Chapter 3 Brain, Body, and Behavior

Cerebral Cortex
The outermost layer of the brain
-Controls high-level thinking mental process such as thought

What sides of the brain control what sides of the body?
Right side of brain –> left side of body
Left side of brain –> right side of body

What is the depression between the hemispheres called?
the fissure

What connects the two hemispheres?
the corpus callosum

Parietal Lobe
division of the cerebral cortex that contains the sensory strip

Temporal Lobe
division of the cerebral cortex responsible for hearing and some speech function

Occipital Lobe
division of the cerebral cortex that interprets visual information.

Sensory Strip
A band running down the side of the parental lobe that registers and provides all sensations.

Motor Strip
a band running down the side of the frontal lobe that functions body movement.

Prefrontal Area
part of the frontal lobe that enables us to re-experience personal past events

Frontal lobe
associates mental conditions, personality, and complex thoughts (heavy packed)
-division of the cerebral cortex that contains the motor strip, prefrontal area, and the frontal association area.

Corpus Callosum
a large bundle of nerve fibers that transfer info from one half of the cerebral cortex to the other.

Left Brain
speech, language, logic, writting

right brain
spatial reasoning, art, music, emotion.

What is the main difference between the cerebral cortex and the lower brain?
-the cerebral cortex is more complex thoughts
-the lower brain has easier functions such as breathing

Amygdala
-lower brain
-limbric system structure that is involved with emotion, especially aggression

Cerebellum
-lower brain
-coordinates and organizes bodily movements for balance and accuracy

Hippocampus
-lower brain
-limbric system structure involved in forming memories

Hypothalamus
-lower brain
-regulates basic needs (hunger and thirst) and emotions such as pleasure fear, rage and sexuality

Pituitary
-lower brain
-the master gland; it activates other glands and controls the growth of hormones

Reticular Activating System (RAS)
-the alertness control center of the brain that regulates the activity level of the brain; also called the reticular formation (sleep and alert)

Thalamus
-lower brain
-functions primarily as a central relay station for incoming and out going messages from the body to the brain and the brain to the body.

Neuron
a nerve cell; transmit electrical information.

Function of the Axon
part of the neuron that carries messages away from the cell to the dendrites on another neuron.

Function of a Dendrite
part of the neuron that recieves information from the axon of other neurons

Synapes
the junction point of two or more neurons; a conection ismade by a neurotransmitter

neurotransmitter
chemicals in the endings of neurons that send information across the synapes

Function and location of vesicles
bubble-like containers of neurotransmitters; located at the ends of neurons

What effect do acetylcholine, dopamine, and endorphines have on the body?
how you move the “control” of the move, and the pain or sensation of the move

What makes up the central nervous system?
the brain and the spinal cord

how does the spinal cord serve as a relay station?
functions as an autonomic “brain” in its own right and as a relay station for impulses to and from the higher brain.

What is the role of the spinal cord during a reflex?
the movement or”reflex” that is activated or traveled through the spinal cord (with out of higher brain)

Peripheral Nervous System (PNS)
all of the nerves outside the brain and spinal cord

Somatic Nervous System
a division of the peripheral nervous system containing sensory and motor nerves

Autonomic Nervous System
the autonomic nervous system ofthe body regulates breathing, heart rate, digestion, ect.

Sympathetic Nervous System
a division of the autonomic nervous system that energizes and prepares for emergencies

Parasympathetic Nervous System
a division of the autonomic nervous system that conserves bodily activity; works in opposite of the sympathetic nervous system (calms you down)

Hormones
chemical regulator that control bodily processes such as emotional responces, growth, and sexuality.

Where are hormones held before being release?
in a gland

Where are hormones released?
into the bloodstream.

Thyroid Gland
controls and regulates the speed of bodily process, called metabolism

adrenal gland
causes excitement in order to prepare the body for an emergency or for some important activity.

gonads
the sex gland; they make sperm or eggs for reproduction

androgen
male sex hormone

estrogen
female sex hormone

Phrenology
the study of bumps on the heads as they relate to personality and mental abilities.

Synaptic Gap Neurons do not touch each other, therefore this is how information is passed from one neuron to the next Myelin Sheath The speed at which a neural impulse travels is increased when the axon is encased by this …

The brain is the most complex, delicate and yet the most efficient among the organs of the human body. The intricate network of neurons in the brain is so complex that until now scientists have no way of predicting how …

cauda equina Collection of spinal nerves below the end of the spinal cord ventricles of the brain Canals in the interior of the brain containing cerebrospinal fluid WE WILL WRITE A CUSTOM ESSAY SAMPLE ON ANY TOPIC SPECIFICALLY FOR YOU …

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Acetylcholine neurotransmitter chemical releases at the ends of the nerve cells. Afferent nerve carries messages toward the brain and spinal cord (sensory nerves). Afferent comes from af-a form of ad-, meaning toward and-fernt meaning carrying WE WILL WRITE A CUSTOM …

acetylcholine neurotransmitter chemical released at the ends of nerve cells afferent nerve carries messages toward the brain and spinal cord (sensory nerve) (afferent comes from af- (a form of ad-, meaning toward) and -ferent (meaning carrying)) WE WILL WRITE A …

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