Notes on Muscle Tissue

  breadcrumb arrow   Rahul's Noteblog   breadcrumb arrow   Notes on Anatomy   breadcrumb arrow   Notes on Muscle Tissue

Layers of Muscle Fiber:

Endomysium:

+ Surrounds individual muscle fibers.

Perimysium:

+ Surrounds groups of muscles.

Epimysium:

+ Surrounds entire muscle.

Sacromere structure:

• Thin filaments contain actin, tropomyosin, troponin.

• Thick filaments contain myosin.

Structure of a Myofiber:

image of myofiber

Composition of Myofiber Bands:

• I bands composed of thin filaments; variable length.

• A bands composed of thik and thin filaments; constant length.

• H bands composed of thick filaments; variable length.

Additional Notes:

• Cardiac tissue: fascia adherens; intercalated discs - Z-line.

• Myoglobin: red.

• Triad of skeletal muscle: A-I band junction of sarcomeres.

• White fibers: less mitochondria; less myoglobin; less cytochrome s; increased innervation.

• Smooth muscle: corkscrew-shaped nucleus.

Additional Reading:

Histology and Cytology

1. Cell Components
2. Nervous Tissue
3. Muscle Tissue
4. Lymphoid Tissue
5. Integument
6. Respiratory System
7. Gastrointestinal System
8. Renal/Urinary System
9. Male Reproductive System
10. Female Reproductive System

Gross Anatomy

1. Back and Nervous System
2. Thorax
3. Abdomen, Pelvis, and Perineum
4. Upper Limb
5. Lower Limb
6. Head and Neck
7. Chest Wall
8. Shoulder

Anatomy Videos

1. Video of Musculoskeletal Examination in a Clinical Setting
1. Video of HEENT Examination in a Clinical Setting

Related Topics

1. Jugular Venous Distention Workup

Medical Images

Useful Medical Images & Diagrams (link opens in a new window)

Random Pages:

Why did I become a doctor? How To Optimize Your Web Server
Video of me playing Unknown Easy Blues Piano Notes on Renal/Urinary System
Notes on Lower Limb Notes on Prenatal Infections
Notes on Energy Metabolism How to Reduce Blood Pressure without Medications?
Differentiation of the Face Diagram of Gastric Blood Supply
Notes on Basic Gastrointestinal Physiology Life in a Drop of Water
Review of eBoundhost VPS hosting What is an ELEK`s Test?
Why did I decide to become a doctor? Medical School Admissions Essay Video: Titanic Piano Theme: The Portrait
Corporate Failure: The Enron Case My Experience during the Iraqi Invasion of Kuwait
USMLE Blood Lab Values Regulation of Heart Rate by Autonomic Nervous System
Images of Antibodies What is Steady State Concentration?
Notes on Nervous Tissue Differentiation and Anatomy of a Blastocyst
Notes on Cell Components Notes on Nervous Tissue
Voices from Hell: My Experience in Mussoorie, India Video of Cardiology Examination in a Clinical Setting

Please Do Not Reproduce This Page

This page is written by Rahul Gladwin. Please do not duplicate the contents of this page in whole or part, in any form, without prior written permission.