Becoming You
Growing Up Physically
From Cells to Systems
Your Body Regulators
In Your Body
100

Before you were born, this served as your lungs, kidneys, and intestines.

Placenta

100

Movements that are learned are called this.

Motor Skills
100

This is the basic unit of the human body.

Cell

100

The production and distribution of hormones is the function of this system.

Endocrine system

100

Groups of similar cells are called what?

Tissue

200

This carried oxygen and nutrients from your mother's blood to your developing body.

Umbilical Cord

200

By your first birthday, you should weigh about this many pounds.

20-24 pounds

200

The outer layer of the cell is known as what?

The cell membrane

200

Your most important endocrine gland is known as this.

Pituitary Gland

200

Similar tissues make up these?

Organs

300

At 4 weeks in the womb, you have no bones, but this was starting to bulge where your arms and legs would form.

Cartilage

300

When you lost your 1st tooth or started kindergarten, these are known as.

Milestones

300

This is the thick fluid inside a cell.

Cytoplasm

300

This gland effects your growth.

Thryoid gland

300

Groups of organs with similar functions make up what?

Systems

400

From 13 to 16 weeks in the womb, this started to grow.

Hair

400
Girls usually begin their growth spurts around what age?

11 or 12

400

The control center of the cell is known as what.

Nucleus

400

The process which converts food to energy to help you work and play is called what.

Metabolism

400

These cells are located in the pancreas.

Islets of Langerhans.

500

Most babies are born after how many months in the womb?

9 months

500

Boys normally have their growth at these ages.

13 or 14.

500

These little laborers in the cell perform many chemical reactions and functions.

Organelles

500

This small cone-shaped endocrine gland is located between the two hemispheres of the brain.

Pineal gland

500

The pancreas secretes these two hormones which help maintain the proper level of glucose in the blood.

Insulin and glucagon