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Human Body Systems

M
mednerd_42 20 terms Dec 16, 2025
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Terms 20

1
Circulatory System
System that transports blood, oxygen, and nutrients
2
Heart
Muscle that pumps blood through the body
3
Arteries
Blood vessels carrying blood away from the heart
4
Veins
Blood vessels carrying blood toward the heart
5
Capillaries
Tiny blood vessels where gas exchange occurs
6
Respiratory System
System responsible for breathing and gas exchange
7
Lungs
Organs where oxygen enters blood and carbon dioxide leaves
8
Diaphragm
Muscle that helps lungs expand during breathing
9
Digestive System
System that breaks down food and absorbs nutrients
10
Stomach
Organ that chemically and mechanically digests food
11
Small Intestine
Main site of nutrient absorption
12
Large Intestine
Absorbs water and forms waste
13
Nervous System
Body system that controls responses and communication
14
Brain
Control center of the nervous system
15
Spinal Cord
Pathway connecting brain and body
16
Muscular System
System that enables movement
17
Skeletal System
Framework of bones supporting the body
18
Immune System
Defense system against pathogens
19
Endocrine System
System of glands producing hormones
20
Hormone
Chemical messenger controlling body processes