ZOO 3731 Lecture 10: ZOO 3731- Class Assignment (Chapter 10)

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Published on 26 Aug 2020
School
Department
Course
Professor
Human Anatomy Muscle Tissue Dr. Lisa Brinn
Group members:
Now that you understand the concept of origins & insertions, think about where a muscle must be located and what it
must attach to in order to be able to perform a particular action (or vice versa).
Place the structure on the figure below. And match their functions.
1.myosin-binding site
2.actin
3.tropomyosin
4.troponin
1.actin-binding site
2.myosin heads
3.myosin tail
4.myosin neck
5.ATP-binding site
Place the following muscle contraction events in the correct order.
Calcium is taken up by sarcoplasmic reticulum
Tropomyosin to roll away from the active sites on actin and expose them for binding
The myosin head returns to its resting state
Myosin binds to the active sites on the actin molecules
Tropomyosin (blue ribbons) covers up the active sites
The myosin head pivots, pushing the thin filaments (actin, tropomyosin, troponin) closer together
Calcium is released by sarcoplasmic reticulum
ATP is needed to release the myosin head from the actin molecule
Calcium binds to troponin
Bony Origin
Bony
Insertion
Location of Muscle (Anterior
or Posterior)
Joint Moved
Coxal bone
Femur
Anterior
Radius
Carpals
Posterior
Elbow
Femur
Tibia
Posterior
Ankle
Amanda Sanchez, Heder Garcia, Daniela Pantoja, Jenifer Alvarez, Brianna Wint
hip
flexion
wrist
hyperextension or extension
humerus
anterior
ulna/radius
knee
flexion
tibia/fibula
meta/tarsals
anterior
4
2
3
1
2
1
5
3
4
8
3
7
4
9
5
1
6
2
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Document Summary

Now that you understand the concept of origins & insertions, think about where a muscle must be located and what it must attach to in order to be able to perform a particular action (or vice versa). Amanda sanchez, heder garcia, daniela pantoja, jenifer alvarez, brianna wint. Posterior hip wrist flexion hyperextension or extension humerus ulna/radius anterior. Place the following muscle contraction events in the correct order. Tropomyosin to roll away from the active sites on actin and expose them for binding. The myosin head returns to its resting state. Myosin binds to the active sites on the actin molecules. Tropomyosin (blue ribbons) covers up the active sites. The myosin head pivots, pushing the thin filaments (actin, tropomyosin, troponin) closer together. Atp is needed to release the myosin head from the actin molecule. 8 a. wrapping b. multipennate c. convergent d. parallel e. circular f. unipennate g. parallel with tendinous bands h. bipennate.

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