Human Anatomy - Some Points for IE Students

Muscles
   1. There are three different types of muscles. These are the skeletal muscles, the cardiac muscles and the smooth muscles.
   2. The skeletal type are the those that are trained when people exercise. They are visible in human body.
   3. Most skeletal muscles are directly attached to the bones via tendons.
   4. The smooth muscles are also known as involuntary muscles, and are found within walls of organs. These do their work without conscious control by humans and are within the body. 
   5. The Cardiac muscle is in the heart.
   6. The muscles work by contracting and relaxing. For every contraction a person does, there's another muscular organ that can reverse the movement and reverses it.
   7. Typically, one end of the muscle is attached to a movable part, while the other end is attached to a fixed part.
   8. There are about 640 muscles in the human body.
   9. Almost all of the muscles come in pairs. So there are around 320 pairs.
   10. The muscles are made out of muscle cells which contain thousands or millions of myofibrils.
  11.  "Facia" a type of connection tissue is wrapped around the muscles.

 

 

Each muscle is made up of a large number of muscle fibres, approximately 0.004 inches (0.1 mm) in diameter and ranging in length from 0.2 to 5.5 inches (5-140mm), depending on the size of the muscle. These individual fibres are bound together in bundles by connective tissue. These bundles are penetrated by tiny blood vessels that carry oxygen and nutrients to the muscle fibres. Also there are nerves that carry electrical impulses from the spinal cord and brain.

 

In the muscle fibre there are myofibrils and myofilaments. The myofilaments are of two types: thick filaments called as myosin and thin filaments called as actin.

 

(Source: Benjamin Niebel and Frievalds, Methods, Standards and Work Design, 11th Edition)


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A good reference for various systems in the human body

Skeletal system
Muscular system
Circulatory system
Nervous system
Respiratory system
Digestive system
Excretion system
Endocrine system
Reproductive system
Lymphatic system

http://web.jjay.cuny.edu/~acarpi/NSC/14-anatomy.htm

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Lecture Notes of a Course

HUMB 1020 - Introductory Anatomy

Text of overhead transparancies for introductory lectures in anatomy

1. Introduction 
2. Terminology 
3. Bones 
4. Joints 
5. Muscles & Nerves 
6. Circulatory System & Blood 
7. Respiratory System 
8. Digestive System 
9. Excretory & Reproductive Systems
   

 

http://www.leeds.ac.uk/chb/humbmods.html#HUMB1020

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Video Lecturers

Very good videos HD Videos.

1. Lecture #1 : Introduction
2. Lecture #2
3. Lecture #3
4. Lecture #4
5. Lecture #5
6. Lecture #6
7. Lecture #7
8. Lecture #8
9. Lecture #9
10. Lecture #10
11. Lecture #11
12. Lecture #12
13. Lecture #13
14. Lecture #14
15. Lecture #15
16. Lecture #16
17. Lecture #17
18. Lecture #18
19. Lecture #19
20. Lecture #20
21. Lecture #21
22. Lecture #22
23. Lecture #23
24. Lecture #24
25. Lecture #25
26. Lecture #26
27. Nervous System XI
28. Lecture #28
29. Lecture #29
30. Lecture #30
31. Lecture #31
32. Female Reproductive System
33. Lecture #33
34. Lecture #34
35. Lecture #35

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BSC1085:Anatomy and Physiology 1
Hillsborough Community College Online Course , Prof. Nick Ehringer 

http://freevideolectures.com/Course/2633/BSC1085-Anatomy-and-Physiology-1  23 video lecutures

 

1. Lecture #1
2. Lecture #2
3. Lecture #3
4. Lecture #4
5. Lecture #5
6. Lecture #6
7. Lecture #7
8. Lecture #8
9. Lecture #9
10. Lecture #10
11. Lecture #11
12. Lecture #12
13. Lecture #13
14. Lecture #14
15. Lecture #15
16. Lecture #16
17. Lecture #17
18. Lecture #18
19. Lecture #19
20. Lecture #20
21. Lecture #21
22. Lecture #22
23. Lecture #23

 

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original knol number 2652