Integumentary & Digestive
Muscular & Skeletal
Circulatory & Immune
Respiratory & Excretory
Reproductive & Fetal Development
Endocrine & Nervous
100

Hair and nails are made of the protein:

A. Collagen

B. Keratin

C. Calcium

D. Melanin

B. Keratin

100

Muscles provide the force to _____ your body.

A. Protect

B. Move

C. Feed

D. Repair

B. Move

100

The circulatory system carries oxygen and _____ to cells.

A. Nutrients

B. Hormones

C. Water

D. Waste

A. Nutrients

100

The respiratory system _____ oxygen to the body.

A. Stores

B. Removes

C. Supplies

D. Produces

C. Supplies

100

The fertilized egg is called a:

A. Embryo

B. Fetus

C. Zygote

D. Placenta

C. Zygote

100

The endocrine system is a collection of:

A. Bones

B. Muscles

C. Glands

D. Nerves

C. Glands

200

The digestive system breaks down food into molecules the body can use as:

A. Waste

B. Energy

C. Water

D. Oxygen

B. Energy

200

Bone is a type of connective:

A. Organ

B. Tissue

C. Cell

D. Muscle

B. Tissue

200

Another name for the immune system is the:

A. Endocrine system

B. Nervous system

C. Lymphatic system

D. Digestive system

C. Lymphatic system

200

The kidneys _____ blood of waste.

A. Pump

B. Warm

C. Filter

D. Produce

C. Filter

200

Sexual reproduction increases genetic:

A. Strength

B. Diversity

C. Mutation

D. Stability

B. Diversity

200

The nervous system is made up of the brain, spinal cord, and:

A. Muscles

B. Bones

C. Nerves

D. Glands

C. Nerves

300

Skin is the largest _____ of the body.

A. Tissue

B. Cell

C. Organ

D. Bone

C. Organ

300

Cardiac muscle is found only in the:

A. Lungs

B. Brain

C. Heart

D. Stomach

C. Heart

300

The heart contains _____ chambers.

A. Two

B. Three

C. Four

D. Five

C. Four

300

The larynx is also called the:

A. Windpipe

B. Voice box

C. Air sac

D. Bronchiole

B. Voice box

300

Ovulation occurs when a _____ egg is released from the ovary.

A. Fertilized

B. Mature

C. Growing

D. Tiny

B. Mature

300

Hormones are the body's chemical:

A. Nutrients

B. Reactions

C. Defenses

D. Messengers

D. Messengers

400

Chemical digestion uses

A. Stomach acid

B. Bile

C. Enzymes

D. All of these

D. All of these

400

Bones help _____ your internal organs.

A. Feed

B. Repair

C. Protect

D. Warm

C. Protect

400

Lymph contains water, glucose, and _____ blood cells.

A. Red

B. White

C. Stem

D. Platelet

B. White

400

Ureters are _____ that carry urine from the kidneys.

A. Muscles

B. Tubes

C. Glands

D. Valves

B. Tubes

400

When does the heart begin beating?

A. 1 month

B. 2 months

C. 3 months

D. 4 months

A. 1 month

400

The _____ is the control center of the body.

A. Heart

B. Brain

C. Skull

D. Spine

B. Brain

500

Perspiration helps maintain body temperature by keeping the body:

A. Warm

B. Dry

C. Flexible

D. Cool

D. Cool

500

Skeletal muscles are connected to bones by:

A. Ligaments

B. Cartilage

C. Tendons

D. Joints

C. Tendons

500

Arteries carry blood _____ from the heart.

A. Toward

B. Away

C. Around

D. Into

B. Away

500

Alveoli are tiny:

A. Nerves

B. Blood vessels

C. Air sacs

D. Muscles

C. Air sacs

500

When do the lungs begin to develop?

A. 1 month

B. 2 months

C. 3 months

D. 4 months

C. 3 months

500

The pituitary gland is known as the:

A. Growth gland

B. Control gland

C. Master gland

D. Thyroid gland

C. Master gland

600

Small projections that increase surface area in the small intestine are called:

A. Nephrons

B. Alveoli

C. Villi

D. Nodes

C. Villi

600

Blood cells are formed in red:

A. Cartilage

B. Tendons

C. Ligaments

D. Marrow

D. Marrow

600

Pathogens are microorganisms that can:

A. Cause disease

B. Produce hormones

C. Carry oxygen

D. Build tissue

A. Cause disease

600

The urinary bladder _____ urine until released.

A. Filters

B. Produces

C. Removes

D. Stores

D. Stores

600

Ideally, the fetus is positioned _____ _____ for labor and delivery.

A. face up

B. feet first

C. head down

D. side lying

C. head down

600

A reflex is an _____ response.

A. Delayed

B. Learned

C. Voluntary

D. Automatic

D. Automatic

1000

Bonus: Why does the human body have many different body systems instead of just one?

A. To make the body bigger

B. So different parts can do different jobs

C. To reduce the number of organs

D. To stop the body from working together

B. So different parts can do different jobs

1000

Bonus: How do body systems work together?

A. They work separately with no connection

B. They take turns working

C. They depend on each other to keep the body working

D. Only one system works at a time

C. They depend on each other to keep the body working

1000

Bonus: How do body systems help maintain homeostasis?

A. Each system works alone

B. Systems work together to keep the body balanced

C. Only the brain controls balance

D. The body does not need balance

B. Systems work together to keep the body balanced