Biology Week 17Biology Week 17 8.2-3 Pg. 2118.2-3 Pg. 211

Control of the Cell Cycle , Cancer Control of the Cell Cycle , Cancer and Body Systems and Body Systems

Groups of cells that work togetherGroups of cells that work together

tissuestissues

4 main types of tissues4 main types of tissues

1) epithelial 2) 1) epithelial 2) connective, 3) muscle, connective, 3) muscle, 4) nervous. 4) nervous.

Consider these basic types as the "lego building Consider these basic types as the "lego building blocks" of the human bodyblocks" of the human body

1) epithelial tissue

2) Connective 2) Connective tissuetissue bindbind structures together, structures together,

form a frameworkform a framework and and support for organs and support for organs and the body as a whole,the body as a whole,

store fatstore fat, , transporttransport substances, substances, protectprotect against disease, against disease,

and and help help repairrepair tissue tissue

damage. damage. They occur They occur throughoutthroughout the the

body. body. These tissue cells are able These tissue cells are able

to reproduce but to reproduce but not as not as rapidlyrapidly as epithelial as epithelial cells. cells.

Includes blood, Includes blood, cartilagecartilage, , and and bonebone..

3) Muscle 3) Muscle tissuetissue

composed of cells that have the composed of cells that have the special ability to shorten or special ability to shorten or contractcontract in order to produce in order to produce movement of the body parts. movement of the body parts.

The tissue is highly cellular and The tissue is highly cellular and is is well supplied with blood well supplied with blood vessels.vessels.

The cells are The cells are long and slenderlong and slender so so they are sometimes called they are sometimes called fibersfibers, , and these are usually and these are usually arranged in arranged in bundles or layers that are bundles or layers that are

surrounded by connective tissuesurrounded by connective tissue..

4) nervous 4) nervous tissuetissue

found in the found in the brain, spinal brain, spinal cord, and nerves. cord, and nerves.

It is responsible for It is responsible for coordinating and controllingcoordinating and controlling many body activities. many body activities.

It It stimulatesstimulates muscle muscle contraction, contraction,

creates an creates an awarenessawareness of the of the environment, and environment, and

plays a major role in plays a major role in emotions, memory, and emotions, memory, and reasoningreasoning. .

To do all these things, the cells To do all these things, the cells in the tissue need to be able in the tissue need to be able to communicate with each to communicate with each other by way of other by way of electrical electrical nerve impulses. nerve impulses.

organorgan

Tissues organized in various combinationsTissues organized in various combinations

organ systemorgan system

Multiple Multiple organs that organs that work work togethertogether

WebpageWebpage

cyclinscyclins

Proteins that control the cell cycleProteins that control the cell cycle

cancercancer videovideo

A malignant growth resulting from A malignant growth resulting from uncontrolled cell divisionuncontrolled cell division

malignantmalignant

(from the Latin roots (from the Latin roots mal-mal- = "bad" and = "bad" and --genusgenus = "born") is a = "born") is a medical term used to medical term used to describe a describe a severe and severe and progressively progressively worsening diseaseworsening disease. . The term is most The term is most familiar as a familiar as a description of description of cancercancer..

genegene A segment of A segment of

DNA that DNA that controls the controls the production of a production of a proteinprotein

metastasismetastasis

When cancer cells When cancer cells enter the enter the circulatory system circulatory system and spread and spread throughout the throughout the bodybody

DissectionDissection

To cut apart or To cut apart or separate separate (tissue), (tissue), especially for especially for anatomical anatomical study.study.

SafetySafety start on pg start on pg 99

AnimalsAnimals

Heart Heart VIDEOVIDEO

Keeps blood moving constantly Keeps blood moving constantly throughout the body, made of throughout the body, made of cardiac muscle cells rich in cardiac muscle cells rich in mitochondriamitochondria

The The cardiac cycle cardiac cycle is the is the sequence of events that occur sequence of events that occur when the heart beats. There when the heart beats. There are two phases of this cycle: are two phases of this cycle:

DiastoleDiastole - Ventricles are - Ventricles are relaxedrelaxed. .

SystoleSystole - Ventricles - Ventricles contractcontract..

Red blood cellsRed blood cells Carry oxygen to the Carry oxygen to the

body cells, made in red body cells, made in red bone marrow, 44% of bone marrow, 44% of blood volume blood volume

play a major role in protecting your body from foreign play a major role in protecting your body from foreign substances and microscopic organisms that may cause substances and microscopic organisms that may cause disease, 1% of total blood volumedisease, 1% of total blood volume

White blood cellsWhite blood cells

muscles muscles

Half of our body mass, Half of our body mass, groups of fibers (cells) groups of fibers (cells)

bound together, bound together, 3 types – 3 types – smooth (involuntary), smooth (involuntary), cardiac, and cardiac, and skeletal (voluntary)skeletal (voluntary)

See a kneeSee a kneeGetting big musclesGetting big muscles

contractioncontraction

To become shorter, how To become shorter, how muscles cause muscles cause movementmovement

Learning activityLearning activity VideoVideo animationanimation

liverliver

Large complex organ that Large complex organ that produces bile (stored in gall produces bile (stored in gall bladder) bladder)

plays a major role in plays a major role in metabolismmetabolism, , glycogenglycogen storage, decomposition of storage, decomposition of red blood cells, red blood cells, plasma proteinplasma protein synthesis, and synthesis, and detoxification.detoxification.

The largest The largest glandgland in the in the human bodyhuman body..

detoxifydetoxify.. To remove poisonous To remove poisonous

substances or organisms capable substances or organisms capable of causing disease when of causing disease when introduced into the bodyintroduced into the body

How Does It Work? Basically, cleaning the blood. It does this mainly by removing impurities from the blood in the liver, where toxins are processed for elimination. The body also eliminates toxins through the kidneys, intestines, lungs, lymph and skin. However, when this system is compromised, impurities aren't properly filtered and every cell in the body is adversely affected.

A program can help the body's natural cleaning process by: 1) Resting the organs through fasting; 2) Stimulating the liver to drive toxins from the body; 3) Promoting elimination through the intestines, kidneys and skin; 4) Improving circulation of the blood; and 5) Refueling the body with healthy nutrients.

"Detoxification works because it addresses the needs of individual cells, the smallest units of life,"

poisonpoison

A substance that causes injury, A substance that causes injury, illness, or death, especially by illness, or death, especially by chemical meanschemical means

Poison-arrow frog

Poison ivy

Poison liquid

Poison gas