Brain terms and lobes
What part of the brain accounts for 40% of the brain mass
Superior part of the brain
Type of synapse wehre electrical current flows directly between cells
Electrical synapse
How are neurons classified?
By number of processes, functional classification, location, or neurotransmitters used
What is the relay station to and from the cerebral cortex, and it receives sensory and motor inputs?
Thalamus
What does the brain stem consist of?
Midbrain, Pons, and Medulla
What are the 5 lobes
frontal, parietal, temporal, occipital, insula
This is the end of the axon where neurotransmitters are released
Persynaptic axon terminal
What is the flow of electrical charge between two points called?
This part of the nuclei receives incoming information, regulates hunger, and water balance among other things...
Hypothalamus
What are the programmed behaviors produced by the brain stem called?
Automatic behaviors
What does the lateral sulcus seperate
Frontal from temporal lobe
What is synaptotagmin?
it is a calcium sensing protein that binds to Ca++ and activates SNARE proteins
What is the resting membrane potential of a resting neuron
-70mV
What are mamillary bodies?
Paired bodies in the hypothalamus that act as an olfactory relay
What does the medulla oblongata merge with?
The spinal cord
Where is Wernickes area located?
Temporal lobe
What is the gap between the presynaptic and postsynaptic neurons called
Synaptic cleft
What is 25 more times permeable to the resting neuron membrane than sodium?
Potassium (K+)
What does the limbic system help with?
Helps with emotions and decision making.
What does the cardiovascular center do?
Adjusts blood vessel diameter and force/rate of heatr contractions
What lobe do these actions describe: Executive functions, planning, problem solving, motivation, judgement, decision-making, social behavior, impulse control, reward, attention, personality, memory, learning; Skeletal muscle movement, ocular (eye) movement, speech control, facial movement
Frontal lobe
Which circuit has multiple neurons sending information to one neuron
Converging circuit
A non-neuronal cell that provides support and protection to neurons is called?
Glial cell
What do osmoreceptors recognize and what do they do?
Osmolarity of the blood and they stimulate release of hormones and activate thirst
What does the middle cerebellar peduncle connect?
It connects the pons to the cerebellum