Chapter 1- Intro to the Human Body Flashcards
conformational homeostasis
varies based on the environment, cold blooded organisms
true or false: organ systems work alone to maintain homeostasis
false: they work together to maintain homeostasis (ex… the digestive system takes food and breaks it down into nutrients, circulatory system transports nutrients throughout the body.
regulatory homeostasis
constant; warm blooded organisms
homeostatic mechanisms rebalance
stimulus, receptor, input, control center, output, effector, response
negative feedback
opposite of deviation
example of negative feedback
glucose regulation
blood pressure
positive feedback
same direction as deviation
example of positive feedback
platelet and wound healing
contractions during labor
order of levels of organization (small - large)
chemical, cellular, tissue, organ, organ system, organism
what is the difference between anatomy and physiology
anatomy: structure
physiology: function
11 organ systems
urinary system
reproductive system
digestive system
respiratory system
lymphatic system
endocrine system
circulatory/cardiovascular system
nervous system
muscular system
skeletal system
integumentary system
what is an anatomical position
feet shoulder width apart, palms up. arms at side
what are the 2 major divisions of the body
axial and appendicular
what is included in the axial divisions
head, neck, and trunk
what is included in appendicular divisions
arms and legs
superior
above
inferior
below
ventral/anterior
front
dorsal/posterior
back
medial
towards midline