Directional Terms & Vocabulary
Skeletal System
Muscular System
Respiratory System
Nervous System
100

This term means “toward the head.”

What is cranial?

100

This bone protects the brain.

What is the skull?

100

Muscles that are attached to bones and help animals move.

What are skeletal muscles?

100

The main function of the respiratory system.

What is gas exchange?

100

The basic functional unit of the nervous system.

What is a neuron?

200

This term describes a structure closer to the midline of the body.

What is medial?

200

These bones make up the backbone.

What are vertebrae?

200

This muscle allows the heart to pump blood.

What is cardiac muscle?

200

This structure connects the throat to the lungs.

What is the trachea?

200

The part of the neuron that sends messages away from the cell body.

What is the axon?

300

The term used to describe something closer to the tail.

What is caudal?

300

The bone of the upper front limb in most animals.

What is the humerus?

300

Muscles that work automatically, such as in digestion.

What are smooth muscles?

300

Small air sacs in the lungs where oxygen exchange occurs.

What are alveoli?

300

This part of the brain controls balance and coordination.

What is the cerebellum?


400

This term means farther away from the body’s point of attachment.

What is distal?

400

These bones form the rib cage and protect vital organs.

What are ribs?

400

The muscle group responsible for bending a joint.

What are flexor muscles?

400

This part of the upper respiratory tract warms and filters air.

What is the nasal cavity?

400

This body system helps regulate body temperature.

What is the integumentary or nervous system?

500

The correct term for the back side of an animal’s body.

What is dorsal?

500

The main function of the skeletal system besides support.

What is protection, movement, or blood cell production?

500

Name one muscle commonly identified in animal anatomy labs.

What is biceps, triceps, quadriceps, or gastrocnemius?

500

Muscle that helps lungs expand and contract.

What is the diaphragm?

500

The function of dendrites in a nerve cell.

What is receiving signals?

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