1. Chapter 5 Tissues

2. Two or more cell types combined 4 major tissue types Epithelial Connective Muscle Nervous

3. Epithelial Tissues General Characteristics Widespread Covers Organs Lines body surfaces Lack blood vessels Have a basement membrane

4. Epithelial Tissues Basement membrane Non-living layer that connects epithelial tissues to connective tissues SSS rug

5. Epithelial Tissues Functions Protection Secretion Absorption Excretion Sensory Reception

6. Epithelial Tissues Simple Squamous Epithelium Single layer Thin flat cells Functions gas exchange

7. Epithelial Tissues Simple Squamous Epithelium Location Lining of blood vessels Air sacs (alveoli) of the lungs

8. Epithelial Tissues Simple Cuboidal Epithelium Cube shaped cells Centrally located nuclei Functions Secretion Absorption

9. Epithelial Tissues Simple Cuboidal Epithelium Location Kidney tubules

10. Epithelial Tissues Simple Columnar Epithelium Elongated cells Nuclei near basement membrane Have goblet cells Secrete mucus

11. Epithelial Tissues Simple Columnar Epithelium Functions Protection Secretion Absorption

12. Epithelial Tissues Simple Columnar Epithelium Locations Small intestine Stomach Uterus

14. Epithelial Tissues Pseudostratified Ciliated Columnar Epithelium (PCCE) Falsely Layered Varying level of nuclei Cilia Goblet cells

15. Epithelial Tissues Functions Move material Locations Respiratory tract (trachea) Uterine tubes

16. Epithelial Tissues Stratified Squamous Epithelium Layered Flattened cells Functions Protection

18. Epithelial Tissues Stratified Squamous Epithelium Locations Outer layer of skin Mouth, Throat Vagina Anal Canal

19. Epithelial Tissues Transitional Epithelium Cell shapes a merry mish mosh Function Distensibility Location Urinary bladder

21. Epithelial Tissues Glandular Epithelium Epithelium found in glands Two Major Gland types Endocrine Exocrine

22. Exocrine Glands Three types Merocrine Release watery protein-rich fluid by exocytosis Serous Mucous

24. Exocrine Glands Apocrine Loose small parts of the cell bodies during secretion Mammary glands

26. Exocrine Glands Holocrine Glands Release entire cell during secretion Sebaceous glands

28. Connective Tissue General Characteristics Bind Support Protect Store Fat Serve as frameworks Produce blood cells Protect against infection

29. Connective Tissue Major Cell Types Fibroblast Builds fibers Macrophage Does Phagocytosis

30. Connective Tissue Mast Release heparin and histamine

31. Connective Tissue Major Fiber Types Collagenous Made of collagen Strong to hold parts together

32. Connective Tissue Elastic Made of elastin Stretchy for flexability Reticular Fibers Form networks to support tissues

33. Connective Tissue Loose Connective Tissue “God’s Superglue” Binds skin to underlying tissue Holds muscles together

35. Connective Tissue Adipose Tissue Specialized Loose CT Designed to store fat Located under skin, joints, pads kidneys Insulation and protection

37. Connective Tissue Dense Connective Tissue Collagen fibers Very Strong Found in tendons and ligaments

39. Connective Tissue Cartilage Rigid and provides framework Lacks a direct blood supply so heals poorly Chondrocytes

40. Connective Tissue Cartilage Three types Hyaline Most common Found at ends of bones Respiratory tract

42. Connective Tissue Elastic Cartilage Elastic fibers Outer ear Larynx

44. Connective Tissue Fibrocartilage Shock absorber Meniscus of knee Intervertebral disks

46. Connective Tissue Bone Most rigid Osteocytes in lacunae Concentric circles - osteons Osteonic Canals Good blood supply

48. Connective Tissue Blood Erythrocyte - RBC Leukocytes - WBC Platelets - fragments Plasma

50. Muscle Tissue Three Types Skeletal Attached to skeletal bones Voluntary Multinucleated Striated

51. Muscle Tissue Smooth Lacks Striations Involuntary Found in hollow organs

52. Muscle Tissue Cardiac Striated Self-exciting Involuntary Only in the heart

54. Nervous Tissue Found in the Brain, Spinal Cord, and Nerves Carries Impulses Neurons

56. Nervous Tissue Neuroglial Cells Connective tissue of nervous system Do not conduct impulses