Nervous System Flashcards
Purpose of the nervous system
Transmits signals between the brain and the rest of the body, including internal organs
(I don’t think we need to know but)
Plays a role is every aspect of our health and well being ie. waking up, breathing, thinking, reading, remembering, and feeling emotions
Types/parts of the system
Central nervous system CNS
Peripheral nervous system PNS
Parts of the CNS
Spinal cord
Brain
Spinal cord
A pathway for nerve impulses to and from the brain, but also a center for operating and coordinating reflex actions independent of the brain
Connects the brain to the PNS starts from the medulla oblong at a and stretches to the lumbar region of the spine it vertebral column
Brain
Most complex and important organ in the body
Found in head protected by skull
Three main parts of the brain
Cerebellum
Encephalic trunk
Brain cortex
Cerebellum
Controls movement balance and coordination
Encephalic trunk
Controls the bodies ability to breath air
Digest food
Circulate blood through body
Brain cortex
Largest and most recognizable
Neurons are housed
Left hemisphere of the brain
Controls right side of the body
Responsible for:
Speech, calculating, and reasoning
Right hemisphere of the brain
Controls the left side of the body
Responsible for:
Intuition, creativity
3 lobes
Frontal lobe
Parietal lobe
Temporal lobe
Frontal lobe
Plan our actions
Feel emotions
Parietal lobe
5 senses
Temporal lobe
Memory