Tag: brain

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Brain-Parietal Lobe

The sheep brain shown below has the frontal and parietal lobe of the cerebrum pinned. The frontal lobe is responsible for cognitive functions such as learning and decision making. The parietal lobe is involved in how the brain processes and interprets sensory information. The cerebellum is pinned also, …

Brain Stem Unlabeled

The brain stem of the sheep is located on the ventral surface of the brain. Visible features include the olfactory lobe, optic chiasma, pituitary stalk (infundibulum), midbrain, pons, medulla oblongata and the spinal cord.   The image below shows the brain of the sheep with the dura mater removed.

Quiz: Brain – Sagittal View

1. Posterior Commissure 2.  Anterior Commissure 3.   Lamina of septum pelucidum 4.  Genu of corpus callosum 5.  Fornix 7.  Thalamus 8.  Choroid plexus 9.  Splenium of corpus callosum 10.  Great vein of cerebrum 11.  Pineal Body 12.  Quadrigeminal body  (superior and inferior colliculi) 13.  Cerebellum 14.  Medulla …

Arteries Within the Brain

In February of 2016, model Katie May died suddenly after a visit to a chiropractor.  The official cause of death was “vertebral artery dissection.”   During spinal manipulation, the artery which supplies blood to brain was damaged. The brain’s arteries circle the brain around the pituitary gland consisting …

Video of a Brain Dissection

This video shows the major parts of the brain, starting with the external anatomy where the pituitary gland, optic chiasma (nerves) , olfactory lobes, dura mater, and the parts of the brain stem:  midbrain, pons, medulla, and spinal cord.   The brain is the cut along the longitudinal …

Cerebellum and Arbor Vitae

The cerebellum is located at the posterior end of the brain and is associated with motor control, balance and coordination.  It is only loosely attached to the cerebrum, and dissections of the brain reveal that removing the dura mater often result in the accidental removal of the cerebellum. …

Superior Colliculus

The superior colliculus is part of the midbrain, also known as the tectum in non-mammalian vertebrates.  This area of the brain directs behavioral responses, particularly how the eyes respond to stimulus and the corresponding movement of the head and neck. If you are looking for this structure in …

Brain – Pituitary Gland

The pituitary gland, also called the hypophysis, is associated with the endocrine system.  It it located on the ventral side of the brain attached to the hypothalamus.   Under the direction of the brain, the pituitary gland controls the secretion of hormones that regulate growth, blood pressure, sexual …

Brain – Brain Stem

The brain stem is the posterior section of the brain that includes the pons and the medulla oblongata, which is continuous with the spinal cord.  The midbrain is usually included as part of the brain stem and includes the corpora quadrigemina (shown partially on the photo as the …

Brain – Corpus Callosum and Ventricles

This bisected brain shows the major features of the midbrain and brain stem.  The corpus callosum is just been the cortex of the brain and connects the left and right hemispheres.    The lateral ventricle is a fluid filled space found below the corpus callosum and just about …

Brain – Transverse Fissure

The cerebrum and cerebellum of the brain are divided by the transverse fissure.   The left and right hemispheres of the brain are divided by the longitudinal fissure. A fissure is a groove or a natural division, and with the brain are divide major regions. Sulci (singular: sulcus) are …

Brain – Pineal Gland

The pineal gland (also called pineal body) is located in the midbrain and is one of the few non-paired structures of the brain.     The pineal gland is part of the endocrine system and produces the hormone melatonin.  Melatonin is associated with sleep patterns and circadian rhythms. …

Label the Brain

  A = motor cortex | B = central sulcus | C = sensory cortex | D= parietal lobe | E = occipital lobe | AB = temporal lobe | AC = cerebellum |  AD = medulla oblongata |  AE = pons | BD = lateral fissure  | BE = …

Brain Labeling

  A = cerebrum (parietal lobe) B = gyri (convolutions) C = corpus callosum D = frontal lobe E = thalamus F = hypothalamus G = pituitary gland H = midbrain J = pons K= medulla L = cerebellum (showing arbor vitae) M = transverse fissure N = …

Brains with Dura Mater

These brains are shipped with the dura mater intact.   Students carefully remove the dura to expose the soft tissue of the cerebrum underneath.