Presentation is loading. Please wait.

Presentation is loading. Please wait.

A group of cells that have a specific function.

Published byNathaniel Beasley Modified over 6 years ago

Similar presentations

Presentation on theme: "A group of cells that have a specific function."— Presentation transcript:

1 A group of cells that have a specific function.
Tissues A group of cells that have a specific function.

2 General Functions

3 Epithelial Tissue Cover body surfaces and organs Lines body cavities

4 Connective Tissue Bind and support body parts

5 Muscular Tissue Contracts to aid in movement

6 Nervous Tissue Responds to stimuli
Transmits impulses from one body part to another

7 Epithelial Tissue

8 Epithelial Tissue Tightly packed Little space between layers

9 External Protection Dehydration Injury Bacterial Infections

10 Internal Protection Secretes mucus (digestive) Absorption (renal)
Cilia (respiratory)

11 Epithelial tissue Lacks blood vessels
Receive nutrients from underlying connective tissue Always has one FREE SURFACE Basement membrane is attached to surface

12 Epithelial tissue Classified by: Cell shape # of layers

13 SimpleSquamous Epithelium
Single layer Flattened cells Secretion Absorption Filtration

14 SimpleSquamous Epithelium
Lines the lungs and capillaries

15 SimpleSquamous Epithelium

16 StratifiedSquamous Epithelium
Many layers Flattened cells Protection Deeper layers may be columnar or cuboidal Basal layer reinforced by keratin, a protein that provides strength

17 StratifiedSquamous Epithelium
Skin Various orifices

18 StratifiedSquamous Epithelium

19 SimpleCuboidal Epithelium
Single layer Cube-shaped Glands Main function is secretion and absorption Contains many mitochondria that supplies ATP

20 SimpleCuboidal Epithelium
Salivary Gland Thyroid Gland Pancreas Kidney tubule Ovaries

21 SimpleCuboidal Epithelium

22 StratifiedCuboidal Epithelium
Often only has two layers Found in lining of larger ducts Mammary Salivary

23 StratifiedCuboidal Epithelium

24 SimpleColumnar Epithelium
Longer than they are wide Perform a particular function Main function of absorption and propulsion

25 SimpleColumnar Epithelium
Found in lining of digestive organs Lines the fallopian tubes

26 SimpleColumnar Epithelium

27 StratifiedColumnar Epithelium
Rare Found in male urethra and pharynx

28 StratifiedColumnar Epithelium

29 Pseudostratified Columnar Epithelium
Appears to be layered but no true layers Irregular placement of nuclei

30 Pseudostratified Columnar Epithelium

31 Transitional Epithelium
Changeability Respond to tension Lines bladder

32 Transitional Epithelium

33 Connective Tissue Supports and protects Fills space
Produces blood cells Stores fat

34 Connective Tissue Widely separated by extracellular matrix composed of organic ground substance Varies in consistency

35 Connective Tissue Classified by characteristics of matrix

36 Connective Tissue Fibers in matrix
Collagen (white fiber) flexibility and strength Elastin (yellow fiber) more flexible but not as strong Reticular (very thin networking)

37 Fibrous Connective Tissue
Loose connective tissue Between other tissues Between organs Binds together

38 Fibrous Connective Tissue
Loose connective tissue Mainly fibroblasts (large star-shaped) Located far apart, separated by jelly-like matrix Adipose

39 Fibrous Connective Tissue

40 Fibrous Connective Tissue
Dense connective tissue Bundles are parallel Tendons Ligaments

41 Fibrous Connective Tissue

42 Fibrous Connective Tissue
Lymphatic tissue Contains reticular fibers only Found in spleen, lymph nodes, thymus, and bone marrow

43 Connective Tissue: Cartilage
Lacunae- small chambers separated by matrix that is flexible solid No direct blood flow

44 Connective Tissue: Cartilage
Hyaline: Most common Matrix- fine collagen Nose, end of ribs, trachea, and fetal skeleton

45 Connective Tissue: Cartilage
Hyaline:

46 Connective Tissue: Cartilage
Elastic: Elastin and collagen fibers More flexible Outer ear

47 Connective Tissue: Cartilage
Elastic:

48 Connective Tissue: Cartilage
Fibrocartilage: Strong collagen matrix Absorbs shock Reduces friction Vertebrae and knee joint

49 Connective Tissue: Cartilage
Fibrocartilage:

50 Connective Tissue: Bone
Most rigid connective tissue Mineral salts Calcium

51 Connective Tissue: Bone
Compact bone Outer portion of long bones Osteons (cylindrical shaped) Lamellae (deposition of thin layers) around a central canal Canal contains nerves and blood vessels

52 Connective Tissue: Bone
Compact bone Osteocytes (bone cells) Canaliculi (minute canals)

53 Connective Tissue: Bone
Compact bone

54 Connective Tissue: Bone
Spongy bone Contains numerous bony bars and plates called TRABECULAE Lighter than compact bones Contains red marrow

55 Connective Tissue: Bone
Spongy bone

56 Connective Tissue: Blood
Cells suspended in a liquid matrix called PLASMA Red blood cells- carry oxygen (erythrocytes) White blood cells- aid in fighting infection (leukocytes)

57 Muscular Tissue Composed of muscle fibers Contain actin and myosin

58 Connective Tissue: Blood
Platelets- fragments of giant cells found in the matrix

59 Muscular Tissue Skeletal Voluntary Attached by tendons
Contraction = movement Short duration Striated

60 Muscular Tissue Skeletal

61 Muscular Tissue Smooth Not voluntary
Found in the walls of hollow viscera Long duration Modified by the nervous system

62 Muscular Tissue Smooth

63 Muscular Tissue Cardiac Features of both smooth and skeletal muscles
Strong Rhythmical Striated Single central nucleus

64 Muscular Tissue Cardiac Individual Bound at intercalated disks
Promotes rapid stimuli for simultaneous contractions

65 Muscular Tissue Cardiac

66 Nervous Tissue Brain and spinal cord Neurons conduct stimuli
Dendrite collects signals that result in impulses Cell body contains the nucleus and cytoplasm Axon conducts nerve impulses

67 Nervous Tissue Neuroglia- support and nourish neurons
Schwann cells- type of neuroglia that encircles long nerve fibers outside the CNS

68 Nervous Tissue Nodes of Ranvier- gaps between the Schwann cells
Myelin sheath- speeds conduction, jumps from node to node

69 Extracellular Junctions
Tight junction: impermeable barrier Gastric juices and urine Gap junction: adjacent membrane channels join Heart

70 Extracellular Junctions
Adhesion : Do not touch Held together by extracellular filaments

71 Glands One or more cells that produce and secrete a product

72 Glands Exocrine Glands with ducts Secrete to outer surfaces
Sweat and mammary glands

73 Glands Endocrine Glands without ducts
Secrete internally, transported by blood stream Hormones that promote homeostasis Pituitary and thyroid

74 Membranes Mucous Interior walls of organs and tubes that open to outside Goblet cells secrete mucus Digestive, respiratory, urinary, and reproductive

75 Membranes Serous Line cavities and cover organs Visceral: near organ
Parietal: wall of cavity Secrete watery fluid for lubrication

76 Membranes Serous Abdominopelvic Thoracic
Pleura: double layer around lungs Pericardium: covering around heart

77 Membranes Serous Peritoneum: membrane around abdomen
Mesentery: peritoneal membrane attaches abdominal wall to organ

78 Membranes Synovial Lines free moving joint cavities
Rheumatoid arthritis- inflammation of synovial fluid

79 Membranes Meninges Membranes within the posterior cavity
Protect brain and spinal cord Meningitis: infection of meninges

80 Membranes Cutaneous Skin Outer covering

Download ppt "A group of cells that have a specific function."

Similar presentations

Tissues Chapter 5.

Tissues Chapter 5.
Cells and Tissues.

Cells and Tissues.
Chapter 5 Tissues. Intercellular Connections Individual cells connect to form tissues 3 ways: –Tight junctions- prevents permeability of ions through.

Chapter 5 Tissues. Intercellular Connections Individual cells connect to form tissues 3 ways: –Tight junctions- prevents permeability of ions through.
CONNECTIVE TISSUE. Connective Tissue Functions to bind, support, insulate and protect parts of the body. 3 Components: Specialized cells, ground substance.

CONNECTIVE TISSUE. Connective Tissue Functions to bind, support, insulate and protect parts of the body. 3 Components: Specialized cells, ground substance.
 “Epi”= upon  “Pseudo”= false  “Squam” = scale  “Strat”= layer  Simple- one layer  Stratified- multiple layers  Cuboidal- cube shaped  Columnar-

 “Epi”= upon  “Pseudo”= false  “Squam” = scale  “Strat”= layer  Simple- one layer  Stratified- multiple layers  Cuboidal- cube shaped  Columnar-
Tissues. A. Tissues 1. Def – a group of cells that are organized into groups and layers. 2. Types (Table 5.1) a. Epithelial b. Connective c. Muscular.

Tissues. A. Tissues 1. Def – a group of cells that are organized into groups and layers. 2. Types (Table 5.1) a. Epithelial b. Connective c. Muscular.
Histology The study of tissues.

Histology The study of tissues.
Tissue. Groups of cells similar in structure and function.

Tissue. Groups of cells similar in structure and function.
Chapter 5 Tissues. Intercellular Connections Individual cells connect to form tissues 3 ways: –Tight junctions- –Desmosome- adhesion between cells in.

Chapter 5 Tissues. Intercellular Connections Individual cells connect to form tissues 3 ways: –Tight junctions- –Desmosome- adhesion between cells in.
Cells and Tissues Cells - building blocks of all life

Cells and Tissues Cells - building blocks of all life
Body Tissues and Membranes Chapter 4. Lesson 1 Body Tissues.

Body Tissues and Membranes Chapter 4. Lesson 1 Body Tissues.
Body Tissues and Membranes Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Lecture Outline.

Body Tissues and Membranes Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Lecture Outline.
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Objective 1 Describe the four main categories of tissue, including their types,

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Objective 1 Describe the four main categories of tissue, including their types,
Cells combine to form tissues, and tissues combine to form organs Tissues are groups of cells closely associated that have a similar structure & perform.

Cells combine to form tissues, and tissues combine to form organs Tissues are groups of cells closely associated that have a similar structure & perform.
Copyright © 2006 Pearson Education, Inc. publishing as Benjamin Cummings. Tissues  Groups of cells with a common structure and function  Four primary.

Copyright © 2006 Pearson Education, Inc. publishing as Benjamin Cummings. Tissues  Groups of cells with a common structure and function  Four primary.
Chapter 3 Body Tissues He he he he he….

Chapter 3 Body Tissues He he he he he….
Tissues. Tissue – a group or mass of similar cells working together to perform certain common functions There are 4 major types of tissue  Epithelial.

Tissues. Tissue – a group or mass of similar cells working together to perform certain common functions There are 4 major types of tissue  Epithelial.
Organization of Human Body. CELL Coined by Robert Hooke (1665) It is the structural and functional unit of life Shape and size varies to suit their function.

Organization of Human Body. CELL Coined by Robert Hooke (1665) It is the structural and functional unit of life Shape and size varies to suit their function.
Epithelial Tissues. Simple Squamosal epithelium Single layer of thin flattened cells Allow substances to pass through easily. Found lining the lungs,

Epithelial Tissues. Simple Squamosal epithelium Single layer of thin flattened cells Allow substances to pass through easily. Found lining the lungs,
Chapter 5 Tissues. Tissues Cells are arranged in tissues that provide specific functions for the body Cells of different tissues are structured differently,

Chapter 5 Tissues. Tissues Cells are arranged in tissues that provide specific functions for the body Cells of different tissues are structured differently,

Similar presentations

Ads by Google