Skeletal and Muscular System

Muscle tissue is a soft tissue that makes up most of the tissues in the muscles of the human muscular system. Other tissues in muscles are connective tissues, such as tendons that attach skeletal muscles to bones and sheaths of connective tissues that cover or line muscle tissues. Only muscle tissue per se, however, has cells with the ability to contract. Each skeletal muscle consists of hundreds — or even thousands — of skeletal muscle fibers, which are long, string-like cells. As shown in the figure below, skeletal muscle fibers are individually wrapped in connective tissue called endomysium. The skeletal muscle fibers are bundled together in units called muscle fascicles, which are surrounded by sheaths of connective tissue called perimysium. Each fascicle contains between ten and 100 (or even more!) skeletal muscle fibers. Fascicles, in turn, are bundled together to form individual skeletal muscles, which are wrapped in connective tissue called epimysium. The connective tissues in skeletal muscles have a variety of functions. They support and protect muscle fibers, allowing them to withstand the forces of contraction by distributing the forces applied to the muscle. They also provide pathways for nerves and blood vessels to reach the muscles. In addition, the epimysium anchors the muscles to tendons.

At the end of the course, you should be able to describe

  1. The muscular tissue
  2. The skeletal muscles

Course Curriculum

SECTION 1: OVERVIEW OF MUSCULAR TISSUE

1
Muscular Tissue
Self-Paced
2
Tissue Membranes
Self-Paced
3
The Skin
Self-Paced
4
Structure of the Skin: Dermis
Self-Paced
5
Skin Color
Self-Paced
6
Cell Junctions
Self-Paced
7
Gap Junctions
Self-Paced
8
Accessory Structures of the Skin
Self-Paced
9
Nails
Self-Paced
10
Hair
Self-Paced
11
Functions of the Integumentary System
Self-Paced
12
Thermoregulation
Self-Paced
13
Quiz
10 questions

SECTION 2: CUTANEOUS SENSATION

1
The Somatosensory System
Self-Paced
2
Vitamin D
Self-Paced
3
Wound Healing
Self-Paced
4
Quiz
10 questions

SECTION 3: OVERVIEW OF CANCER

1
Cancer
Self-Paced
2
Cell Signaling and Cell Death
Self-Paced
3
Quiz
10 questions

SECTION 4: OVERVIEW OF THE MUSCULOSKELETAL SYSTEM

1
The Musculoskeletal System
Self-Paced
2
Bones of the Head
Self-Paced
3
The Appendicular Skeleton
Self-Paced
4
Cartilage
Self-Paced
5
Quiz
10 questions

SECTION 5: INTRODUCTION TO BONE

1
Gross Anatomy
Self-Paced
2
Supply of Blood and Nerves to Bone
Self-Paced
3
Microscopic Anatomy of Bone
Self-Paced
4
Acid-Base Disorders
Self-Paced
5
Embryonic and Fetal Bone Formation
Self-Paced
6
Postnatal Bone Growth
Self-Paced
7
Bone Remodeling
Self-Paced
8
Role of Growth Factors
Self-Paced
9
Bone and Calcium Homeostasis
Self-Paced
10
Wrapping Up
Self-Paced
11
Quiz
10 questions

SECTION 1: OVERVIEW OF MUSCULAR TISSUE

1
Muscular Tissue
Self-Paced
2
Tissue Membranes
Self-Paced
3
The Skin
Self-Paced
4
Structure of the Skin: Dermis
Self-Paced
5
Skin Color
Self-Paced
6
Cell Junctions
Self-Paced
7
Gap Junctions
Self-Paced
8
Accessory Structures of the Skin
Self-Paced
9
Nails
Self-Paced
10
Hair
Self-Paced
11
Functions of the Integumentary System
Self-Paced
12
Thermoregulation
Self-Paced
13
Quiz
10 questions

SECTION 2: CUTANEOUS SENSATION

1
The Somatosensory System
Self-Paced
2
Vitamin D
Self-Paced
3
Wound Healing
Self-Paced
4
Quiz
10 questions

SECTION 3: OVERVIEW OF CANCER

1
Cancer
Self-Paced
2
Cell Signaling and Cell Death
Self-Paced
3
Quiz
10 questions

SECTION 4: OVERVIEW OF THE MUSCULOSKELETAL SYSTEM

1
The Musculoskeletal System
Self-Paced
2
Bones of the Head
Self-Paced
3
The Appendicular Skeleton
Self-Paced
4
Cartilage
Self-Paced
5
Quiz
10 questions

SECTION 5: INTRODUCTION TO BONE

1
Gross Anatomy
Self-Paced
2
Supply of Blood and Nerves to Bone
Self-Paced
3
Microscopic Anatomy of Bone
Self-Paced
4
Acid-Base Disorders
Self-Paced
5
Embryonic and Fetal Bone Formation
Self-Paced
6
Postnatal Bone Growth
Self-Paced
7
Bone Remodeling
Self-Paced
8
Role of Growth Factors
Self-Paced
9
Bone and Calcium Homeostasis
Self-Paced
10
Wrapping Up
Self-Paced
11
Quiz
10 questions

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