Nervous,Endocrine,and pathogens

Homeostasis

keeping the body balanced and stable inside

Nervous system

sends and receives messages through the body, responds and reacts to stimulus using chemical and electrical signals

Central Nervous system

made up of the brain and spinal cord. processes information and executes a response by sending signals back out

Peripheral Nervous system

nerves throughout the body

Brain

processes information, controls thinking, movement, and body functions

spinal cord

“highway” that carries signals from the brain to the nerves and from nerves back to the brain

Nerves

buddles/clusters of neurons that carry messages. throughout the body

Neuron

nerve cells that sends messages all over your body

Cell body

the main part of a neuron

Axon

long part of neuron that conducts electrical impulses along the neuron cell

Synapse

the gap where one neuron passes a message to another

Dendrite

the branches on a neuron that get messages

Axon Terminal

the end of an axon that signals to other neuron cells

Recepter

gets signals and starts a response

Neurotransmitter

chemicals that carry messages across synapses

Endocrine system

a system of glands that send slow messages using hormones

Glands

organs that make and release hormones

Hormones

chemical messengers that affect the body

Pituitary Gland

“master gland” that controls other glands

Pancreas

makes insulin to control blood sugar

Thyoid

controls metabolism

Adrenal Gland

releases adrenaline for fight or flight

Pathogen

a bacteria, virus, or other microorganism that cause disease

Bacteria

tiny living things that reproduce quickly. some are helpful some cause disease

Virus

tiny germ that takes over cells to reproduce and make more virus

Fungus

can cause skin infections like athletes foot

Parasite

lives in or on a hosts and harms it