CBNS 106! Discussion Sections

Introductions Kelli Lauderdale Kelli Lauderdale Office: LSP 2505 Office: LSP 2505 Office Hours: F 1pm-3pm Office Hours: F 1pm-3pm Website then click on CBNS 106 Website then click on CBNS 106http://ucrclass.pbworks.com

Belltower LSP 2505

Expectations Attend and be on time to each discussion section. Attend and be on time to each discussion section. Be respectful to your TA and to your fellow students. Be respectful to your TA and to your fellow students. No cell phones. No cell phones.

Keys to success Study soon after each lecture. Form small study groups. Ask questions! Come to lectures, office hours and discussion sections and take notes. Integrate book and lecture notes into your own words. Read the textbook!

Important Safety and Handling Notes Your sheep brain was preserved in formalin, an aqueous solution of the colorless, odorous formaldehyde gas. Before you begin working with your preserved sheep brain, please take care to heed the following safety precautions. However, please also keep in mind that there is no need for alarm: your specimen has been thoroughly washed such that when the precautions below are followed, your exposure level will be well below that which is safely permissible for humans.

Important Safety and Handling Notes 1) NO FOOD or DRINK inside the lab classroom. 2) WEAR GLOVES when handling your preserved specimen, tray, tools, soiled paper towels, etc. 3) REMOVE GLOVES when you are not working at the lab bench or handling your specimen. 4) CONTAIN YOUR SPECIMEN inside the dissection tray. 5) USE DESIGNATED GARBAGE CONTAINERS at the end of each lab bench for disposal of specimen litter, gloves, and soiled paper towels. 6) IN THE EVENT OF CONTACT: Don’t panic. Wash skin with soap and water; flush eyes with water. There is an eye-wash station at each sink. Also, please inform your TAs so that they may help you with safety procedures.

Important Safety and Handling Notes Clean-up procedure After the lab, please clean-up as follows: 1) Use a paper towel to scrape ALL specimen litter out of your dissection tray into designated garbage containers. 2) Thoroughly rinse your tray in the sink and stack upside down with the other clean trays. 3) Dispose of your gloves in designated garbage containers 4) Wash your hands with soap and water

Objectives The goals of this lab are to: 1) Familiarize yourself with basic anatomical terminology 2) Identify major structures of the mammalian brain and their function 3) Understand the anatomical relationships, i.e. pathways, among structures 4) Develop a 3-dimensional perspective of the brain and apply this to the interpretation of 2-dimensional anatomical images (e.g. various 2-D sections).

A. External view of the sheep brain 1.Orient yourself with the intact sheep brain using the following terminology Section 1: Anatomical Directional Terms Dorsal – Top view (Latin: dorsum = back) Think dorsal fin of a dolphin Ventral – View from the underside (Latin: venter = belly) Rostral – Toward the front, following the spinal cord (Latin: rostrum = beak) Caudal – Toward the back, toward the tail, following the spinal cord (Latin: cauda = tail) Anterior – In front of, front Posterior – After, behind, following, toward the rear Distal – Away from, farther from the origin Proximal – Near, closer to the origin Lateral – Toward the side, away from the mid-line Medial – Toward the mid-line, middle, away from the side Try to use these terms when pointing out structures to others.