Chapter 29 Bobby kiaer

Central Nervous System - controls most functions of the body and mind and consists of the brain and spinal chord

Central Nervous System

Peripheral Nervous System - it connects the CNS to the limbs and organs and communicates with the brain and spinal chord between the whole body

Peripheral Nervous System

Somatic Nervous System - works with skeletal muscle voluntary control of body movements and it contains nerves

Somatic Nervous System

Autonomic Nervous System - controls the bodily functions that are involuntary like breathing, heartbeat, and digestive processe. Consists of parasympathetic and sympathetic systems.

Autonomic Nervous System

Parasympathetic Nervous System - known as the rest and digest system, it conserves energy by slowing down heart rate, increasing intestinal and gland activity, and it relaxes the sphincter muscles in the gastrointestinal tract

The Parasympathetic Nervous System

Sympathetic Nervous System - stimulates the body's fight-or-flight response, and helps maintain homeostasis

Sympathetic Nervous System

Sensory Neuron - they are nerve cells in the nervous system that are responsible for converting external stimuli from the organism's environment into internal electrical impulses

Sensory Neurons

Interneuron - a neuron that transmits impulses between other neurons


Motor Neuron - a neuron whose cell body is located in the spinal cord and they can control effector organs, mainly muscles and glands

Motor Neuorn

Neuromuscular Junction - it is a chemical synapse formed by the contact between a motor neuron and a muscle fiber

Neuromuscular Junction

Acetylcholine - is an organic chemical that functions in the brain and body of many types of animals and humans, it is a chemical that is released by nerve cells so it could send signals to other cells


Norepinephrine and epinephrine - they are released by the adrenal medulla and nervous system and they serve as fight or flight hormones that are released when the body is under stress

Norepinephrine and epinephrine

Synapse - a place that is between two nerve cells, it transfers electrical activity from nerve to nerve


White Matter - consist of bundles of myelinated nerve cell projections that connect numerous gray matter areas to each other, they also carry nerve impulses between neurons

White Matter

Gray Matter - consists of neuronal cell bodies, neuropil, glial cells, capillaries, and synapses. They are a main part of the CNS

Gray Matter

Cerebral cortex - it is the outer layer of the cerebrum, it is made up of gray matter, and is important to consciousness

Cerebral cortex

Frontal Lobe - is located behind the forehead, it includes behavior, learning, personality, and voluntary movement

Frontal Lobe

Parietal Lobe - is located on the top of the brain, includes understanding sensory information and reception

Parietal Lobe

Occipital Lobe - it serves as the Lobe that visually processing things and is the rearmost lobe of the brain

Occipital Lobe

Temporal Lobe - it lies beneath the temples, includes things like understanding speech

Temporal Lobe

Limbic System - its is a complex system of nerves and networks in the brain, it involves instinct and mood and emotions, it is a set of brain structures

Limbic System

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