TISSUES NOTES PART 1 Learning Objectives Identify the

TISSUES NOTES PART 1

Learning Objectives Identify the four major tissue types and describe their functions. Describe the relationship between form and function for each tissue type. Describe three types of muscle tissue and the structural features of each. Discuss the basic structure and role of neural tissue.

NOTES - TISSUES • The human body is organized in the following manner: ATOMS MOLECULES CELLS TISSUES ORGAN SYSTEMS ORGANISM (human)

• TISSUE (definition) • 4 types of human tissue: • similar cells with the same function I. EPITHELIAL TISSUE II. CONNECTIVE TISSUE • Histology = study of tissues III. MUSCLE TISSUE IV. NERVOUS TISSUE Ed Copies Mrs. Notes

Epithelial General Characteristics: -Main glandular tissue (glands) Cells reproduce rapidly Cells tightly packed together Attached to underlying connective tissue by noncellular nonliving basement membrane

I. EPITHELIAL TISSUE • Function: • cover or lining of organs

Function Continued 1. protection 2. Secretion 3. Absorption 4. Excretion 5. Sensory Perception

http: //www. bing. com/videos/search? q=epith elia+tissues&FORM=HDRSC 3%20%20 view=detail&mid=1 B 5 CA 938 D 182 BBC 2 A 8 A 1#view=detail& mid=782 D 40 A 6889 DA 04169 A 7782 D 40 A 6889 DA 04169 A 7

Simple Squamous Location: heart and blood vessels, exchange surfaces of lungs Function: reduces friction, controls vessel permeability

Simple Cuboidal Function: limited protection, performs absorption and secretion Location: glands, ducts, kidney tubules

Simple Columnar Epithelium • long rectangles packed close together Function: • to secrete chemicals & absorb nutrients Location: • lining of digestive tract (stomach, intestines)

Stratified Squamous Epithelium • Function: • protection from injury • cells on the bottom are round – they become flat near the top • Location: • skin

3. Ciliated Epithelium • (aka: psuedostratified) Function: Location: * there are other types of epithelium as well • • similar to columnar epithelium, but with CILIA movement of mucus or egg by action of cilia, nasal cavity, trachea and bronchi oviducts (fallopian tubes)

Tracheal epithelium (ciliated)

Transitional Epithelium Location: urinary bladder Function: permit expansion and recoil after stretching

Figure 4. 4 Epithelium Transitional Figure 4. 4 c

TISSUES NOTES PART 2

Part 2: Connective Tissue General Characteristics: -Most abundant tissue in your body, found throughout -Binds structures together -Provides support, protection, framework, fills space, stores fat, produces blood cells, fights infection, and helps repair tissue.

4 common Types of Cells 1. mast cells (prevents blood clots) 2. macrophages (phagocytic ) Big Eater 3. fibroblasts (most abundant, produce fibers) 4. Fat Cells (adipose cells)

Loose Connective Areolar: binds skin to underlying organs and organs to organs, space between muscles, throughout body

Loose Connective ADIPOSE TISSUE - aka FAT, beneath skin, around kidneys and eyeballs, abdominal membranes. Function: Protective cushion, insulation to preserve body heat, stores energy, cells are called adipocytes

Dense Connective Tissues dense tissue, closely packed, thick collagenous fibers and fine network of elastic fibers. Few cells, poor blood supply, thus slow healing. Example?

Tendon = Ligament =

Fluid Types 1. Blood 2. Lymph

Blood Break

Supporting 1. Bone 2. Cartilage

Function of Bone and Cartilage and bone support the rest of the body

Cartilage Types: 1. Hyaline: most common 2. Elastic: external ear, epiglottis 3. Fibrocartilage: vertebrae of spinal column, pubic bones of pelvis

Elastic

Fibrocartilage

Bone Difference Between Bone and Cartilage pg. 108

Osteoclasts: Tear Down Osteoblasts: Build UP B and B

Osteoclasts/Osteoblasts https: //www. youtube. com/watch? v=78 RBp. W SOl 08

Stand up!

How to prevent osteoporosis?

Muscle Tissue 1. Skeletal 2. Cardiac 3. Smooth https: //www. youtube. com/watch? v=zir. Vmm. HQl. Q https: //www. youtube. com/watch? v=bw. OE 1 MEgin. A 3 Types of Muscle Cells WS

Nerual Tissue NEURAL TISSUE IS SPECIALIZED TO CONDUCT ELECTRICAL IMPULSES THAT CONVERY INFORMATION FROM ONE AREA OF THE BODY TO ANOTHER tps: //www. youtube. com/watch? v=6 q. S 83 w. D 2 9 PY Popcorn pg. 113

Neural Tissue Neurons - transmit signals Neuroglia - protection, support (supporting cells)

STROOP

______: Spinal Cord Importance of Cerebrospinal Fluid Circle and transmit signals

1. stand up 2. Sit down What messages were sent?

Labeling a neuron Clay

3 Main Parts