responds more quickly
What is the nervous system?
a specialized cell of the nervous system that carries impulses
What is a neuron?
part of the eye that contains photoreceptors
What is the retina?
CNS is comprised of these two organs
What is the brain and spinal cord?
What is a gland?
physically disconnected system
What is the endocrine system?
part of a neuron that receives a signal/impulse
What is a dendrite?
part of the ear that contains hair cells
What is the cochlea?
All the nerves in the body except for the brain and spinal cord make up this part of the nervous system
What is the PNS?
a chemical signal sent by an organ of the endocrine system
What is a hormone?
uses chemical and electrical signals
What is the nervous system?
"end" of a neuron where an impulse is carried by the axon
What is the terminal?
two types of photoreceptors found in the eye
What are rod cells/cone cells?
type of neuron that makes up the CNS
What are interneurons?
name three glands of the endocrine system
What are the hypothalamus, pituitary, thyroid, thymus, adrenal glands, pancreas, ovaries, testes?
uses the bloodstream to transport signals
What is the endocrine system?
the junction or gap between two neurons
What is a synapse?
hair cells are a type of this receptor
What are mechanoreceptors?
types of neurons that make up the PNS
What are sensory/motor neurons?
this gland releases hormones that tells all the other glands of the body to release their hormones.
What is the pituitary gland?
the structure that links both systems
What is the hypothalamus?
vesicles are released from the _____ and bind with _____ on a post-synaptic dendrite.
What are terminal/receptors?
three types of receptors found in the skin
What are mechanoreceptors, pain receptors, and thermoreceptors?
two divisions of the autonomic nervous system
What are the sympathetic/parasympathetic nervous systems?
_____ hormones enter target cells while _____ hormones bind to receptors outside of the cell.
What are steroid/nonsteroid hormones?