Nervous System Flashcards
What does the nervous system allow the body to do?
Receive, process, and respond to information from inside and outside of the body.
What is the role of the brain in the nervous system?
Controls the body and directs many organs.
What connects the brain to the nerves?
Spinal cord.
What types of sensations can nerves sense?
Hot, cold, pain, pressure, light, smell, taste, and sound.
How do nerves communicate information to the brain?
By sending sensory input.
What is the function of the brain in relation to muscles?
Sends messages to nerves in muscles to tell them how to move.
What are the components of the Central Nervous System?
Brain and spinal cord.
What does the Peripheral Nervous System consist of?
Nerves.
What is a reflex?
An automatic movement requiring no thought from the brain.
Which side of the brain controls the right side of the body?
The left side.
Do brain cells often regrow after injury?
No.
How many brain cells do human adults have approximately?
About 86 billion.
At what age do human brains fully develop?
25.
