circulatory system
Transports gases, nutrients, waste products, hormones, and immune system cells throughout the body
respiratory system
Provides a site for gas exchange between the external environment and an organism's circulatory system
digestive system
Disassembles and absorbs food so the body can acquire the nutrients it needs to function
Immune and Lymphatic system
attacks pathogens that threaten the body and plays a supporting role in circulation by recycling fluid from the circulatory system
endocrine system
Regulates body activities by releasing hormones that travel through vessels in the circulatory system to reach target cells
(M) reproductive system
Produces sperm and delivers them to the female reproductive system, where fertilization may occur
(F) reproductive parts
Produces eggs and provides an environment that can nurture a developing embryo and fetus if fertilization occurs
nervous system
Acts as the control center of the body and interprets, stores, and transmits information, using electrical impulses and signals
Urinary/Excretory System
Purifies the blood by filtering out wastes and transports wastes out of the body
integumentary system
Provides protection by forming s barrier between the inside and outside of an organism and can aid in the secretion and transport of molecules
skeletal system
Supports and protects the body and internal organs, manufactures blood cells, and provides a surface for muscle attachment, creating a foundation for movement
Muscular system
Generates force through contraction which enables movement of the body and blood, food and other substances throughout the body
Homeostasis EX
Eat when hungry
Sweat when hot
Shiver when cold
Breathe slower when resting
etc
negative feedback
feedback in opposite phase with the input
positive feedback
feedback in phase with the input
Anatomy is
Physiology is
Structure
Function
Most abundant protein in body
coligen
Most abundant protein in blood
albumin
respiratory system fucntions
Transport Temperature regulation Protection
Blood Structure
55% Plasma
90% salty water
45% Packed Cells
95% red blood cells
Heart MurMur
When blood leaks through tricuspid and bicuspid
Respiratory/ Pulmonary System
Diffusion high to low
Hemoglobin
has 4 seats for o2
1 red blood cell has 1 million hemoglobin or 4million o2
Hemoglobin binds o2
in lungs high pressure
Hemoglobin releases o2
in active muscle low pressure
How cells communicate
Cytokines
How cells recognize each other
MHC or Major Histocompatibility Complex
B Cells
Humoral Immunity dont attack from bone marrow mature in bone marrow
T cells
Cell-meditated immunity attack from bone marrow mature in thymus
antigen
any substance that stimulates an immune response in the body
Antibodies
Proteins that recognize certain antigens, enhance the non-specific system's ability to recognize and destroy those antigens
Y shaped
produced by B cells
2 Types of T cells
Cytotoxic: Kill infected cells
Helper: Stimulate other cells to make B cells and antibodies and cytotoxic cells
HIV Phases
Acute
Chronic