Units A, B, C Flashcards
What are the two main nervous systems
The central and peripheral nervous systems
If you accidentally touch a hot stove is the reaction a response or a reflex
it is an involuntary reflex to keep us safe from being burnt
How is waste from the body extracted and disposed of in the excretory system
It is separated by the nephrons and then travels through the urinary tract in the urine
How does air enter the bloodstream
It enters the blood through tiny, branched out bronchi in the lungs
What is the organizational pattern of the units of life from smallest to largest
Cell - tissue - organ - organ system from smallest to largest
What cell gathers sunlight for a plant
Chlorophyll is the cell used in plants photosynthesis
Describe the process in how we feel things
the dendrites sense it and send it to the neurons which is sent to the axons that send it to the rest of the body to act upon the stimuli
What is the most common color of cells
Trick question the most common “color” is transparent
What is the purpose of cells
To make tissues or perform a special function
Where is blood produced
Red, white and platelets are all made In the bone marrow
What is the purpose of the skin
The largest sensory organ that sends stimuli from the environment to the brain
What systems makes the heart pump
The muscle, nervous, circulatory and the respiratory system are the key systems in the hearts function
What are the layers of the bone
The hard outer layer, the spongy, softer layer, and the bone marrow
What does a tendon do
Helps to move the bones
What does a ligament do
Connects the muscle to the bones
How do you calculate mechanical advantage
Output force over input force
Why did rube Goldberg start drawing his machines in his cartoons
It was a joke to show how the government did things the hard way all the time
How do you calculate the speed ratio
Opposite of mechanical advantage: input over output
