Circulatory
Excretory
Respiratory
Endocrine
Nervous
100

the grasshopper has (open or closed) circulatory system

open

100

This organ filters out urea for us

kidneys

100

connects trachea to bronchiole tubes

bronchi

100

known as the master gland

pituitary

100

largest part of the human brain used for thinking and memory

cerebrum

200

this chamber sends the blood to the lungs

right ventricle

200

This organ produces urea for us

Liver

200

material that keeps open the windpipe

cartilage

200

this hormone regulates your metabolism

thyroxine

200

functional unit of the nervous system

neurons

300

circulatory path from heart to lungs

pulmonary

300

tubes from the kidneys to the bladder

ureters

300

proper name for air sacs

alveoli

300

raises blood sugar

glucagon

300

part of the brain that controls involuntary activity

medulla oblongata

400

helps red blood cells carry oxygen

hemoglobin

400

tight ball of capillaries in the nephron

glomerulus

400

membrane around the lungs

pleura

400

this gland regulates calcium and phosphate levels

Parathyroid

400

space in between neurons

synapse

500

a disorder having too many white blood cells

leukemia

500

Humans have nephrons to filter out urea.  Earthworms have _______

nephridia

500

disease characterized by air sacs breaking open or losing elasticity

emphysema

500

the technical term for adrenaline

epinephrine

500

insulating material around the axon

myelin sheath