Return to your lab groups from last class period.

When you are done writing your “Antiseptic Comparison Lab” conclusion, write down the organization (from cell to organism) as best you can. Use Chapter 5 to help you!

Welcome!

Cells: The smallest unit of life

Two Types of Cells:

1.1. ProkaryoticProkaryotic:

Cells that do not have a nucleus or organelles

2.2. EukaryoticEukaryotic:

Cells that contain a nucleus and membrane-bound organelles

Two examples: Two examples:

Plant and Animal cellsPlant and Animal cells

Specialized Cells

Cell Differentiation takes place soon after fertilization.

Tissues: A collection of cells that perform a specific function

Four Types of Tissues:

1.1. ConnectiveConnectivea)a) Structure: Has an extensive Structure: Has an extensive extracellularextracellular matrix matrix

b)b) Function: To support, bind, and Function: To support, bind, and protect organsprotect organs

c)c) Examples: Bone, blood, Examples: Bone, blood, cartilage, collagen, adipose (fat)cartilage, collagen, adipose (fat)

Tissues: A collection of cells that perform a specific function

Four Types of Tissues:

2.2. EpithelialEpitheliala)a) Structure: Tightly packed cellsStructure: Tightly packed cells

b)b) Function: To cover all of the linings of Function: To cover all of the linings of the bodythe body

c)c) Examples: Skin cells, lining of internal Examples: Skin cells, lining of internal organsorgans

Tissues: A collection of cells that perform a specific function

Four Types of Tissues:

3.3. NervousNervousa)a) Structure: Long and slender neurons Structure: Long and slender neurons

(specialized cells)(specialized cells)

b)b) Function: Coordinates the movements Function: Coordinates the movements of muscles; Senses things; initiates of muscles; Senses things; initiates actionsactions

c)c) Examples: NeuronsExamples: Neurons

Tissues: A collection of cells that perform a specific function

Four Types of Tissues:4.4. MuscularMusculara)a) Structure: Two types: Striated and Structure: Two types: Striated and

Smooth Smooth b)b) Function: To produce force and cause Function: To produce force and cause

motionmotionc)c) Examples: Cardiac, Skeletal and Examples: Cardiac, Skeletal and

Smooth Muscle (lining the digestive Smooth Muscle (lining the digestive system)system)

Organs: A group of tissues which perform some function

What are some major organs that you can think of?

Brain, lungs, heart, kidneys, eye, stomach, spleen, pancreas, liver, intestines, skin, uterus, bladder…

What types of tissues do you think go into making these organs?

Organ Systems: A group of organs and their associated tissues

• In your notes, start a table with three columns, with the titles:

• Organ SystemOrgan System

• Main ComponentsMain Components

• Main Functions

Digestive SystemDigestive System

• Main Components: Mouth, pharynx, Main Components: Mouth, pharynx, esophagus, stomach, intestines, liver, esophagus, stomach, intestines, liver, pancreas and anuspancreas and anus

• Main Functions: Food processing (ingestion, digestion, absorption and elimination)

Circulatory SystemCirculatory System

• Main Components: Heart, blood vessels, Main Components: Heart, blood vessels, bloodblood

• Main Functions: Internal Distribution of materials

Respiratory SystemRespiratory System

• Main Components: Lungs, trachea, other Main Components: Lungs, trachea, other breathing tubesbreathing tubes

• Main Functions: Gas exchange (input of Oxygen and output of Carbon Dioxide)

Immune and Lymphatic SystemImmune and Lymphatic System

• Main Components: Bone marrow, Lymph Main Components: Bone marrow, Lymph nodes, thymus, spleen, lymph vessels, nodes, thymus, spleen, lymph vessels, white blood cellswhite blood cells

• Main Functions: Body defense (fighting infections and cancer)

Excretory SystemExcretory System

• Main Components: Kidneys, ureters, Main Components: Kidneys, ureters, urinary bladder, urethraurinary bladder, urethra

• Main Functions: Disposal of metabolic waste; Maintaining the osmotic regularity of blood

Endocrine SystemEndocrine System

• Main Components: Pituitary, thyroid, Main Components: Pituitary, thyroid, pancreas, other hormone secreting glandspancreas, other hormone secreting glands

• Main Functions: Coordination of body activities (i.e., digestion and metabolism)

Reproductive SystemReproductive System

• Main Components: Ovaries, testes and Main Components: Ovaries, testes and associated organsassociated organs

• Main Functions: Reproduction

Integumentary SystemIntegumentary System

• Main Components: Skin and its Main Components: Skin and its derivatives (i.e., hair, claws, skin glands)derivatives (i.e., hair, claws, skin glands)

• Main Functions: Protection against mechanical injury, infection and drying out

Skeletal SystemSkeletal System

• Main Components: Skeleton: Bones, Main Components: Skeleton: Bones, tendons, ligaments and cartilagetendons, ligaments and cartilage

• Main Functions: Body support and protection of internal organs

Muscular SystemMuscular System

• Main Components: Skeletal MusclesMain Components: Skeletal Muscles

• Main Functions: Movement and locomotion

Nervous SystemNervous System

• Main Components: Brain, spinal cord, Main Components: Brain, spinal cord, nerves and sensory organsnerves and sensory organs

• Main Functions: Coordination of body activities, detection of stimuli and formation of responses to them

Organ System Activity

• In groups, you will be assigned an organ system to draw on the model provided.

• Each of you will have a role:– Researcher– Recorder– Artist/Decorator

• You will be graded as a group and as an individual.

Organ System Activity

• You must draw and label the major organs of the system.

• You must list the major functions of the system.