Today’s Checklist Content Activity Quiz Page 34: Defense Notes Page 35: Defense Video Guide OR Page 35: Defense Comic Strip Quiz Defense Quiz

PG 29 Response Excretory System Reproductive System Circulatory System Unit 10 – Body Systems Definitions Due Thursday (3/9/17) All Parts Due Wednesday (3/22/17) PG 29 Response Excretory System Reproductive System Circulatory System Respiratory System Integumentary System Digestive System Skeletal System Muscular System Lymphatic System Endocrine system Nervous System Immune System Epidermis

What should your binder look like? Numbered Pages Page 29 – Body Systems Vocabulary Page 30 – Homeostasis Lab Page 31 – Homeostasis Notes Page 32 – Body Systems Checklist Page 33 – Nutrient Absorption Article Page 34 – Defense Notes Quizzes Evolution Vocabulary Quiz Cladogram Mini-Quiz Most Missed Quiz – Evolution Taxonomy Quiz Six Kingdom Monster Quiz Kingdom Chart Quiz Most Missed Quiz – Taxonomy Virus Quiz Plant Systems Quiz

Notes On Page 34– You will take notes over the following PowerPoint. The phrases in red need to be copied down. And write down any excess information you feel is important.

How do animal systems interact to defend the body? Standard PG 34 Essential Question   How do animal systems interact to defend the body? Standard B.10A - describe the interactions that occur among systems that perform the functions of regulation, nutrient absorption, reproduction, and defense from injury or illness in animals

SYSTEMS INVOLVED ILLNESS Circulatory Integumentary Immune (1st line of defense) Immune (2nd line of defense) Circulatory

INTEGUMENTARY SYSTEM Main Parts: Skin Hair Nails Sweat and Oil glands

INTEGUMENTARY SYSTEM Main Functions: Holds in water Keeps out foreign objects Helps control body temperature

The Integumentary system acts as a wall or barrier to any outside threats!

Occasionally threats make it past the wall…

Functions of the Integumentary System (skin) Protection First line of defense against Bacteria Viruses Protects underlying structures from Ultraviolet (UV) radiation Dehydration Body temperature regulation If too hot Dermal blood vessels dilate Vessels carry more blood to surface so heat can escape If too cold Dermal blood vessels constrict Prevents heat from escaping

Functions of the Integumentary System (cont.) Vitamin D production Needed for calcium absorption Sensation Sensory receptors (nerves) Excretion Small amounts of waste products are lost through perspiration (sweat)

IMMUNE SYSTEM Main Parts: Antibodies (protective proteins) T-cells (White Blood Cells) B-cells (White Blood Cells)

IMMUNE SYSTEM Main Functions: B-cells produce antibodies that attack pathogens (foreign invaders) in the blood T-cells attack invaded body cells Each B-cell, T-cell, and antibody is specific to what it attacks

B-Cells, Antibodies and T-cells are the soldiers that fight infections if they get past the wall…

Vaccinations Immune system exposed to harmless version of pathogen stimulates B cell system to produce antibodies to pathogen “active immunity” rapid response on future exposure creates immunity without getting disease! Most successful against viruses

Immune System Malfunctions Auto-immune diseases immune system attacks own molecules & cells lupus rheumatoid arthritis diabetes multiple sclerosis Allergies over-reaction to environmental antigens allergens = proteins on pollen, dust mites, in animal saliva stimulates release of histamine

CIRCULATORY SYSTEM RECAP Main Parts: Blood vessels Heart Red & White blood cells (includes B- and T-cells)

CIRCULATORY SYSTEM Main Functions: Transports antibodies & white blood cells Transports toxins and waste products to be removed

ALLERGIC REACTIONS are your body overreacting to harmless substances.

DEBRIEF: Quickwrite in Bellwork Journal: Explain how all three systems (Integumentary, Immune, and Circulatory) work together for defense in the body.