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Activity 2.1.2: Build a Brain Review The brain is the center of the nervous system in all vertebrates and can be very complex. Pull out your brain region.

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Presentation on theme: "Activity 2.1.2: Build a Brain Review The brain is the center of the nervous system in all vertebrates and can be very complex. Pull out your brain region."— Presentation transcript:

1 Activity 2.1.2: Build a Brain Review The brain is the center of the nervous system in all vertebrates and can be very complex. Pull out your brain region graphic organizer and check your work!

2 Cerebrum  Cerebrum is Latin for Brain  In humans, the cerebrum is the most superior region of the Central Nervous System and makes up the majority of what most people think of “the brain”. It is made up of 4 specific lobes: the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. Frontal Lobe:  Located at the front of each cerebral hemisphere, positioned anterior to the parietal lobes and above and anterior to the temporal lobes.  Responsible for higher mental functions such as using judgment, considering consequences, having acceptable social responses, and determining similarities.

3 Parietal Lobe:  Positioned superior to the occipital lobe and posterior to the frontal lobe.  Functions include integrating sensory information from various parts of the body, knowledge of numbers, and manipulation of objects. Occipital Lobe:  Positioned in the rearmost portion of the skull, smallest of the four lobes in the human cerebral cortex.  The most important functional aspect is that it contains the primary visual cortex. Temporal Lobe:  Positioned anterior the occipital lobes.  Functions include auditory processing, processing speech, and formation of the long-term memory (hippocampus). Cerebrum (cont.)

4 Cerebellum  2 nd Largest part of the brain  Located at the base of the skull, below the occipital lobe of the cerebrum and above the midbrain.  Primarily responsible for balance and coordination.  Plays an important role in sensory and motor functions of the muscles  The cerebellum uses constant feedback from the body and conducts changes or fine tunes motor movements.

5 Brain Stem  Brain Stem – Lower part of the brain that connects directly to the spinal cord.  Provides a passageway for sensory and motor nerves from the brain to the spinal cord and the rest of the body  Brain stem is made up of 3 parts  Midbrain – Also known as the Mesencephalon  Midbrain is the superior part of the brain stem  Controls visual and auditory systems as well as eye movements

6 Brain Stem (cont.)  Pons – Located in the brain stem between the midbrain and the medulla oblongata  The primary function of the pons is to relay sensory information between the cerebrum and the cerebellum.  Medulla Oblongata – Lowest section of the midbrain that connects directly to the spinal cord  Deals with autonomic functions such as breathing and blood pressure and it also helps control heart rate.

7 Spinal Cord  Spinal Cord – Long, thin, tubular bundle of nervous tissue that extends from the brain and continues down the dorsal aspect of the torso.  Extends from the midbrain down to somewhere between Thoracic 12 to Lumbar 3 in adulthood  Contains a number of nerve roots and bundles that forms what appears to be a horse’s tail often referred to as the Cauda Equina.

8 Blogspot [Internet]. Unknown publisher location [Date updated: NA; Date Accessed: 2009, June 17]. Avaliable at: National Geographic [Internet]. Washington DC [Date updated: 2009; Date Accessed: 2009, June 17]. Available at:


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