Cells – Chapter 3 Anatomy & Physiology

Cells – Chapter 3 Anatomy & Physiology Mr. Atkinson’s Class Union Grove High School 2014 / 2015

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor.

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor. • Tumors may be cancerous and often fatal or they may be harmless.

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor. • Tumors may be cancerous and often fatal or they may be harmless. • A cancerous neoplasm is called a malignant tumor or a malignancy

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor. • Tumors may be cancerous and often fatal or they may be harmless. • A cancerous neoplasm is called a malignant tumor or a malignancy • One property of most malignant tumors is their ability to undergo metastasis, the spread of cancerous cells.

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor. • Tumors may be cancerous and often fatal or they may be harmless. • A cancerous neoplasm is called a malignant tumor or a malignancy • One property of most malignant tumors is their ability to undergo metastasis, the spread of cancerous cells. • A benign tumor is a neoplasm that does not metastasize. An example is a wart.

Common Disorders: Cancer(Pg. 66) • When cells in a part of the body divide without control, the excess tissue that develops is called a tumor. • Tumors may be cancerous and often fatal or they may be harmless. • A cancerous neoplasm is called a malignant tumor or a malignancy • One property of most malignant tumors is their ability to undergo metastasis, the spread of cancerous cells. • A benign tumor is a neoplasm that does not metastasize. An example is a wart. Test Question: Which of the following cancerous growths would metastasize? A) benign B) Malignant c) Warts D) Tumors

Common Disorders: Cancer(Pg. 66) • Several factors may trigger a normal cell to lose control and become cancerous.

Common Disorders: Cancer(Pg. 66) • Several factors may trigger a normal cell to lose control and become cancerous. • One cause is environmental agents; substances in the air we breathe, the water we drink, and the food we eat.

Common Disorders: Cancer(Pg. 66) • Several factors may trigger a normal cell to lose control and become cancerous. • One cause is environmental agents; substances in the air we breathe, the water we drink, and the food we eat. • Intensive research efforts are now directed toward studying cancer-causing genes.

Common Disorders: Cancer(Pg. 66) • Several factors may trigger a normal cell to lose control and become cancerous. • One cause is environmental agents; substances in the air we breathe, the water we drink, and the food we eat. • Intensive research efforts are now directed toward studying cancer-causing genes. • Some viruses cause cancer by stimulating abnormal proliferation of cells.

Common Disorders: Cancer(Pg. 66) • Several factors may trigger a normal cell to lose control and become cancerous. • One cause is environmental agents; substances in the air we breathe, the water we drink, and the food we eat. • Intensive research efforts are now directed toward studying cancer-causing genes. • Some viruses cause cancer by stimulating abnormal proliferation of cells. Test Question: All of the following are causes of cancer except: A) genetic B) A Bacteria C) Environment D) Viruses

Common Disorders: Cancer(Pg. 66) • Chemotherapy involves administering drugs that cause the death of cancerous cells.

Common Disorders: Cancer(Pg. 66) • Chemotherapy involves administering drugs that cause the death of cancerous cells. • Radiation therapy breaks chromosomes, thus blocking cell division.

Common Disorders: Cancer(Pg. 66) • Chemotherapy involves administering drugs that cause the death of cancerous cells. • Radiation therapy breaks chromosomes, thus blocking cell division. • Because cancerous cells divide rapidly they are more vulnerable to the destructive effects of chemotherapy.

Common Disorders: Cancer(Pg. 66) • Chemotherapy involves administering drugs that cause the death of cancerous cells. • Radiation therapy breaks chromosomes, thus blocking cell division. • Because cancerous cells divide rapidly they are more vulnerable to the destructive effects of chemotherapy. • Unfortunately for the patients, Hair follicle cells, red bone marrow cells, and cells lining the gastrointestinal tract are also rapidly dividing.

Common Disorders: Cancer(Pg. 66) Test Question: Cancer patients often lose their hair, feel nauseas and are more prone to infections because: • Chromosomes are being destroyed rapidly through chemotherapy or radiation. • Chemotherapy also destroys rapidly dividing cells such as those in the hair, intestines and bone marrow. • Radiation breaks the chromosomes as they are trying to divide. • The chemotherapy drugs enhance growth rate of other cells in the body.

Look it up! • Cells placed in a hypertonic solution will__________ • Crenation will occur in a ____________ solution • Hemolysis will occur in a _________ solution • The process which allows molecules of any substance to move from an area of higher concentration to an area of lower concentration is __________ • In a hypertonic solution there would be a greater concentration of _________

Look it up! • Endocytosis is an example of ____________ • ____________ is necessary for diffusion to take place. • Red blood cells placed in a hypotonic solution will _________ __________. • Pinocytosis and phagocytosis are both functions of the ______________.

Cells – Chapter 3 Anatomy & Physiology