Sheep brain midsagittal view

There is a printable worksheet available for download here so you can take the quiz with pen and paper.

Created on April 20, Cerebrum Performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement. Corpus Callosum Connects the left and right hemisphere and ensures hemispheres can communicate with one another. Hypothalamus Plays a role in controlling behaviors such as hunger, thirst, sleep, and sexual response. Also regulates body temperature, blood pressure, emotions, and secretion of hormones. Performs many automatic functions like breathing, heart rate, body temperature, wake and sleep cycles, digestion, sneezing, coughing, vomiting, and swallowing. Cerebral Aqueduct Allows cerebrospinal fluid to flow between the third ventricle and fourth ventricle.

Sheep brain midsagittal view

The mid-sagittal cut is a straight forward dissection. Remove the pituitary gland. Turn the brain over. Align your knife or razor by placing it in the longitudinal fissure between the two hemispheres. Using smooth sawing motions, cut your brain in half. We begin our study of the mid-sagittal cut with the massa intermedia 25 , the point at which the two halves of the thalamus join across the midline. This joining is not seen in all mammals, or even within all individuals of a species. In humans for instance, only one third of the population has this joining. Dorsal to the massa intermedia is the fornix Above the fornix, in our picture, is one of the lateral ventricles 8. It happens to be the left lateral ventricle. There are a total of four ventricles in the brain.

The anatomical structures that you see in the sheep sheep brain midsagittal view are an extremely close approximation to those in your own brain. Movie Quotes. The regions are the same, the cranial nerves are the same, but fortunately for most of you, your brains are a bit larger and somewhat more complex than that of a sheep.

Roger N. Morrissette, PhD. Brain Dissection Lab. By the end of this laboratory you should be able to do the following:. Identify all regions of the dorsal surface of a sheep brain.

The sheep brain is remarkably similar to the human brain. One major difference, however, is in proportion. For example, the sheep brain has a proportionately smaller cerebrum. Another difference is in orientation of the spinal cord. The sheep spinal cord is orientated anterior to posterior, as in any four-legged animal. The human spinal cord is orientated superior to inferior. This orientation difference has a major affect on the location of the brain stem. The sheep brain stem is located more towards the rear posteriorly.

Sheep brain midsagittal view

The sheep brain anatomy consists of 3 major parts — prosencephalon forebrain , mesencephalon midbrain , and rhombencephalon hindbrain. These 3 main parts of the sheep brain again divide into specific segments. There are also 5 different lobes in the sheep brain structure — frontal, parietal, occipital, temporal, and limbic area. The different anatomical features of the dorsal, ventral, and lateral aspects of the sheep brain make it complex.

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It happens to be the left lateral ventricle. Identify all regions of the sheep brain following a midsagittal cut. Hypothalamus Plays a role in controlling behaviors such as hunger, thirst, sleep, and sexual response. Identify all regions on the ventral surface of a sheep brain. Raising our sights again, past the massa intermedia, we see dorsally 7 , the stria medullaris , a flat fibre tract that runs into 6 , the habenula. Identify all regions of the sheep brain from a midsagittal section. You can use it as midsagittal view sheep brain practice, completely free to play. The fourth ventricle is situated underneath the cerebellum 1. Nerves are bundles of axons that are either coming or going to a group of specific cells or nuclei. Thalamus Plays a role in pain sensation, attention, alertness and memory. Skull Bones Lateral View. Give a nod to the creator. Toggle navigation.

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Cell Mitosis EC. The first ventricle is the left lateral ventricle. Human Brain. The second ventricle is the right lateral ventricle. Physiological Psychology. In humans for instance, only one third of the population has this joining. Turn the brain over. Close menu PurposeGames PurposeGames. Below, going straight down ventrally you will see the optic chiasm 23 sliced right through. You can use it as midsagittal view sheep brain practice, completely free to play. Math Theorems and Constants EC. Fine print: Septum usually refers to a structure that divides something, else. Game Points.