Unit 4 (Brain) Flashcards
Central Nervous System (CNS)
Inside, Brain and Spinal Cord, Transmits info from brain to body and body to brain
Autonomic Nervous System (ANS)
Involuntary/Self-Regulating Functions (controls the body parts that moves involuntary like the eyes, heart, etc.)
Sympathetic Nervous System
Mobilizes/ Spends body’s resources, “Fight or Flight” (Reactions, controlling the energy necessary to cope with that situation)
Parasympathetic Nervous System
Conserves body’s resources, Protects bodily functions
Electroencephalography (EEG)
Monitors brain wave activity
Medulla
Vital Functions, such as Cardiovascular activities
Reticulated Formation or Reticular Activating System
Arousal and motivation transition, sleep transitions
Occipital Lobe
Sight (part of brain)
Lock and Key Analogy
Every transmitter has a lock, and every receptor has a key
Afferent Neurons/Sensory Nuerons
Info from PNS to CNS (responsible for bringing info from sensory receptors to CNS
Efferent Neurons/Motor Neurons
Info from CNS to PNS (Carry electrical neurons telling your muscles to move)
Left Hemisphere
Right half of the body, verbal and logical
Right Hemisphere
Left half of the body, creative and visual
Cerebral Cortex
“Grey Matter”, Memory attention, thought awareness(Thin Layer of Tissue) (Main information processing center)
Myelin Sheath
Surrounds Axon and Insulates Axon (Speeds info thru the neuron)
Endorphins
Endorphins help us deal with pain as well as producing a pleasurable sensation
Thalamus is not
a gland
Endocrine System is based on
Hormones
The Hypothalamus is linked to
Obesity
An increase in positive ions inside the neuron causes
an action potential
Sensory information from your sense of smell do not
pass through the thalamus on the way to the cortex