Central Nervous System Flashcards
Function
control center of the rest of the body, Composed of brain and spine. Regulates voluntary and involuntary functions of the body for us to breath, walk, and perform many other functions
Cephalo-,crani
head
cerebro- encephalo-
brain
neur-
nerve
optic- opt
eye
ot-, auri-
ear
Gray Matter
contains cell bodies, nuclei and dendrites, unmylinated axons
White matter
high concentrations of myelinated axons
Neurons
Nerve cells, conduct nerve impulses
Glial cells
supporting cells, provide nutrition, support, and make the myelin sheath around axons of neurons
Ventricles
Four internal chambers that are filled with cerebrospinal fluid
Meninges
Connective tissue membranes that surround the brain and spinal cord and lie between nervous tissue and bones
Cerebrum
Responsible for higher mental functions
Gyri
thick folds
sulci
grooves
Frontal
Voluntary motor control, reasoning, planning, emotions, social judgement
Parietal lobe
Perceives sensations from skin, muscles, tendons, joint receptors
Temporal lobe
auditory center to receive signals from the ears, important in memory
Occipital Lobe
Responsible for vision and eye coordination
Insula
Integrates sensory information from viscera, taste language function
Corpus Callosum
Connects the two halves of the cerebrum. Carries nerve impulses between two cerebral hemispheres
Thalamus
Relay center for all sensory information except smell.
Hypothalamus
Responsible for regulating many types of behavior such as thirst and hunger, temp, sleep. Produces ADH and oxytocin
Pituitary
Also called hypophysis