Transcript Do Now: 02/15-19 - Ed White Anatomy and Physiology

Do Now: 02/15-19
On your own sheet of paper:
Predict how well you did on the Unit 5
Exam.
How does this compare to your grade for
Unit 4?
Unit 5 Test
O No test corrections, so why
should we reflect on what we
missed?
O These questions will likely be on
the final and on the CAST test!
O Unlike prior years the CAST now
counts for 20% of your second
semester grade.
Reflection Guide
O Follow the directions to
complete the handout.
O Make sure you completely
answer the questions on the
back!
Unit 6: Muscle System
February 15 or 19, 2013
Muscle System: Skeletal Muscle
Function: 1. list out the three purposes of the muscular system
2.
3.
Structure: Composed of connective tissue, muscle tissue, nervous
tissue
Connective Tissue
O Many muscles can be at the same location
in the body.
O _________________- is the connective
tissue separates muscles and holds it in
position
Muscle Tissue
O The anatomy of a muscle consists of smaller
and smaller bundles of different things.
O ___________-bundles of muscle fibers that
make up a muscle
O Myofibril- bundles of protein fibers that
make up a muscle fiber
O Muscle fiber- the basic unit of a muscle
made of __________
Myofibril Anatomy
A myofibril is made of alternating strands of
thick and thin protein that don’t go all of the
way down the myofibril.
Two components:
O Myosin:
O Actin:
Sarcomere: the repeating unit of a myofibril
that goes from Z line to Z line
Connect: What is the Z line?
So what does that look like?
Fascicle
Muscle
Myofibril
Muscle
fiber
On your notes
O Put the following in order from smallest to
largest:
O Muscle, Muscle fibers, Myofibrils, Fascicles,
Actin and Myosin
Practice
O Complete the following handout
O Begin answering Chapter 8 “Check your
recall” questions 1-14
O These questions go into great detail that we
did not cover during notes.
O Use your textbook to explore the additional
structures of skeletal muscle, and the way in
which it functions