Vocabulary
Human Body Systems
Brain & Nervous System

Eye & Vision

Blood & Cardiovascular

Species ID
100

This is the study of life.

What is biology?

100

This system includes glands and hormones.

What is the endocrine system?

100

This part of the brain controls balance and coordination.

What is the cerebellum?

100

The colored part of the eye that controls pupil size.

What is the iris?

100

These blood cells carry oxygen using hemoglobin.

What are red blood cells?

100

The scientific name of the Valley Oak.

What is Quercus lobata?

200

This means "study of" and is often found at the end of scientific fields.

What is -ology?

200

The human skeleton protects organs and provides ____.

What is structure (or support)?

200

This connects the two brain hemispheres.

What is the corpus callosum?

200

This part of the eye contains photoreceptor cells (rods and cones).

What is the retina?

200

These vessels carry blood away from the heart.

What are arteries?

200

This plant is toxic and causes itchy rashes.

What is poison oak?

300

This term means “joint inflammation.”

What is arthritis?

300

These two tissues connect bones and muscles.

What are ligaments and tendons?

300

The “fight or flight” response is controlled by this part of the autonomic system.

What is the sympathetic division?

300

This nerve carries signals from the eye to the brain.

What is the optic nerve?

300

This is the main artery that exits the heart.

What is the aorta?

300

A red-barked shrub, common in chaparral regions.

What is manzanita (Arctostaphylos manzanita)?

400

This word root means "bone."

What is osteo?

400

These bones are located in your lower leg.

What are the tibia and fibula?

400

He survived a brain injury that helped scientists learn about brain function.

Who is Phineas Gage?

400

This part of the eye focuses light onto the retina.

What is the lens?

400

These small vessels allow oxygen to diffuse into tissues.

What are capillaries?

400

This lizard is common in California and eats insects.

What is the western fence lizard?

500

This means "maintaining internal balance in the body."

What is homeostasis?

500

This condition causes bones to become weak and brittle.

What is osteoporosis?

500

The brain stem connects the brain to this part of the nervous system.

What is the spinal cord?

500

This is the spot on the retina where no photoreceptors are found.

What is the blind spot?

500

This blood type is known as the universal donor.

What is type O?

500

This conifer can grow to be among the tallest trees on Earth.

What is the coastal redwood (Sequoia sempervirens)?