Tissue level

• How does muscle tissue function in the body?

  It allows you to move
• What are the key characteristics of nervous tissue?

  • Transmits electrical signals for sensation, movement, and regulation
  • Contains neurons and supporting glial cells
  • Examples: brain, spinal cord, nerves
• What are the key characteristics of connective tissue?

  • Provides support and structure
  • Contains cells embedded in an extracellular matrix
  • Examples: bone, cartilage, adipose, blood
• What are the key characteristics of epithelial tissue?

  • Forms the outer layer and lines internal organs
  • Provides protection, secretion, and absorption functions
  • Examples: skin, lining of digestive tract, lining of blood vessels
• What is the function of the cell membrane in an epithelial cell?

  It separates the cell from its external environment
• What are the main functions of epithelial tissue?

  Covering body surfaces and lining cavities
• What are the main functions of the different epithelial cell types?

  • Protection: Simple squamous, stratified squamous
  • Absorption/Secretion: Simple columnar, simple cuboidal
  • Structural support: Stratified columnar, stratified cuboidal
  • Sensory: Stereocilia
  • Increased surface area: Microvilli
• What are the main characteristics of tissues?

  • Group of similar cells
  • Work together for a common function
  • Combine to form organs
• What is the function of cilia in epithelial tissue?

  To move substances across the epithelial surface
• What is the definition of tissue?

  A group of similar cells
• What is a unique characteristic of transitional epithelium?

  It can stretch and change shape
• What is the name of the structure that contains the nucleus in an epithelial cell?

  Nucleus
• How do the four main tissue types work together in the body?

  • They form the structure of the body
  • They perform various functions
  • They keep the body running smoothly
• What are the different cell shapes found in epithelial tissue?

  • Squamous: Flat cells
  • Cuboidal: Cube-shaped cells
  • Columnar: Column-shaped cells
• What are the four types of tissue shown in the image?

  Connective tissue, epithelial tissue, muscle tissue, and nervous tissue
• What are the tiny building blocks of our bodies called?

  Cells
• What is the role of epithelial tissue?

  It protects and lines your body
• What are the four main types of tissue?

  Connective, epithelial, muscle, nervous
• What is the function of blood in connective tissue?

  Transport medium with red blood cells
• What is the name of the type of connective tissue shown in the sixth image?

  Dense
• What is the main component of connective tissue?

  Matrix
• What is the role of loose connective tissue?

  Supports organs and contains fibers
• What type of control does skeletal muscle have?

  Voluntary control
• How does the transverse section of cardiac muscle differ from the longitudinal section?

  The transverse section shows the cross-sectional view of the muscle fibers, while the longitudinal section shows the length-wise view
• What do tissues combine to form?

  Organs
• What are the patterns of epithelial tissue arrangement?

  • Simple: One layer
  • Stratified: Multiple layers
  • Cell shapes:
  • Squamous: Flat
  • Cuboidal: Cube-shaped
  • Columnar: Column-shaped
• What type of control does smooth muscle have?

  Involuntary control
• What is formed when cells of the same kind work together?

  A tissue
• What is a key feature of cardiac muscle cells?

  Branched cells with intercalated discs
• How does the structure of connective tissue differ from epithelial tissue?

  Connective tissue cells are widely scattered
• What is the name of the type of connective tissue shown in the first image?

  Blood
• What does the matrix of connective tissue consist of?

  Ground substance and fibers
• What is the primary function of adipose tissue?

  Fat storage
• How is connective tissue described in the analogy?

  Like delivery trucks that carry things
• What are cilia in epithelial cells used for?

  They help sweep away dirt
• What is the function of smooth muscles?

  They help digest food in the stomach
• What are the key structural features of the different epithelial cell types?

  • Simple squamous: Single layer of flat cells
  • Simple columnar: Single layer of tall, column-shaped cells
  • Stratified squamous: Multiple layers of flat cells
  • Stratified columnar: Multiple layers of tall, column-shaped cells
  • Simple cuboidal: Single layer of cube-shaped cells
  • Stratified cuboidal: Multiple layers of cube-shaped cells
  • Transitional: Cells change shape from cuboidal to squamous
  • Stereocilia: Hair-like projections on the apical surface
  • Microvilli: Finger-like projections on the apical surface
• What are the different types of epithelial cells shown in the image?

  • Simple squamous
  • Simple columnar
  • Stratified squamous
  • Stratified columnar
  • Simple cuboidal
  • Stratified cuboidal
  • Transitional
  • Stereocilia
  • Microvilli
• How can epithelial cells be arranged?

  • One layer (single row of blocks)
  • Many layers (tall tower of blocks)
• What are the characteristics of connective tissue?

  • Cells scattered in a matrix
  • Example: blood