Sensory neuron
detect changes inside and outside the body
motor neuron
send impulses from the brain and spinal cord to other systems
thymus gland
regulates the immune system which helps your body fight disease.
adrenal gland
helps the body respond to danger
parathyroid gland
regulate calcium levels in the blood
thyroid gland
increases the rate at which you use energy
pituitary gland
secretes hormones that affect other glands and organs
pancreas
regulates blood sugar
testes
needed for male reproduction
ovaries
needed for female reproduction