Sheep Brain Dissection By: Ryan Begun and Nick Palladino and Mr. Davis

The Dura Mater The dura mater is a thick durable membrane covering the brain and closest to the skull. Surrounds and supports the large venous channels carrying blood from the brain toward the heart.

Pia Mater Thin white coating on the brain surface Contains blood vessels that supply blood to the brain.

The Cerebrum The largest part of the human brain. Associated with higher brain functions such as thought and action. Cerebrum is divided into five lobes. Frontal, Parietal, Occipital, Temporal, and insula.

The Cerebellum Also known as the “little brain” Associated with regulation and coordination of movement, posture, and balance. Involuntary Control

The Brain Stem Responsible for vital life functions such as breathing, heartbeat and blood pressure. The brain stem is made of the midbrain, pons, and medulla oblongata.

Medulla Oblongata Controls autonomic functions, such as heart rate, respiratory rate, coughing, vomiting etc. Relays nerve signals between the brain and spinal cord

The pons Involved in the motor control and sensory analysis.

Midbrain Relay station for auditory and visual information Eye movement

Frontal Lobe Involved in our motor functions. Problem solving Memory Language Judgment Impulse control Houses our personality

Temporal Lobe Associated with perception and recognition of the auditory stimuli, memory, and speech.

Occipital Lobe Associated with visual processing Helps interprets what the eyes see

Parietal Lobe Associated with movement Orientation Recognition Perception of the stimuli to the body Sense of Touch Primary Somatosensory Cortex

Gyri and Sulci Gyri is the bumps, elevated ridges in the cerebral cortex as shown by the circles. Sulci: the indentations, shallow grooves, as shown by the solid lines Gyrus Sulcus

Pre central gyrus Located in front of the central sulcus. First Gyrus in the frontal lobe. Voluntary movement of skeletal muscles

Post central gyrus In parietal lobe first gyrus behind the central sulcus. Receives sensory feed back from all over the body; including From joints And tendons Internal Organs

Central Sulcus Groove, separates frontal and parietal lobes.

Longitudinal Cerebral Fissure Separates the two sides of the cerebrum

Diencephalon Thalamus Hypothalamus

Thalamus Processes and relays movement and sensory information

Hypothalamus Controlling hunger and thirst Emotions Body Temperature regulation Circadian rhythms Other Homeostatic Controls. Read in your book about this little but important part of the brain.

Corpus Callosum Communication between the left and right hemispheres Forms roof of lateral and third ventricles Myelinated White Matter

White Matter Area where messages pass through Develops throughout life. Myelinated

Grey Matter Muscle Control Sensory Perception Seeing Hearing Memory Speech Emotions UNMYELINATED