Nervous System
Spinal cord and brain make up this nervous system
Central Nervous System
Nerve cells responsible for sending and receiving messages, which tells our body how to react
Neurons
What allows you to taste food?
Saliva
Accounts for 70% of the weight of the brain...specific to humans
cerebrum
For most people, the language function is found in this hemisphere. Also responsible for the "logic"
Left Hemisphere
This nervous system is responsible for transmitting messages between the central nervous system and all parts of the body
Peripheral Nervous system
Someone blinking to protect their eyes from damage or flinching as an instinctive reaction to fear is a
reflex
How are we able to see?
Light strikes the eyes→ neurons fire→
allows us to see
Responsible for balance and coordination
cerebellum
Responsible for creative thought and the location of the language function for some lefties
Right hemisphere
This part of the peripheral nervous system is responsible for regulating the body's vital functions like heartbeat, digestion, breathing, and blood pressure
autonomic nervous system
Once seeing a ball coming at your face, the time it takes for a message to travel from your eyes to your brain and then to your arm muscles to block the ball is called your
reaction time
Not being able to identify a common sound like a siren indicates there is damage to what lobe?
Temporal lobe
responsible for behavior and physiological functions (body temp, nutrient storage, motivation, emotion, hunger, thirst, sexual behavior, and aggression)
Hypothalamus
Responsible for vision
occipital lobe
Which nervous system is responsible for increasing the heart rate and blood pressure in someone who is getting nervous during public speaking thus causing their palms to become sweaty
sympathetic nervous system (stress)
What is a pupillary response?
Dark--> pupils get larger
Light--> pupils get smaller
*to protect pupils from being damaged*
Touching something allows us to determine what three main characteristics?
Texture, shape, and temperature
Makes it possible for humans to engage in complex thinking
cerebral cortex
Responsible for taste and the association areas in this lobe could be called the brains executive center
frontal lobe
Our body being able to feel the softness of cat's fur, the warmth of the cat sitting on our lap, and pain if the cat scratches us is the role of what nervous system
Somatic nervous system (voluntary muscles and sense organs)
What causes a knee-jerk reflex? (2 steps)
sensory neurons carry the message from the muscles to the spinal cord → excites motor neurons causing leg muscles to contract and forcing the leg to move
Which lobe is responsible for retrieving all of the "sensory information" and putting it into working memory
Frontal lobe
Most of the information coming from the sense organs goes through the _______ on the way to the higher levels of the brain
thalamus
Responsible for touch
Parietal lobe