Notes
Slide Show
Outline
1
Anatomy and Physiology I
  • Tissue Types
2
Key Terms
  • Histology:
    •  the study of tissues.


  • Tissues:
    •  groups of cells which are similar in structure and which perform common or related functions.
3
Four Basic Kinds of Tissues
  • Epithelial Tissue
  • Connective Tissue
  • Muscle Tissue
  • Nervous Tissue


4
Epithelial Tissue
  • Epithelial Tissue Locations:
    •  Covers the body
    •  Lines the cavities, tubes, ducts and blood vessels inside the body
    • Covers the organs inside body cavities
  • Epithelial Tissue Functions:
    •  Protection from physical & chemical injury,
    •  Protection against microbial invasion,
    •  Contains receptors which respond to stimuli,
    •  Filters, secretes & reabsorbs materials and
    •  Secretes serous fluids to lubricate structures.



5
Connective Tissue
  • Connective Tissue:
    •  Most abundant & widely distributed tissue
  • Connective Tissue Functions:
    •  Connects, binds and supports structures,
      • Tendons, ligaments, etc.
    •  Protects  & cushions organs and tissues,
    •  Insulates (fat) and
    •  Transports substances (blood).



6
Muscle Tissue
  • Muscle Tissue:
    •  Associated with the bones of the skeleton, the heart and in the walls of the hollow organs of the body.
  • Muscle Tissue Functions:
    •  Movement
    •  Locomotion
    •  Maintains posture
    •  Produces heat
    •  Facial expressions
    •  Pumps blood
    •  Peristalsis



7
Nervous Tissue
  • Nervous Tissue:
    •  Main component of the nervous system,
      • ie., brain, spinal cord & nerves.
  • Nervous Tissue Functions:
    •  Regulates & controls body functions
    •  Generates & transmits nerve impulses
    •  Supports, insulates and protects impulse generating neurons.




8
Identify the following cell organelles
  • Cell Organelles
    •  cell membrane
    •  cytoplasm
    •  nucleus
    •  nuclear membrane
    •  nucleolus
    •  chromosomes
    •  chromatin



9
Cell Organelles - Onion
10
Cell Organelles - Onion
11
Cell Organelles - Onion
12
Cell Organelles - Onion
13
Cell Organelles - Onion
14
Identify the five stages of mitosis
  • Stages of Mitosis, or the Cell Cycle:
    •  interphase
    •  prophase
    •  metaphase
    •  anaphase
    •  telophase



15
Interphase
  • Metabolic phase
  • Cell growth
  • DNA replication
  • Centriole replication
  • Protein Synthesis
  • Visible Nucleus & nuclear membrane
  • Visible nucleoli
  • Chromatin
16
Prophase
  • Nuclear membrane disappears
  • Nucleoli disappear
  • Chromsomes appear
  • Centrioles move to opposite sides of cell
  • Spindle fibers from centrioles connect with chromosomes
17
Metaphase
  • Chromosomes line up on equator of the cell
18
Anaphase
  • Chromatids from each chromosome separate & are pulled to opposite sides of the cell.
19
Telophase
  • Chromatids reach extremes of cell


20
Start Editing Here…
21
"Specific tissue types & representative..."
  • Specific tissue types & representative cell types we will review:


    •  epithelial
      • Squamous
      • Cuboidal
      • Columnar
    •  connective
      • Adipose
      • Bone
      • Hyalaine cartilage
    •  muscle
    •  nervous



22
Squamous Epithelium
  • Simple – one cell thick


23
Cuboidal Epithelium
  • Simple – one cell thick
  • Roughly cube shaped


24
Columnar Epithelium
  • Simple – one cell thick
  • Column shaped (long & narrow)
  • Line digestive tract where reabsorption & secretion occurs.


25
"Specific Connective Tissue Types:"
  • Specific Connective Tissue Types:


      • Adipose
      • Bone
      • Hyalaine cartilage


26
Connective - Adipose
  • Honeycomb or chickenwire appearance


27
Connective - Bone
  • Tree ring-like appearance


28
Connective – Hyaline Cartilage
29
"Specific Muscle Tissue Types:"
  • Specific Muscle Tissue Types:
    •  muscle (skeletal)




30
Muscle - Skeletal
  • Muscle fibers (cells) long, parallel & cylindrical
  • With many nuclei (multinucleate)


31
Specific Nervous Tissue Types Nervous – Neuron