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Understanding Bone Development and Growth Study Guide

This guide explains the dynamic process of bone remodeling, involving osteoblasts and osteoclasts, and its crucial role in maintaining calcium homeostasis through hormonal regulation by parathyroid hormone (PTH) and calcitonin. It also covers the essential nutritional and hormonal requirements for these processes and their clinical applications, such as bone fracture healing.

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A&P Exam 1 Instructions and Preparation

A&P Exam 1 Study Information

Exam 1 notes covering structural organization, organ systems, homeostasis, chemistry, cells, and tissues.

  • structural organization
  • organ systems
  • homeostasis
  • feedback loops
  • directional terms
  • planes
  • regions
  • atoms
  • bonds
  • water
  • polar/nonpolar
  • solutions
  • pH
  • energy
  • organic compounds
  • functional groups
  • macromolecules
  • membranes
  • transport
  • organelles

Anatomy and Physiology of the Skeletal System

Processes of Bone Formation

Ossification involves intramembranous ossification and endochondral ossification occurring during pre-natal, adolescent, remodeling, and repair scenarios.

  • Ossification
  • Osteogenesis
  • Intramembranous ossification
  • Endochondral ossification
  • Osteoblasts
  • Calcification
  • Trabeculae
  • Periosteum
  • Chondroblasts
  • Chondrocytes
  • Primary ossification center
  • Secondary ossification center
  • Medullary cavity
  • Epiphyseal plate
  • Articular cartilage
  • Hyaline cartilage

Developmental Ossification and Bone Growth

Developmental ossification involves all bones thickening via appositional growth and long bones lengthening via interstitial growth.

  • Appositional growth
  • Interstitial growth
  • Periosteum
  • Endosteum
  • Osteoblasts
  • Osteon formation
  • Epiphyseal plate
  • Diaphyseal side
  • Growth Plate - open
  • Growth Plate - Closed (Epiphyseal Line)
  • Chondrocytes

Bone Remodeling and Calcium Homeostasis

Bone remodeling involves calcification and resorption by osteoblasts and osteoclasts to maintain calcium homeostasis through PTH and calcitonin regulation.

  • Bone remodeling
  • Calcification
  • Resorption
  • Osteoblasts
  • Osteoclasts
  • Calcium homeostasis
  • Parathyroid hormone (PTH)
  • Calcitonin
  • Bone fracture healing
  • Minerals
  • Vitamins
  • Hormones

Gross Anatomy of the Skeletal System

This material covers the gross anatomy of the skeletal system, including bone types, surface markings, and the divisions of the axial and appendicular skeleton.

  • Types of bones
  • Long bone
  • Short bone
  • Flat bone
  • Irregular bone
  • Sesamoid bone
  • Sutural bones
  • Surface markings
  • Skull
  • Cranium
  • Vertebral column
  • Thorax
  • Pectoral girdles

Facial Bones, Sinuses, and Hyoid Bone

An anatomical study of the human skull, facial bones, paranasal sinuses, orbit, and hyoid bone.

  • Skull Osteology
  • Facial Foramina
  • Paranasal Sinuses
  • Nasal Cavity
  • Orbital Bones
  • Hyoid Bone
  • Mandibular Fossa
  • Pterygoid Processes
  • Sphenoidal Sinus
  • Frontal Sinus

Anatomy of the Vertebral Column

This content details the structure and characteristics of the vertebral column, including cervical, thoracic, lumbar, sacral, and coccygeal vertebrae.

  • vertebral foramen
  • intervertebral foramen
  • spinous process
  • transverse processes
  • articular processes
  • cervical vertebrae
  • thoracic vertebrae
  • lumbar vertebrae
  • sacrum
  • coccyx
  • atlas
  • dens
  • costovertebral joints
  • intervertebral discs
  • fibrocartilage
  • hyaline cartilage

Skeletal System and Bone Tissue

Osseous tissue is a living, active organ that undergoes continual remodeling of compact and spongy bone to provide structural framework, mineral homeostasis, and blood cell production.

  • Osseous tissue
  • Bone remodeling
  • Mineral homeostasis
  • Compact bone
  • Spongy bone
  • Osteogenic cell
  • Osteoblast
  • Osteocyte
  • Osteoclast
  • Osteons
  • Trabeculae
  • Red bone marrow
  • Yellow bone marrow
  • Nutrient artery
  • Periosteum

Appendicular Skeleton and Limb Anatomy

An anatomical study of the appendicular skeleton including the pectoral girdle, upper limb, pelvic girdle, and lower limb.

  • Pectoral girdle
  • Upper limb
  • Lower limb
  • Joint articulation
  • Skeletal landmarks
  • Bony structures
  • Muscle attachment

Integumentary System and Histology of Tissues

Integumentary System Functions and Pathologies

The integumentary system provides homeostasis through various body systems, manages wound healing processes, and is subject to pathologies such as burns, cancer, and vitamin D regulation.

  • Epidermal wound healing
  • Deep wound healing
  • Stages of wound healing
  • Homeostasis
  • Integumentary system interactions
  • Immunity and mechanical barriers
  • Cancer and cell cycle checkpoints
  • Benign and malignant tumors
  • Metastasis
  • Skin cancer types
  • ABCDE method for melanoma
  • Burns and Rule of Nines
  • Burn severity degrees
  • Vitamin D activation
  • Cholecalciferol

Integumentary System Structure, Anatomy, and Function

The integumentary system consists of the cutaneous membrane, including the epidermis and dermis, which contains various cell types and strata to perform functions such as expressing emotions and vitamin D synthesis.

  • Epidermis
  • Dermis
  • Keratinized stratified squamous epithelium
  • Keratinocytes
  • Langerhans cells
  • Melanocytes
  • Merkel cells
  • Epidermal strata
  • Stratum corneum
  • Stratum granulosum
  • Stratum spinosum
  • Stratum basale
  • Melanin
  • Papillary layer
  • Reticular layer
  • Dermal papillae
  • UV penetration
  • Vitamin D synthesis

Integumentary System Anatomy, Physiology, and Homeostasis

This content explores skin structure, hair, nails, and glands, while examining wound healing, cancer, and the integumentary system's role in maintaining homeostasis across various body systems.

  • Dermis papillary and reticular regions
  • Epidermal ridges
  • Wrinkle response and vasoconstriction
  • Keratinized cells
  • Hair matrix and nail matrix
  • Terminal hair
  • Lanugo
  • Vellus hair
  • Sebaceous glands
  • Eccrine sweat glands
  • Apocrine sweat glands
  • Ceruminous glands
  • Nail body and eponychium
  • Sebaceous, eccrine, apocrine, and ceruminous glands
  • Epidermal and deep wound healing
  • Homeostasis and systemic interactions
  • Skin cancer types and ABCDE method
  • Cell cycle checkpoints
  • Burn severity and Rule of Nines

Epidermis Structure and Skin Color

The epidermis is composed of stratified keratinocytes and contains various strata, influencing skin color through melanin production and UV penetration.

  • Epidermis
  • Melanin
  • Skin color
  • Hair color
  • Nevus
  • UV penetration
  • Stratified keratinocytes
  • Strata
  • Thin skin
  • Thick skin
  • Stratum corneum
  • Stratum granulosum
  • Stratum spinosum
  • Stratum basale

Introduction to Histology and Epithelial Tissues

A study of tissues and histology focusing on the classification, structure, and function of epithelial tissues and glands.

  • Histology
  • Epithelial tissue
  • Connective tissue
  • Cell junctions
  • Tight junctions
  • Adherens junctions
  • Desmosomes
  • Hemidesmosomes
  • Basement membrane
  • Simple squamous epithelium
  • Simple cuboidal epithelium
  • Simple columnar epithelium
  • Pseudostratified columnar epithelium
  • Stratified squamous epithelium
  • Keratinized stratified squamous epithelium
  • Nonkeratinized stratified squamous epithelium
  • Stratified cuboidal epithelium
  • Stratified columnar epithelium
  • Transitional epithelium
  • Glandular epithelium

Introduction to Connective Tissue Types

Connective tissue is composed of cells and a matrix consisting of ground substance and fibers.

  • Connective tissue matrix
  • Ground substance
  • Fibers
  • Collagen fibers
  • Elastic fibers
  • Reticular fibers
  • Fibroblasts
  • Adipocytes
  • Macrophages
  • Leukocytes
  • Chondrocytes
  • Osteocytes
  • Areolar connective tissue
  • Adipose tissue
  • Reticular connective tissue
  • Dense regular connective tissue
  • Dense irregular connective tissue
  • Elastic connective tissue
  • Cartilage
  • Hyaline cartilage

Histology and Functions of Muscle Tissue

This content describes skeletal, cardiac, and smooth muscle tissue types, their histological characteristics, and the processes of tissue repair.

  • Skeletal muscle tissue
  • Cardiac muscle tissue
  • Smooth muscle tissue
  • Striations
  • Intercalated discs
  • Desmosomes
  • Voluntary and involuntary control
  • Tissue repair
  • Fibrosis
  • Granulation tissue

Anatomy and Classification of Skeletal Joints

Movements of the Scapula and Glenohumeral Joint

  • Scapular kinematics
  • Scapular protraction
  • Scapular retraction
  • Scapular elevation
  • Scapular depression
  • Glenohumeral joint
  • Ball and socket joint
  • Flexion
  • Extension
  • Adduction
  • Medial rotation
  • Lateral rotation

Types and Movements of Synovial Joints

This content explores synovial joint types including hinge, ball and socket, pivot, condyloid, saddle, and plane joints along with their associated motions.

  • Hinge joint
  • Ball and socket joint
  • Pivot joint
  • Condyloid joint
  • Saddle joint
  • Plane joint
  • Flexion
  • Extension
  • Pronation
  • Supination
  • Rotation
  • Adduction
  • Dorsiflexion
  • Plantar flexion
  • Uniaxial
  • Biaxial
  • Multiaxial
  • Humeroulnar joint
  • Humeroradial joint

Anatomy and Classification of Joints

Joints, also known as articulations or arthrosis, are classified by structural connective tissue type and functional degree of movement possible.

  • Articulations
  • Arthrosis
  • Joints
  • Facet
  • Head
  • Fossa
  • Fibrous joints
  • Cartilaginous joints
  • Synovial joints
  • Synarthrosis
  • Amphiarthrosis
  • Articular capsule
  • Synovial cavity

Classification of Fibrous and Cartilaginous Joints

Fibrous joints held by dense irregular connective tissue include sutures, syndesmoses, and interosseous membranes, while cartilaginous joints consist of synchondroses and symphyses.

  • Fibrous joints
  • Dense irregular connective tissue
  • Sutures
  • Syndesmoses
  • Interosseous membranes
  • Synostosis
  • Cartilaginous joints
  • Synchondroses
  • Symphyses
  • Fibrocartilage

Anatomy of Synovial Joints and Supporting Structures

  • Synovial cavity
  • Articular cartilage
  • Synovial fluid
  • Fibrous membrane
  • Synovial membrane
  • Accessory ligaments
  • Articular discs (menisci)
  • Articular capsule

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