The Endocrine System Hormones hormones Endocrine System The

The Endocrine System

Hormones, hormones Endocrine System The __________is made up of the _____ located in various parts of glands the body The chemicals they secrete are called hormones _____. These hormones are transported by the plasma _____ of the _____. blood The endocrine system: Helps coordinate life activities _____ Maintain homeostasis _____ respond to its the organism _____ environment Helps

Some words to live by Target Cell Or Organ Receptor Proteins Exocrine Endocrine specific cell or organ that • The _____ the hormone is affecting proteins • These are special _____ located either on or in the Target cell _____ • Combines with a specific hormone to produce a response _____ Ducts (tubes) • These glands have _____ (salivary glands) Without ducts (tubes) • Glands __________

Hormones and Receptors

Human Endocrine System

Human Endocrine Systems—the Players Pituitary Gland brain • Located at the base of the _____ Master gland • Sometimes called the _____ • It controls the activities of many other glands _____ of the endocrine system. growth • It produces _____ hormone thyroid • _____ stimulating hormone, follicle • _____ stimulating hormone. neck • Located in the _____ thyroxin which regulates Thyroid • Produces _____ Gland metabolism _____. thyroid gland • Embedded in the _____ Parathyroid parathormone • Produces _____ Gland calcium production. • Regulates _____

Human Endocrine Systems—the Players kidneys • Located on top of the _____ adrenaline which is produced in times of • Produces _____ Adrenal emergencies (fight or flight reaction). Glands adrenaline speeds up ________ Heart rate • _____ and Blood flow ________ stomach • Located on top of the _____ insulin • Produces _____ Pancreas lowers • _____ blood sugar levels and produces glucagon which raises blood sugar levels. _____ ovaries • _____ - in abdomen of females estrogen • Secretes _____ which influences the development of female progesterone Secondary sex characteristics and __________________ Gonads the pregnancy hormone. (sex testes scrotum of the male • _____ - in the _____ glands) testosterone which influence the development • Produces _____ Secondary sex characteristics of male _____________ and Sperm production __________.

Negative Feedback Mechanisms Endocrine system primarily The ________ Self-regulates ________ itself through the use of Negative feedback mechanisms _____________. It communicates _____ with other body systems in order to maintain homeostasis _____. glands hormones to their target cells _____ that secrete _____ response to the _____ stimuli rely on a _____ (or ‘feedback’) to know when enough of the hormone has reached its destination _____. Humans Negative feedback mechanisms almost _____ rely on _____________ without every day _____ even realizing it.

Feedback Mechanism – lets take a drive endocrine glands The chemical regulation by the _____ Feedback mechanism is accomplished by a __________. As the flow chart depicts, Jason is receiving feedback from his speedometer about the current speed of his car. Periodically, Jason will receive feedback on the effects the added gas given to his car has on his speed. As long as the car fails to achieve a speed of 55 MPH, Jason’s speedometer will tell him to add more pressure to his car’s gas pedal.

Feedback Mechanisms A B C D

Is there a Doctor in the House? thyroid goiter _____ - An enlargement of the _____ gland thyroxin caused by its inability to produce _____. diabetes - Caused by insufficient amounts of _____ insulin _____ produced by the pancreas. Glucose (sugar) levels in the results in higher ________ blood, and can lead to many secondary complications blindness __________, Circulation problems such as _____, and Healing problems __________ Giantism Growth hormone _____ - On over production of ________ by the pituitary gland Growth hormone Dwarfism _____ - Under production of ________ This by the pituitary gland

Just a quick thought… Which organelle(s) would have a function similar to the endocrine system Nucleus __________ Controls and regulates all life activities (functions) in the cell