7th Science Human Body Systems Vocabulary

Question 1

Male reproductive cells.

Answer 1

Sperm

Question 2

Female reproductive cells.

Answer 2

Egg

Question 3

A strong, flexible tissue that covers the end of bones.

Answer 3

Cartilage

Question 4

Where two or more bones meet.

Answer 4

Joint

Question 5

Tissue that connects two bones.

Answer 5

Ligament

Question 6

A voluntary muscle that attaches to the bones.

Answer 6

Skeletal Muscle

Question 7

An involuntary muscle found only in the heart.

Answer 7

Cardiac Muscle

Question 8

Involuntary muscles that are smooth in appearance.

Answer 8

Smooth Muscle

Question 9

The mechanical and chemical breakdown of food into small particles that your body needs.

Answer 9

Digestion

Question 10

A muscular tube that connects the mouth to the stomach.

Answer 10

Esophagus

Question 11

Waves of muscle contractions that move food through the esophagus

Answer 11

Peristalsis

Question 12

Bean shaped organ that filters, or removes waste from blood.

Answer 12

Kidney

Question 13

A muscular sac that holds urine until the urine is extracted.

Answer 13

Bladder

Question 14

The main organ of the respiratory system.

Answer 14

Lungs

Question 15

A large muscle that contracts and relaxes to move the air in and out of the lungs.

Answer 15

Diaphragm

Question 16

Upper two chambers of the heart.

Answer 16

Atria

Question 17

Lower two chambers of the heart.

Answer 17

Ventricles

Question 18

A vessel that carries blood away from the heart.

Answer 18

Artery

Question 19

A vessel that carries blood towards the heart.

Answer 19

Vein

Question 20

A cluster of small spongy structures that filter particles from lymph.

Answer 20

Lymph nodes

Question 21

An organ that recycles worn out red blood cells and produces and stores lymphocytes.

Answer 21

Spleen

Question 22

Part of the brain that controls memory, language, and thought.

Answer 22

Cerebrum

Question 23

Part of the brain that coordinates voluntary muscle movement and regulates balance and posture.

Answer 23

Cerebellum

Question 24

Area of the brain that controls the involuntary functions and connects them to the brain to the spinal cord.

Answer 24

Brain stem

Question 25

A chemical that is produced by an endocrine gland in one part of the organism and is carried in the bloodstream to another part of the organism.

Answer 25

Hormone