1. UNIVERSITY OF TEXAS ARLINGTON PRE-DENTAL SOCIETY GENERAL BODY MEETING September 12, 2014 DAT Question of the Day™ THE UNIVERSITY OF TEXAS ARLINGTON PRE-DENTAL SOCIETY GENERAL BODY MEETING SEPTEMBER 26, 2014 Which of the following structures is responsible for the release of calcium ions? A. Neuron B. Sarcomere C. Intercalated discs D. Sarcoplasmic Reticulum E. Endoplasmic Reticulum UTA Pre-Dental Society 2014-2015

2. Correct Answer: D. sacroplasmic reticulum Calcium ions are essential for muscle contraction to occur. Without the release of calcium, the myosin head would be unable to bind to the actin at the binding sites. It is the calcium that binds and removes troponin from the myosin binding sites on the actin. This is done when the axon terminal nearest a muscle fiber releases acetylcholine, a neurotransmitter, which then causes the sarcoplasmic reticulum to release calcium into the muscle cell to allow for muscle contraction. The endoplasmic reticulum is responsible for protein modification following translation on a ribosome. http://datquestionoftheday.com/category/biology/

3. Professor of Anatomy & Physiology and Introductory Biology at UTA. UTA Honors College Associate Dean Practiced dentistry for over a decade before coming to teach here at UTA in 1999. Received Doctorate in Dental Surgery degree from Baylor College of Dentistry in 1987. Ongoing member of various dental associations in Texas and also member of Student Health Professions Advisory Committee here at UTA.

5. Date: October 18 th (7am-3pm) Price: $130.00 Use various dental instruments. Use waxing instruments to wax teeth to proper form and function. Use a high speed handpiece to prepare cavity preparations. Restore cavity preparations with both amalgam and composite. Take impressions and make models from them. Have access to current dental students attending OU COD for a Q&A session. First come, first serve!

6. Sign-up today! - Both days vs. one day We will carpool in morning and come back afternoon of the next day. Hotel arrangements and dinner as group at Riverwalk. NEED VOLUNTEER DRIVERS Date: October 12-13 th Price:

7. Kaplan Pre-Dental Clinic - October 14 th (5:00-9:00pm) - Agenda and much more details next meeting Project Smile - October 10 th (3:00-5:00pm) Membership - Today is the deadline to apply for membership - T-shirts Next Meeting - October 10 th LS 100

8. Resources for you!