Science Study Guide: The Human Body



[pic] [pic] [pic]

Science Study Guide: The Human Body

Test: Thursday October 28th

Skeletal System:

Gives our body shape, our whole system of bones

• Protection Bones: Bones that guard other body parts

o Examples: Ribs, Skull, Pelvis

• Movement and Support Bones: Bones that help us walk, touch, turn and stand

o Examples: Femur, Humorous, Tibia, Fibula, Radius, Ulna

Bones:

A hard material that is made of mostly calcium that makes up the skeleton. There are 206 of these in the human skeleton.

• Skull: Protects your brain

• Femur: The longest bone in your body. It is between the knee and the hip. It attaches to the hip with a ball-and-socket joint.

• Ulna: One of two bones that make up our lower arm (between elbows and wrist)

• Radius: One of two bones that make up our lower arm (between elbows and wrist)

• Humorous: Upper arm bone, between shoulder and elbow. Connects to the shoulder with a ball-and-socket joint.

• Ribs: Group of bones that surround and protect the heart and lungs.

• Pelvis: bucket shaped bone that helps to hold our organs in, and allows up to stand up. Connects to the femurs with ball-and-socket joints.

• Spine: A group of bones that allow us to stand straight and tall

Joints:

The place where two bones come together

• Hinge: Moves like a gate or door hinge. Moves back and forth only

o Examples: Elbow, Finger Knuckles, Knee

• Ball-and-socket: Moves 3 ways- up and down, front to back, and can rotate

o Examples: Hips, Shoulders

• Gliding: Allow movement in two directions but do not rotate.

o Examples: Base of the finger (Oh no you didn’t!), Wrist, Ankles

Muscular System:

• Contract: To get smaller

• Fulcrum: The pivot point on which a lever moves

• Tendons: Muscles attach to bones with strong ropelike tissue

Coordination:

When parts of the body work together to complete a task

• Stimulus: Something that happens and starts a response.

• Response: Reaction to something that happened.

• Fulcrum: a place that a lever is attached and is able to turn

• Lever: a bar or rod attached to a fulcrum to turn

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download