Bio Test-Intro and Nervous System

Cell

1st level of living things

Tissue – group of similar cells that perform a particular function

Organ

group of tissues that work together

Organ System

group of organs that work together to perform a function

Organism

group of organ systems that work together to perform all vital functions of the body

Homeostasis

the self-regulating process by which a living organism maintains a stable, relatively constant internal environment despite changes in external conditions

function of nervous system

Maintains Homeostasis, Master control and communication system, Higher mental functions ( problem solving etc) and emotional response

what is Sensory input

takes in information from environment

what is Integration

decides what to do with info

what is Motor output

causes response

Function of Brain

Processes information, controls thoughts, emotions, memory, movement, and all voluntary/involuntary actions.

function of Spinal cord, 

Carries messages between the brain and the rest of the body; coordinates reflexes.

function of sensory Neurons ( nerve cells)

Carry information from sense organs → brain/spinal cord, Allow you to feel, see, hear, taste, and smell.

function of motor neurons

Carry signals from brain/spinal cord → muscles and glands, enable movement

function of Sensory Hypothalamus

Regulates hunger, thirst, temperature, sleep, and controls the pituitary gland.