The amazing excretory system . The Excretory system. There are... -Kidneys - Ureters -Urethra -urinary bladder ...are Separated from the excretory system for urea, water, and other wastes . Filtration of wastes.
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The Excretory system • There are... • -Kidneys • -Ureters • -Urethra • -urinary bladder • ...are Separated from the excretory system for urea, water, and other wastes
Filtration of wastes • There are kidneys which are champion filter. • There are 2 kidneys in each body. • There are about a million of nephrons in ea-ch kidney which filters wastes from blood and produce urine.
Excretion and Homeostasis • Eliminating wastes such as urea, excess water, and carbon dioxide is important for maintaining homeostasis. • Excretion maintains homeostasis by keeping the body’s internal environment stable and free of harmful levels of chemicals
Hormones and the endocrine system • The endocrine system produces chemicals that control many of the body’s daily activities. • Regulates long term changes such as growth and development.
Function of Endocrine glands • The endocrine glands include the... • Hypothalamus • Pituitary • Thyroid • Parathyroid • Adrenal • Thymus • Pancreas • They also include the ovaries in females and testes in males.
Negative feedback • Through negative feedback, when the hormone reaches certain level in the blood, the endocrine system sends signals to stop the release of that Hormone.
Video~~~~~!!~~~~~~~!!~~~ • http://www.youtube.com/watch?v=TZMJeZL-BVg