Body Systems 1
1. What type of muscle is a cardiac muscle?
2. Is it voluntary or involuntary?
1. Heart
2. Involuntary
What is the largest organ in the body?
Skin
Food is broken down into a usable form by which system?
Digestive system
Which organ transports blood through the body?
Heart
Which body system protects us from disease?
Immune system
What 2 body systems enable humans to move?
Skeletal and muscular
What body system enables breathing?
Respiratory System
Which body system is responsible for removing waste?
Excretory system
How many chambers are in the heart?
4
What type of cell does the immune system rely on?
White blood cells
Vertebrates have what type of skeleton?
Endoskeleton
What gases are exchanged by the respiratory system?
Oxygen in
Carbon dioxide out
Name one organ that is involved in digestion, but not part of the digestive tract?
liver, pancreas, gallbladder
What are three organs in the excretory system?
What do you call a foreign substance that causes an immune response?
Antigen
What part of the bone makes blood cells?
Marrow
What is the pathway that oxygen enters the body?
Nose/Mouth, trachea, bronchi, lungs
What are the two types of digestion?
What are ways the body carries each type?
Mechanical - teeth, muscles
Chemical - saliva, stomach acid, bile
What are the two main parts of the nervous system?
Spinal cord and brain
What is it called when two or more bones come together?
Joint
How many bones are in an adult human body?
206
What are the tiny air sacs in the lungs called?
Alveoli
The muscles in the esophagus push food down toward the stomach by the process of _______________.
Peristalsis
What are the three parts of the brain?
Cerebrum, Cerebellum, Medulla
What are three glands in the endocrine system?
Pituitary gland, adrenal glands, thyroid gland, ovaries, testes, hypothalamus, pineal gland