Human Body Systems: Skeletal, Muscular, and Integumentary Anatomy

The Skeletal System: Structure and Function

Functions of the Skeletal System

  • Support and shape to the body
  • Protection of internal organs
  • Movement in union with muscles
  • Storage of minerals (calcium, phosphorus) and lipids
  • Blood cell production

The skeletal system accounts for approximately 20% of the body’s weight and includes bones, cartilage, tendons, and ligaments.

Bones of the Human Skeleton

There are 206 bones in the adult human skeleton, divided into two main parts:

  1. Axial Skeleton (80 bones)

    Includes

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Connective Tissue Types: Structure, Function, and Location

(a) Connective tissue proper: Loose connective tissue, areolar
Description: Gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells.
Function: Wraps and cushions organs; its macrophages phagocytize bacteria; plays an important role in inflammation; holds and conveys tissue fluid.
Location: Widely distributed under epithelia of the body, e.g., forms lamina propria of mucous membranes; packages organs; surrounds capillaries.

(b) Connective

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Connective Tissues: Cells, Fibers, and Types

Connective Tissue

  • Tissue
  • Formed from the mesoderm during embryonic development.
  • A set of tissues with the same function, tissue together, sustaining the body and protecting organs.
  • Tissue called connective tissue.
  • It consists of cells contained in an amorphous substance, the extracellular matrix, formed by H2O, salts, proteins, polysaccharides, and fibers that form a network.

Cells

  • Fibroblasts: Are responsible for the formation of extracellular structures. They secrete the extracellular matrix, protein,
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Understanding Skin: Anatomy, Function, and Common Conditions

Understanding Your Skin: Anatomy, Function, and Conditions

Your skin is the largest organ in your body, performing several vital functions:

  • Protection from injury and infection
  • Temperature regulation
  • Sensory reception
  • Regulation of water loss
  • Vitamin D synthesis

Epidermal Cells

The epidermis, the outermost layer of skin, contains several types of cells:

  • Keratinocytes (90%): Protect and waterproof the skin.
  • Melanocytes (8%): Produce melanin, protecting the skin by absorbing UV light.
  • Langerhans Cells: Participate
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EU Harmonization of Jurisdiction Laws

Why Did the EU Harmonize the Law of Jurisdiction?

Recitals 3 and 4 of the Regulation clarify the EU’s intent. The EU aims to maintain and develop an area of freedom, security, and justice. This is achieved by facilitating access to justice, particularly through the principle of mutual recognition of judicial and extrajudicial decisions in civil matters. For the gradual establishment of such an area, the Union is to adopt measures relating to judicial cooperation in civil matters with cross-border

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