BELL WORK (Buff Binder): Copy the bolded words in the question below and write your entire answer: Which of the following systems interact to acquire oxygen and distribute it throughout the body? respiratory and digestive respiratory and circulatory digestive and integumentary integumentary and circulatory
Today’s Standard: describe the interactions that occur among [animal] systems that perform the functions of…defense from injury or illness… (B.10A)
Set up today’s page… Page: 71 Date: 3-17-15 Title: Defense Essential Question: How do animal systems interact to defend the body?
SYSTEMS INVOLVED ILLNESS Circulatory Integumentary Immune (1st line of defense) Immune (2nd line of defense) Circulatory
INTEGUMENTARY SYSTEM Main Parts: Skin Hair Nails
INTEGUMENTARY SYSTEM Main Functions: Holds in water Keeps out foreign objects Helps control body temperature
IMMUNE SYSTEM Main Parts: Antibodies (protective proteins) T-cells B-cells
IMMUNE SYSTEM Main Functions: B-cells produce antibodies that attack pathogens in the blood T-cells attack invaded body cells Each B-cell, T-cell, and antibody is specific to what it attacks
CIRCULATORY SYSTEM RECAP Main Parts: Blood vessels Heart 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 certain substances.
MID-LESSON DEBRIEF: Explain how the three systems work together to defend the body against illness. The integumentary system is the first line of defense, keeping out most invaders. The immune system kicks in when something gets past the integumentary system, and uses the circulatory system to move within the body.
SYSTEMS INVOLVED INJURY Nervous Endocrine Skeletal Muscular
NERVOUS & ENDOCRINE SYSTEMS Electrical & chemical responses Reflexes Hormones
SKELETAL SYSTEM Main Parts: Bones Joints Ligaments (bone to bone) Tendons (muscle to bone) Cartilage
SKELETAL SYSTEM Main Functions: Gives support & structure Protects internal organs Helps you move
MUSCULAR SYSTEM Main Parts: Main Function: Smooth muscle involuntary movement Cardiac (heart) muscle Skeletal muscle voluntary movement Main Function: Moves your body
DEBRIEF: Explain how the four systems work together to prevent injury if you touch a hot stove. The nervous & endocrine systems send signals to the skeletal & muscular systems to move the body away from injury.