocrine glands
These gland secrete their products into the ducts which carry these products in the body cavities, the lumen of the organ
EXOCRINE GLANDS
The glands of the exocrine gland includes:
Sudoriferous glands
Sebaceous glands
Mucous glands
Digestive glands
These gland secrete their products (hormones) into the extracellular space around the secretory cells
Endocrine glands
The endocrine glands includes the:
Pituitary glands
Thyroid glands
Parathyroid glands
Adrenal glands
Pineal glands
Pancreatic islets
There are organs that have cells which secrete hormones but are not exclusively endocrine organs
Liver
Ovaries
Kidneys
Thyroid
Testes
Pancreas
Placenta
Heart
Hypothalamus
Skin
Small intestine
Stomach
There are organs that have cells which secrete hormones but are not exclusively endocrine organs
Liver
Ovaries
Kidneys
Thyroid
Testes
Pancreas
Placenta
Heart
Hypothalamus
Skin
Small intestine
Stomach
This is regulated by different metabolic activities as either positive or negative feedback mechanism
Hormones
(T/F) Each specific hormone is produced by a variety of endocrine gland
False (variety-specific)
It is the increase in product (hormone) that causes an increase in the activity of the systemn and hormone production rate
Positive feedback mechanism
It is the increase of product (hormone) that causes a decrease in the activity of the system and hormone production rate
Negative feedback mechanism
(T/F) Hormones have very powerful effect even when present in very low concentrations
True
These are specific cells being affected by a hormone
Target cells
These are proteins and glycoproteins where hormones bind to influence their target cells
Receptors
Also known as Hypophysis
Pituitary gland
The pituitary gland is also known as
Hypophysis
Attached to hypothalamus at the very base of the brain
Pituitary gland
Also known as the master endocrine system
Pituitary gland
Also known as the adenohypophysis
Anterior pituitary
It is the upgrowth of the glandular epithelium from the pharynx
Anterior pituitary
It is also known as the neurohypophysis
Posterior pituitary
It is the downgrowth of the nervous tissue from the brain
Posterior pituitary
This hormone control the uterine contraction during delivery and milk ejection during breastfeeding
Oxytocin
This hormone causes water retention and controls the body water balancing mechanism
Antidiuretic hormone