Body SystemsBody Systems

88thth grade notes grade notes

NotesNotesA system is a A system is a group of parts that group of parts that work together as a work together as a unit to accomplish unit to accomplish a common goal.a common goal.

Cardiovascular SystemCardiovascular System

Delivers needed materials to the Delivers needed materials to the bodybody

Removes wastes from the bodyRemoves wastes from the body

Interacts with all body systemsInteracts with all body systems

Main PartsMain Parts:: Heart, arteries, veins, Heart, arteries, veins, capillaries, bloodcapillaries, blood

Digestive SystemDigestive SystemBreaks down food into simpler substances Breaks down food into simpler substances that the body can absorb and used by the that the body can absorb and used by the cells.cells.The small intestine contains villi that absorb The small intestine contains villi that absorb nutrients into the body.nutrients into the body.The muscular system helps the digestive The muscular system helps the digestive system by you chewing, swallowing, and system by you chewing, swallowing, and churning food in the stomach.churning food in the stomach.Main Parts:Main Parts: mouth, esophagus, stomach, mouth, esophagus, stomach, small Intestine, large intestine, liver, small Intestine, large intestine, liver, gallbladder, pancreas, rectum, and anus.gallbladder, pancreas, rectum, and anus.

MuscularMuscular

Muscles produce voluntary Muscles produce voluntary movement.movement.

Enables the whole body to moveEnables the whole body to move

Uses the skeletal and nervous Uses the skeletal and nervous systemssystems

Main Parts: Main Parts: smooth, cardiac, and smooth, cardiac, and skeletal musclesskeletal muscles

Respiratory SystemRespiratory SystemDelivers oxygen to your Delivers oxygen to your bodybody

Removes CORemoves CO22 from the from the bodybody

The cardiovascular The cardiovascular system and the system and the muscular system help muscular system help this system to workthis system to work

Main PartsMain Parts: pharynx, : pharynx, larynx, trachea, bronchi, larynx, trachea, bronchi, lungs, and diaphragmlungs, and diaphragm

Skeletal SystemSkeletal System

Supports and protects the bodySupports and protects the body

Works with the muscles to enable Works with the muscles to enable movementmovement

Main PartsMain Parts: Bones, Joints, Cartilage: Bones, Joints, Cartilage

Endocrine SystemEndocrine SystemProduces chemicals that are called Produces chemicals that are called hormones that help control body hormones that help control body processes.processes.

Main PartsMain Parts: Glands: Glands

Excretory SystemExcretory System

Removes wastesRemoves wastes

Helps to regulate the water in the Helps to regulate the water in the bodybody

Main PartsMain Parts: Kidneys, Bladder: Kidneys, Bladder

Nervous SystemNervous System

Obtains and processes information Obtains and processes information from the body’s internal and external from the body’s internal and external environment.environment.

Directs most body functions.Directs most body functions.

Main PartsMain Parts: brain, spinal cord, : brain, spinal cord, peripheral nerves, and nerves peripheral nerves, and nerves

CellsCells

What do you remember about What do you remember about cells from 6cells from 6thth grade? grade?

Activity 1Activity 1Sorting Systems-In this activity you Sorting Systems-In this activity you will find a body system at your lab will find a body system at your lab station.station.

Organize each system by cells, Organize each system by cells, tissue, organ, and organ systemtissue, organ, and organ system

Name the system that you organizedName the system that you organized

Have teacher check your team and if Have teacher check your team and if she okays it mix it up for the next she okays it mix it up for the next teamteam

Move to the next station when the Move to the next station when the teacher gives permissionteacher gives permission

Activity 2Activity 2

Objective: Systems work together to Objective: Systems work together to maintain homeostasis in the human maintain homeostasis in the human body.body.

DiscussionDiscussion

Describe a time when they were Describe a time when they were extremely cold or very warm. extremely cold or very warm.

How did your body react? How did your body react?

Begin Mini LabBegin Mini Lab