Bio Test #3

Transports gases, nutrients, waste products, hormones, and immune system cells throughout the body

Provides a site for gas exchange between the external environment and an organism's circulatory system

Disassembles and absorbs food so the body can acquire the nutrients it needs to function

attacks pathogens that threaten the body and plays a supporting role in circulation by recycling fluid from the circulatory system

Regulates body activities by releasing hormones that travel through vessels in the circulatory system to reach target cells

Produces sperm and delivers them to the female reproductive system, where fertilization may occur

Produces eggs and provides an environment that can nurture a developing embryo and fetus if fertilization occurs

Acts as the control center of the body and interprets, stores, and transmits information, using electrical impulses and signals

Purifies the blood by filtering out wastes and transports wastes out of the body

Provides protection by forming s barrier between the inside and outside of an organism and can aid in the secretion and transport of molecules

Supports and protects the body and internal organs, manufactures blood cells, and provides a surface for muscle attachment, creating a foundation for movement

Generates force through contraction which enables movement of the body and blood, food and other substances throughout the body

• Eat when hungry

• Sweat when hot

• Shiver when cold

• Breathe slower when resting

• etc

feedback in opposite phase with the input

feedback in phase with the input

Structure

Function

coligen

albumin

Transport Temperature regulation Protection

55% Plasma

• 90% salty water

45% Packed Cells

• 95% red blood cells

When blood leaks through tricuspid and bicuspid

Diffusion high to low

has 4 seats for o2

1 red blood cell has 1 million hemoglobin or 4million o2

in lungs high pressure

in active muscle low pressure

Cytokines

MHC or Major Histocompatibility Complex

Humoral Immunity dont attack from bone marrow mature in bone marrow

Cell-meditated immunity attack from bone marrow mature in thymus

any substance that stimulates an immune response in the body

Proteins that recognize certain antigens, enhance the non-specific system's ability to recognize and destroy those antigens

Y shaped

produced by B cells

Cytotoxic: Kill infected cells

Helper: Stimulate other cells to make B cells and antibodies and cytotoxic cells

Acute

Chronic