Body systems

3 types of gradients

chemical, pressure, temperature

diffusion

movement of molecules from an area of higher concentration to an area of lower concentration

nervous system primary functions

control other body systems, thought processes

nervous system primary component

neuron

nervous system responds to

acute/immediate challenges of the body

endocrine system primary function

-control of physiologic function and systems of the body

-wireless, slower control system

endocrine system primary components

endocrine glands/hormones

cardiovascular system primary functions

-transporting oxygen, nutrients, hormones, electrolytes, and drugs

-removing waste products

cardiovascular system primary components

heart, blood vessels, blood

respiratory system primary functions

moving oxygen in, CO2 out of the lungs

regulation of acid-base balance

respiratory system primary component

lung

muscular system primary functions

-provide movement and stabilize body positions

-organ contraction and relaxation

muscular system primary component

muscle fiber

types of muscle

skeletal, cardiac, smooth

skeletal system primary functions

-structural framework of the body

-protects underlying organs and tissues

-provides a lever system for movement

-serves as a storage area for minerals

-site of blood cell formation

skeletal system primary component

minerals and cells

integumentary system primary functions

-protects deep tissues from injury

-temperature control

-synthesizes vitamin D

integumentary system primary component

skin, hair, nails

digestive system primary functions

transfers nutrients and water from the food we consume into the body

digestive system primary components

gastrointestinal tract

urinary system primary functions

elimination of waste products

regulation of fluid volume, electrolyte composition, and body (blood) pH

urinary system primary component

kidney

hypertension can be influenced by

increasing the amount of fluid removed by the kidney

immune system primary function

regulating the susceptibility to, severity of, and recovery from infection, abnormal tissue growth, and illness

immune system primary components

physical, mechanical, chemical, blood, and cellular factors