gen bio

• Gen-Bio


  Branch of biology with study of structure
• Physiology


  Scientific study of functions
• MRI


  Noninvasive medical imaging test that creates body images using a large magnet and radio waves
• CT scans


  Combine a series of x-ray images taken from different angles to provide more detailed information than plain x-rays
• Integumentary system


  Set of organs forming the outermost layer of an animal's body, comprising the skin
• Functions of Integumentary System

  • Maintain water balance
  • Protect the deeper tissues
  • Excrete waste
  • Regulate body temperature
  • Detect sensory stimuli
• Skin is the largest organ of the human body, comprising 12-15 percent of total body weight
• Elastin is the most abundant protein in our body
• Sweat glands


  Located in the deeper layer of skin
• Subcutaneous layer


  Essentially composed of adipose (fat) cells, providing a layer of insulation to protect internal organs
• Skeletal system


  The foundation of our body
• Skeletal muscle


  Found throughout the body
• Skull


  Made up of cranial bones and facial bones
• Spinal cord


  Column of nerve tissue that connects the brain to the skeletal system
• Functions of the Skeletal System

  • Support structure
  • Gives the body its shape
  • Makes blood cells
  • Provides protection for internal organs
  • Stores minerals
  • Allows movement
• Anatomy

  Any branch of biology with study of structure
• MRI


  Noninvasive medical imaging that uses a large magnet and radio waves to combine a series of x-ray images taken from different angles to provide detailed information, more than a plain X-ray
• Integumentary system


  Set of all organs forming the outermost layer of an animal's body
• Integumentary system


  • Maintains water balance
  • Protects the deeper tissues
  • Excretes wastes
  • Regulates body temperature
  • Provides attachment sites for muscles
• Skin


  Largest organ of the human body, comprising 12-15 percent of total body weight
• Epidermis


  Outermost layer of the skin, providing initial barrier to the external environment
• Merkel cells


  Specialized cells in the skin
• Keratin


  Protein that helps form hair, nails and skin
• Keratinocytes


  Main constituent cell in the epidermis, forming the barrier
• Dermis


  Underlying connective tissue layer
• Dermis


  • Provides nutrition to the cells
  • Contains collagen, which serves as one of the main building blocks for bones, skin, hair
  • Contains elastin, the most abundant protein in our body organs
• Sweat glands


  Located in the deeper layer of the skin
• Subcutaneous layer


  Essentially composed of adipocytes, providing a layer of insulation to protect internal organs
• Skeletal system


  Foundation of our body, including skeletal muscle found throughout the body, the skull made up of cranial and facial bones, and the spinal cord
• Skeletal system


  • Provides support structure to the body
  • Gives the body its shape
  • Makes blood cells
  • Provides protection for internal organs
  • Stores minerals
  • Allows movement
• The main function of the endocrine system is to secrete hormones into the bloodstream, which then travel throughout the body.