Sheep brain midsagittal view

There is a printable worksheet available for download here so you can take the quiz with pen and paper. This is an online quiz called midsagittal view sheep brain. You can use it as midsagittal view sheep brain practice, completely free to play.

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.

Sheep brain midsagittal view

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. Identify all regions of the ventral surface of a sheep brain. Identify all regions of the sheep brain following a midsagittal cut. This laboratory involves a video dissection of a sheep brain and the comparison of that sheep brain to other animal brains. Please begin the lab by reviewing the lecture on Brain Evolution. Please print out these slides ahead of time and be prepared to take notes. The content of which will be on your next quiz or examination. Since this online laboratory involves dissection of animal tissue it is important to remember to be thankful, respectful, and subsequently take your studies seriously. The anatomical structures that you see in the sheep brain are an extremely close approximation to those in your own brain.

The septum is a solid aggregation of neurons that is considered part of the limbic system.

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.

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.

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. But, I will make it so simple for you that you may easily identify all the anatomical features of the sheep brain.

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Show More. Blog Lab. Plate 2 Structures: 1 cerebellum 16 hippocampus 2 primary fissure, cerebellum 17 mammillary body 3 superior colliculus 18 hypothalamus 4 inferior colliculus 19 anterior commissure 5 pineal gland 20 body of corpus callosum 6 habenula 21 genu of corpus callosum 7 stria medullaris 22 splenium of corpus callosum 8 lateral ventricle 23 optic chiasm 9 third ventricle 24 pons 10 cerebral aqueduct 25 massa intermedia - thalamus 11 fourth ventricle 26 cingulate gyrus 12 septum 13 septum pellucidum a bit of it 14 posterior commissure 15 fornix. Palomar College. These nerves can be very hard to find. Identify all regions on the ventral surface of a sheep brain. The underside of the brain is called the ventral side. We also see, below the cerebellum, the pons 24 , which is formed by massive fibre bundles on their way to the cerebellum from the brain. Printable Worksheet. Who Wrote it? Lego at the movies - Part I.

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Start rostrally and identify the two large olfactory bulbs and nerves - cranial nerve I detect smells , the optic nerve - II visual information and optic chiasm and optic tract, the oculomotor nerve — III eye movement, pupil constriction , the trochlear nerve — IV controls extra-ocular muscles , trigeminal — V face senses and movement, mastication , abducens — VI eye movement , facial — VII facial senses, salivation , vestibulocochlear — VIII balance and hearing , glossopharyngeal — IX taste , vagus — X visceral system regulator , accessory — XI neck and shoulder muscles , and hypoglossal nerve — XII tongue movement. This region has many folds or gyri gyrus — singular and grooves or sulci sulcus — singular. This separates the right and left hemisphere of the cerebral cortex integration of information, thought center. Use the figures below to identify the three regions of the brainstem: the Medulla, Pons REM sleep area, nerve pathway and Midbrain. There is a printable worksheet available for download here so you can take the quiz with pen and paper. Name the bones of the face and skull. Angola EC. The mid-sagittal cut is a straight forward dissection. Performs many automatic functions like breathing, heart rate, body temperature, wake and sleep cycles, digestion, sneezing, coughing, vomiting, and swallowing. Perfect Score. Passed the eye test? Fine print: Septum usually refers to a structure that divides something, else. Posterior to that you see 18 , which denotes part of the hypothalamus and a bit behind that, the mammillary body