Anatomy and Physiology Worksheet 3

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  1. How many muscles are in the body?
    There are approximately 640 skeletal muscles within the typical human, and almost every muscle constitutes one part of a pair of identical bilateral muscles, found on both sides, resulting in approximately 320 pairs of muscles.

    However, opinions on this vary widely.
  2. List three functions of the muscular system.
    • Produce Movement
    • Storage of Creatine Phosphate for Quick Energy 
    • Protection of Internal Organs
    • Posture/Gives Definition to the Frame of the Body
    • Helps Maintain a Normal Body Temperature
    • Aids in Blood Return to the Heart
  3. What is the chemical energy used by muscle called?
    Adenosine Triphosphate (ATP)?????
  4. Give another name for muscle wasting
    Atrophy
  5. Give another name for muscle growth
    Hypertrophy
  6. Give another name for muscle fibre splitting
    Hyperplasia
  7. List three types of muscle tissues
    • Cardiac
    • Smooth
    • Skeletal
  8. List two characteristics of skeletal muscle tissue.
    • Striated: When the tissue has been injected with a dye, it has alternating light and dark bands when examined under a microscope.
    • Voluntary Tissue: Works mainly under a human's conscious control by the nervous system. However, some muscles are also controlled subconsciously to some extent e.g. muscles used during respiration and postural muscles.
  9. List the characteristics of cardiac muscle
    • This type of tissue makes up the heart wall.
    • Striated: When the tissue has been injected with a dye, it has alternating light and dark bands when examined under a microscope.
    • Involuntary: the alternating contraction and relaxation stages go a heart be at is not under a human's conscious control.
  10. List the characteristics of smooth muscle.
    • This type of tissue is located in the walls of hollow internal structures such as blood vessels, airways and most organs in the abdominal area.
    • It is also found in the skin where it attaches to the hair follicles.
    • Not Striated
    • Usually Involuntary 
  11. What is the most superficial muscle in the anterior thigh?
    Rectus Femoris
  12. What is the action of the tibias anterior?
    Dorsiflexes the door and assists in inversion.
  13. What is the action of the rhomboids?
    Retracts, adducts, elevates and internally rotates the scapula.
  14. What is the action of the rectus abdominus?
    • With the origin fixed, the chest wall will move towards the pelvis.
    • With the insertion fixed, the pelvis will move towards the chest.
  15. Name the action(s) of the rectus femurs.
    • Extends the knee
    • Flexes the hip
Author:
faheycg
ID:
313737
Card Set:
Anatomy and Physiology Worksheet 3
Updated:
2016-01-04 21:32:48
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anatomy physiology
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Anatomy and Physiology Worksheet 3
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