lab_1 - Physiological Psychology Lab Physiological Fall...

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Unformatted text preview: Physiological Psychology Lab Physiological Fall 2008 TAs: Mike Jarcho (mornings) Caroline Hostetler (afternoons) Lab Safety When When working with the brains, please make sure you put on sure Lab Coats Safety goggles Safety Properly sized gloves If If you have any questions about lab safety, ask me before you proceed. ask What You Need & Where to Get it Goggles Gloves Lab coats Dissection tools Tray Diaper Brains Everything must stay in the container (make sure there is enough carosafe) there Containers go under the hood Biohazardous waste Structure of the Class Brief powerpoint- covering terms and functions Brief covering Dissection- break into groups and identify terms Show me that everyone in your group can identify several Show terms terms Clean up- wash and put away tools, dispose of gloves, Clean store brains store In-class assignment- use the computers in lab to In-class compare what you saw from your sheep brain to information about the human brain information Lab 1: External Features of the Brain This This first lab will be dedicated to looking at the external features of the brain and to be aware of their function. aware we can do this, a note about directional terminology and cutting planes… directional Before Before Directional Terms Rostral (anterior) – head or front Caudal (posterior) – tail Dorsal (superior) – back or top Ventral (inferior) – belly or bottom Medial – towards midline of body Lateral – away for midline of body Ipsilateral – on the same side of the body Contralateral – on opposite sides of the body Cutting Planes coronal (cross sectional, frontal, transverse) – divides brain into front and back parts back – divides brain into upper and lower parts lower – bisects the brain into right and left halves left horizontal sagittal Neuroaxial Planes Coronal Coronal Horizontal Sagittal Sulci & Gyri Ventricles Major Subdivisions Orient Orient yourself quickly by recognizing and identifying these major subdivisions. major Cerebrum Cerebellum Brain Brain Stem Lobes of the Cerebral Cortex Brainstem Why do we use the comparative approach? Dissection Please Please read handout for all important information regarding dissection. information panic about dissecting the brains. None of us are brain surgeons (yet) None we begin to look at the brain, we must first remove all the supporting structures. structures. Don’t Don’t Before Before Protection: Central nervous system structures are protected by the skull, spine, meninges, cerebro-spinal fluid (CSF), and the blood brain barrier. Meninges- 3 layers 1. Dura – tough outer covering, Latin for “hard mother” 2. Arachnoid – net of blood vessels and CSF, spidery appearance 3. Pia – most delicate, flush with surface ...
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