Muscle System Test

Today in class we tested on the muscle system

Wednesday: Come prepared to assemble your lab posters and prepare for presentations

Friday: Lab group presentations

Muscle Fatigue Lab and Muscle System Review

Today in class we:
- Finished all data collection for muscle fatigue labs
- Reviewed the muscle system for test on Monday
- See Online Resources for additional review materials
- See Assignments for assigned review sheet - due Monday
- Study session Monday at lunch in Rm 411


Next week:
Monday: Muscle System Test
Wednesday: Muscle Fatigue group presentations

Muscle Stimulus and Action

Do Now:
Define a muscle twitch
Differentiate between slow and fast muscle twitch

Today in class we:
Reviewed ideas of twitch, summation, recruitment, and sustained contraction
Discussed how muscles act in groups in terms of insertion and origin and prime mover, synergists, and antagonist muscles

Homework:
-Muscle System Review due Monday at exam time - come prepared for review session on Thursday by identifying areas that you want to review
-Be prepared on Thursday to finish your data collection in class
- Muscle Fatigue Lab due in full on Wednesday 2/13, presentations

Muscle Fatigue Lab

Do Now:
Describe the difference between isometric and isotonic muscle contractions.

Today in class we:
discussed muscular responses: threshold stimulus, and summation (see power point on side bar)
conducted muscle fatigue labs in partner groups

Muscle Fatigue Lab Set Up

Today in class we reviewed the requirements for the muscle fatigue lab, set up our labs, and conducted experiments on group members.

For Friday:
Be ready to conduct your experiments on classmates and collect data

Muscle Fatigue Lab Design Prep

Today in class we:
Discussed the difference between isometric and isotonic muscle contraction

Worked on lab design in the computer lab

Homework due Wednesday
Read 8.4 pg 177 - 180: Check Your Recall pg 180
Read 8.7 pg 182 -184: Check Your Recall pg 184

Bring all materials needed for set up of your experiment on Wednesday, be prepared to set up your experiment and do preliminary tests.

Muscle Fatigue Lab Design Intro

Today in class we:
- Brainstormed in our lab groups about the following questions: 1) What is muscle fatigue? 2) WHat do muscles require to contract? 3) What factors influence the rate of muscle fatigue? 4) How can we measure these factors?

- Introduced Muscle Fatigue Design Lab

Physiology of a Muscle Contraction

Today in class we:
Discussed the following topics of muscle contractions (see powerpoint link to download lecture)
- Role of acetylcholine and Ca+ in muscle contractions
- Methods of muscle cells in obtaining energy
- Oxygen debt and muscle fatigue
Performed muscle fatigue introduction lab
- graphed personal, partner, and class average data

Homework:
Study of muscles in space reading and review due Wednesday

Muscle Quiz 1

Today in class we:
- Reviewed anatomy of skeletal muscles and muscle fibers
- Reviewed the structure and function of neuromuscular junctions
- Took Muscle quiz 1

Homework:
Due Tuesday 1/22: Reading and Review: NASA Research on Muscle Wasting in Space

Contraction of Skeletal Muscle Tissue

Do Now:
Draw a bisected muscle segment and include the following components:
Endomysium, Perimysium, Epimysium, Fasicles, Fibers, Tendon, Bone

Today in class we:
- Discussed the anatomy of a muscle fiber
- Discussed the roles of myosin and actin in muscle contraction
- Discussed the connection between muscles and nerves
- Discussed the sliding filament model of muscle contraction

Homework:
Read pgs 172 - 175
Complete CYR exercises on bottom of pg 172 and top of 175

STUDY FOR QUIZ ON WEDNESDAY!

Intro to Muscluar System

Do Now:
Grade goal for quarter 3:
1. What grade do you want to accomplish for quarter 3
2. List 3 specific ways in which you can achieve this goal
3. List 3 specific ways in which Ms. V can help you achieve this goal
4. List 3 topics you definitely want to cover over second semester

Today in class we:
- Played introduction game
- Worked on grade goals
- Began discussion of muscular system

Homework due Monday, 1/14
Read Chpt 10: pg 169 - 172 and complete the check your recall on top of pg 172