Lecture 13 Nervous System Flashcards
4 Functions of The Nervous System
Communicating
Coordinating
Controlling
Regulating
Define homeostasis
To keep body temperature regulated based on environmental conditions
Purpose of sensory
Gathers info based on the 5 senses
Define Integrative
To interpret info, create sensation, add memory and make decisions
Purpose of motor in nervous system
Sends signals to muscles or glands to create a response
Parts of the nervous system
Central Nervous System
Peripheral Nervous System
What are neurons?
Cells that make up the brain, spinal cord, and nerves
Define dendrites
Fibers that receive messages from neurons
Define Axons
Fibers that send messages to neurons
What’s the action potential?
Electrical Signal
What’s a Synapse?
Gap between neurons
What are neurotransmitters?
Special chemicals that send messages across synapses
Thought
Language
Senses
Memory
Movement
Cerebrum
What is Gyri?
Ridges winding around the brain
What’s Sulci?
Grooves dividing the gyri
What are fissures?
Deep grooves dividing regions of the brain
Balance
Posture
Muscle coordination
Cerebellum
Breathing
Swallowing
Heartbeat
Blood Pressure
Brain Stem
Purpose of spinal cord
Transmitting impulses between brain and body
Function of PNS
Connects central nervous system to limbs and organs
Communication relay between brain and extremities
Types of nerves
Sensory nerves
Motor nerves
