physiology:chem, biochem, feedback loops, homeostasis

physiology

function

human physiology

study of how chem and physics of the structures of the body and how they work to support functions of life.

homeostasis

steady internal conditions maintained by living things

atom

subatomic particle- proton, neutron, electron

molecules

chemical building blocks of all body structure. (two+ atoms create a molecule)

cell

smallest independently functioning unit of a living organism-have cellular structure

tissue

group of many similar cells which can be some related types-they work together to perform a specific function.

organ

anatomically distinct structure of the body composed of two+ tissue types

organ system

group of organs that work together to perform a major function or meet physiological needs of the body.

integumentary sytem

encloses internal body structures and is the site of many sensory receptors

skeletal system

supports the body and enables movement(along with the muscular system)

muscular system

helps maintain body temp and enables movement(along with the skeletal system)

nervous system

detects and processes sensory information and activates bodily response

endocrine system

secretes hormones and regulates bodily process

cardiovascular system

delivers oxygen and nutrients to issues and equalizes body temp

lymphatic system

returns fluid to blood and defends against pathogens

respiratory system

removes carbon dioxide from body and delivers oxygen to blood

digestive system

processes food for use by the body and removes waste from undigested food

urinary system

controls water balance in body and removes waste from blood and excretes them

male reproductive system

produces sex hormones and gametes and delivers gametes to female

female reproductive system

produces sex hormones and gametes and supports embryo/fetus as well as produces milk for infant.

organism

a living being that has cellular structure and can perform all necessary physiological needs independently

thermodynamics first law

energy cannot be created nor destroyed

anabolism

smaller simpler molecules combine into larger more complex substances

catabolism

larger more complex molecules are broken down into smaller, simpler molecules

metabolism

the sum of all anabolic and catabolic reactions to take place in the body

enzymes

needed for a reaction. speeds up reaction

activation energy

minimum energy required to start a chemical reaction

ATP

adenosine triphosphate.

about ATP

every cell uses atp