PSYC 1101 Lecture Notes - Lecture 3: Ejaculation, Bronchus, Henry Molaison

• School: Northeastern University
• Department: Psychology
• Course: PSYC 1101
• Professor: Wormwood

Document Summary

Neuron - a single cell of the nervous system nerve - a bundle consisting of the axons of many neurons nervous system - network of neurons. Parasympathetic contracts pupil relaxes bronchi constricts bronchi accelerates heartbeat slows heartbeat relaxes bladder contracts bladder stimulates glucose release stimulates digestive activity stimulates secretion of epinephrine/norepinephrine stimulates gall bladder stimulates ejaculation in males allows blood flow to sex organs. Spinal reflexes - simple pathways in the nervous system that rapidly generate muscle contractions painful sensations travel directly to the spinal cord via sensory neurons, which issue and immediate command to the motor neurons to retract the hand. oldest part of the brain, evolutionarily important for orientation and movement consists of tectum - orients organism in environment, coordinating sensory inputs tegmentum. Forebrain highest level of the brain controls complex cognitive, emotional, sensory and motor functions divided into two main sections: cerebral cortex - more complex functions subcortical structures - basic instinctual drives.